So the diver's velocity when her feet strike the water is 1.37 m/s.
What is velocity?Velocity is a vector representation of an object's or particle's displacement with respect to time. The meter per second (m/s) is the standard unit of velocity magnitude (also known as speed). Alternatively, velocity magnitude can be expressed in centimeters per second (cm/s).
Here,
(a) To find the diver's highest point above the board, we can use the conservation of energy principle. The initial potential energy of the diver at the takeoff point is given by
PEi = mgh
where m is the mass of the diver, g is the acceleration due to gravity (9.8 m/s² ), and h is the height of the takeoff point (1.80 m). The final potential energy of the diver at the highest point is zero, since she is at her maximum height and has no potential energy. The initial kinetic energy of the diver at the takeoff point is given by
KEi = 0.5 * m * v²
where v is the initial velocity of the diver (4.00 m/s). The final kinetic energy of the diver at the highest point is also zero, since she has no velocity at that point.
The total mechanical energy of the system (the diver) is conserved, so the initial potential and kinetic energies are equal to the final potential and kinetic energies:
PEi + KEi = PEf + KEf
Substituting the expressions for the initial and final potential and kinetic energies, we have
mgh + 0.5 * m * v² = 0
Solving for h, the height of the highest point above the board, we have
h = v² / (2g) + h
h = 4.00² / (2 * 9.8) + 1.80 = 2.63 m
So the diver's highest point above the board is 2.63 m.
(b) To find the time that the diver's feet are in the air, we can use the kinematic equation for vertical motion with constant acceleration:
y = y0 + v0 * t + 0.5 * a * t²
where y0 is the initial height of the diver's feet (1.80 m), v0 is the initial upward velocity of the diver (4.00 m/s), a is the acceleration due to gravity (9.8 m/s² ), and t is the time in the air.
We can find the final height of the diver's feet when they hit the water by setting y = 0 and solving for t:
0 = 1.80 + 4.00 * t - 4.9 * t²
t = √(4 * 1.80 / 4.9) = 0.81 s
So the time that the diver's feet are in the air is 0.81 s.
(c) To find the velocity of the diver when her feet hit the water, we can use the kinematic equation for vertical motion with constant acceleration:
v = v0 + a * t
where v0 is the initial upward velocity of the diver (4.00 m/s), a is the acceleration due to gravity (9.8 m/s² ), and t is the time in the air (0.81 s).
v = 4.00 - 9.8 * 0.81 = 1.37 m/s
So the velocity of the diver when her feet hit the water is 1.37 m/s.
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FILL IN THE BLANK Each element has a unique number of ____, called the atomic number. since an atom is neutral this number is also equal to the number of _____ present
The number of protons in each element varies. The number of protons in the nucleus of any one of an element's atoms is the element's atomic number.
What's atomic number is special?There is just one atomic number for each element. The protons in an element's nucleus are indicated by the atomic number. The elements are organised in the periodic table of the elements according to ascending atomic number.
How is an atom neutralised?Because they have an equal number of protons and electrons, atoms are neutral particles. Ions are electrically charged particles that can be created by either taking electrons away from neutral atoms to form positive ions or adding electrons to neutral atoms to produce negative ions.
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You have been hired by a national defense agency to help design the sonar system for a new submarine. Your first project is to select a material to be used for a sonar detector which will be installed on an external wall of the submarine. The acoustic impedance of water is about 1.5 MPa-s/m. Which of the materials listed below would you select for the submarine's sonar detection panel and why?
Acoustic Impedances:
Material A: 20 MPa-s/m
Material B: 0.1 MPa-s/m
Material C: 2 MPa-s/m
a)Material B because it has the largest acoustic impedance mismatch with water and will reflect the most sound.
b)Material C because it has the smallest acoustic impedance mismatch with water and will transmit the most sound.
c)Material B because it has the smallest acoustic impedance mismatch with water and will transmit the most sound.
d)Material A because it has the largest acoustic impedance mismatch with water and will reflect the most sound.
e)Material C because it has the smallest acoustic impedance mismatch with water and will reflect the most sound.
f)Material A because it has the largest acoustic impedance mismatch with water and will transmit the most sound.
g)Material B because it has a lower acoustic impedance than water which will maximize the acoustic reflectance.
d) Material A because it has the largest acoustic impedance mismatch with water and will reflect the most sound. This will result in the best reflection of sound waves and improved sonar detection capabilities for the submarine.
What happens if the acoustic impedance of the material used for the sonar detector is too close to that of water?If the acoustic impedance of the material used for the sonar detector is too close to that of water, it will result in a low reflection of sound waves. This can lead to a weaker return signal and reduced accuracy of the sonar system. The low reflection can also cause difficulty in distinguishing between the incoming and reflected sound waves, leading to errors in the data collected by the sonar system. In such a scenario, the sonar system may not be able to perform effectively and accurately. Thus, it is important to choose a material with an appropriate acoustic impedance that provides a sufficient mismatch with water for effective and accurate sonar detection.
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the duration of a discrete time signal is the length of its support interval (i.e. where it is not zero) if we have:
If y[n] = 0 whenever x[n] = 0 and there are no initial conditions, then a discrete-time system is causal.
what is discrete-time?A discrete-time signal is a set of values that each correspond to a specific point in time. The times at which the signal is defined are the signal sample times, and the accompanying signal values are represented by the signal samples.
What makes a discrete signal?Discrete signals are those that have definitions that occur at specific periods. Each independent variable has a unique value as a result. They are therefore shown as a series of numbers.
Describe variable.A quantity that is capable of taking on any one of a range of values: a variable's symbol.
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a basketball player jumps straight up for a ball. to do this, he lowers his body 0.320 m and then accelerates through this distance by forcefully straightening his legs. this player leaves the floor with a vertical velocity sufficient to carry him 0.920 m above the floor.
The floor pulls back up on the player once he presses down on it. Because of force of his push is higher than the force of gravity, the player accelerates upward.
What is the vertical jump formula?The force and motion in a sitting vertical jump are both vertical. F = FGRF - mg, wherein FGRF is the ground reaction force applied to the jump and milligrammes is the rider's body weight, results in a vertical force just on jumper.
What is the vertical velocity expressed in?Negative microbars per second, or -ub/s, are used to quantify vertical velocity. Like miles per hour, velocity is always defined as the product of the distance travelled and the passage of time. However, the distance is measured in pressure units rather than metres or miles.
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When sprinters start a race, sensors in their starting blocks detect a change in pressure. If the time difference between the starting gun going off and the change in pressure is too short, a false start is registered.
Which of these times could be the time difference that gives a false start: less than 0.2s, 0.2s, more than 0.2s? Explain your answer.
The time difference less than 0.2s could be the time difference that gives a false start.
What is persistence of hearing?The human ear converts mechanical movement into electrical signals, which are then converted into intelligible language by the brain.
Sensation is the process of receiving a sound and then processing it with the aid of the brain and ear in relation to time. Any sound's brain in our ears lasts in our brains for one-tenth of a second (0.1 sec). The persistence of hearing is the name given to this occurrence.
Hence, the time difference less than 0.2s could be the time difference that gives a false start.
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on august 27, 2003, mars reached a distance of 55,758,000 km from the earth, which was the closest distance between the two planets in nearly 60,000 years . which of the following values would you use to write this distance in scientific notation to two significant figures?
The closest distance between Mars and Earth on August 27, 2003 was 55,758,000 km. Scientific notation is [tex]56 * 10^6[/tex] km.
The closest distance between Mars and Earth on August 27, 2003 was 55,758,000 km. To write this value in scientific notation to two significant figures, we need to find the scientific notation of 55,758,000 and then round it to two significant figures.
The first step is to determine the magnitude of the number by finding the order of magnitude, which is [tex]10^6[/tex] since 55,758,000 is between [tex]10^6[/tex] and [tex]10^7[/tex]). The next step is to divide the number by [tex]10^6[/tex] to get the number in scientific notation with the magnitude of 1: 55,758,000 / [tex]10^6[/tex] = 55.758.
Finally, we round the number to two significant figures, which gives us 56. This means that the closest distance between Mars and Earth on August 27, 2003 can be written in scientific notation to two significant figures as:
[tex]56 * 10^6[/tex]
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A factory has a monthly operation cost of $280. The graph below shows the total cost, C, for manufacturing x items in a month. What is the cost of manufacturing 29 items in one month?
The cost of manufacturing 29 items in one month is $860.
What is the cost of manufacturing 29 items?
The cost of manufacturing 29 items is calculated by applying the following;
Total cost = operation cost + cost per unit item
The cost per unit item is calculated from the slope of the given graph as shown below;
slope = ( 400 - 300 ) / ( 6 - 1 )
slope = ( 100 ) / ( 5 )
slope = $ 20 / item
Total cost of 29 items = $280 + ( $20 x 29 )
Total cost of 29 items = $860
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F.1 forces and motions
F = ma, when F (force) or a (velocity) are both vector values, can be used to represent a particle with mass m is constant. A body is accelerated according to the equation if there is a net reaction force on it.
How is F force calculated?What is the secret of using force. Newton's second motion law provides the definition of the force formula: An object's force is equal to its mass times its acceleration. To apply this formula, you must use SI units for force (newtons), mass (kilograms), and acceleration (meters per second squared).
How are examples of force and motion?A sustained increase in velocity can be characterized as acceleration. Similar to this, a moving item accelerates when applied force the same direction as its motion. For instance, a bicycle will move more quickly if the pedal is rotated.
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Which postulate of the kinetic molecular theory breaks down under conditions of high pressure? Explain.The postulate that the ______ breaks down at high pressure. At high pressures, the number of molecules per unit volume _______ , so that the spacing between the particles is reduced and the volume of the gas particles become _______ significant.Options are;-Collision of one particle with another (or with the wall) is completely elastic-More-Less-decreases-Increases-volume of the gas particles is small compared to the space between them-Average kinetic energy of a particle is proportional to the temperature in K
The postulate that "the collision of one particle with another (or with the wall) is completely elastic" breaks down under conditions of high pressure. At high pressures, the number of molecules per unit volume decreases, so that the spacing between the particles is reduced and the volume of the gas particles becomes more significant.
As the pressure increases, the gas particles collide with more force and for longer periods, causing some energy to be transferred between the particles, making the collisions less elastic. This can result in a loss of kinetic energy and an increase in the internal energy of the gas, leading to a deviation from ideal gas behavior. Pressure is a measure of force per unit area and is defined as the force applied to a surface divided by the area of the surface. It is a scalar quantity and is expressed in units of force per unit area, such as pascals (Pa), atmospheres (atm), or pounds per square inch (psi). Pressure can be exerted by a fluid, such as a gas or liquid, and is transmitted equally in all directions.
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high arcing fault current do not necessarily result in high incident energies in all situations. for instance, if the protecting ocpd is current-limiting in its current-limiting range for the available arcing fault current, the ocpd will reduce the magnitude of the arcing current that actually flows and clear the arcing current in less than 1/2 cycle, resulting in low incident energy levels.
Electrical arcing occurs when a gap in a circuit just between two electrodes allows electrical current to jump. This experiment's classic counterpart may be where you first encountered this activity.
What does electrical current mean?Amperes are used to measure it (A). The more electricity flowing across the circuit, the higher the ampere value.
What 2 forms of current are there?Direct current & alternating current are the two different types of energy current. Electrons move only in the direction of direct current. Direct current is produced by batteries. Electrons move in both directions during alternating current.
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find the speed of the object in graph 1
The speed of the object for 1 second is 3 m/s.
The speed of the object for 2 seconds is 1.5 m/s.
The speed of the object for 3 seconds is 1.0 m/s.
The speed of the object for 4 seconds is 0.75 m/s.
The speed of the object for 5 seconds is 0.6 m/s.
What is the speed of an object?
The speed of an object is the distance travelled by the object divided by the total time taken for the motion.
The speed of the object for each of the time of motion and total distance traveled is calculated as follows;
v (1 ) = ( 3 m ) / ( 1 s ) = 3 m/s
v ( 2 ) = ( 3 m ) / ( 2 s ) = 1.5 m/s
v ( 3 ) = ( 3 m ) / ( 3 s ) = 1 m/s
v ( 4 ) = ( 3 m ) / ( 4 s ) = 0.75 m/s
v ( 5 ) = ( 3 m ) / ( 5 s ) = 0.6 m/s
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An electric heater has a resistance of 50 when it is immersed in water and connect to main source, it draws a current of 40A.calculate the heat gained by the water if the heater switched on for 2minutes, assuming no heat losses to the surrounding.
The heat gained by the water if the given heater switched on for 2 minutes is 2285.71 kcal.
What is electrical power?The rate of electrical energy transmission over an electric circuit per unit of time is measured as electric power in physics.
P stands for power, which is denoted and measured using the SI unit of power, the watt, or one joule per second.
The heat gained by the water if the given heater switched on for 2 minutes = 40² × 50 × 2 × 60 joule
= 9600000 joule
= 9600000 ÷ 4200 kilocalories
= 2285.71 kcal.
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satellite of mass m is in an elliptical orbit around the earth, which has mass me and radius re. the orbit varies from a closest approach of distance a at point a to maximum distance of b from the center of the earth at point b. at point a, the speed of the satellite is vo. assume that the gravitational potential energy ug
The velocity will be 9.32 m/s.
The gravitational potential energy (Ug) of the satellite can be calculated using the formula where G is the gravitational constant (G = 6.67 x 10⁻¹¹ Nm²/kg²), Me is the mass of the Earth, M is the mass of the satellite, and r is the distance between the center of the Earth and the satellite.
At point a, the distance between the center of the Earth and the satellite is equal to a, so Ug can be calculated as:
Ug = -G x (Me x M) / a
At point b, the distance between the center of the Earth and the satellite is equal to b, so Ug can be calculated as:
Ug = -G x (Me x M) / b
The difference in gravitational potential energy between point a and point b is given by:
Ug(b) - Ug(a) = G x (Me x M) x (1/b) - This difference in potential energy is equal to the change in kinetic energy as the satellite moves from point a to point b, since the total energy of the system is conserved. The kinetic energy at point a can be calculated using the formula:
Ke = 0.5 x m x v0
where m is the mass of the satellite and v0 is the velocity of the satellite at point a. The velocity can be calculated using the equation of motion for a satellite in orbit:
at point a, the velocity can be calculated as:
v0 = (G x Me / a)
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which of the following choices is not a force? torque force normal force tension force friction force weight force
The forces that are mentioned are Tension, Spring, Normal, Friction, Electric, Weight, Magnetic, Torque, and Drag forces.
A force is a push or pull that changes or tries to change an object's velocity.
Tension force is the force exerted by a rope or cable when it is stretched.
Spring force is the force exerted by a compressed or stretched spring.
Normal force is the force exerted by a surface in response to an object pressing against it.
Friction force is the force that opposes motion between two objects that are in contact.
Electric force is the force exerted by electric charges on one another.
Weight force is the force exerted by an object due to its weight, which is equal to its mass times the acceleration due to gravity.
Magnetic force is the force exerted by a magnetic field on a magnetic object.
Torque force is the force that causes an object to rotate around an axis.
Drag force is the force that opposes motion through a fluid, such as air or water.
Complete question is provided in the image below.
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find a formula for the described function. an open rectangular box with volume 7 m3 has a square base. express the surface area sa of the box as a function of the length of a side of the base, x.
A three-dimensioοnal shape's surface area is the entire area on its surface. Add the areas οf each of the six rectangular sides of a cuboid tο determine its surface area. The cuboid's length, width, and height can alsο be labelled, and the surface area (SA) can be calculated using the fοrmula SA=2lw+2lh+2hw.
A= l x w
5x * 2x² - 4x + 13
10x²- 20x² = 65x
What is the equatiοn for a rectangle's volume and surface area?The fοrmula SA=2lw+2lh+2wh is used to compute surface area. For l, w, and h, enter 7, 5, and 3, respectively.
The vοlume is computed using the formula V=lwh, which multiplies the length, width, and height. The fοrmula becomes V=753, which is cοndensed to 105 cm3, when the three dimensions are multiplied.
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Question
Americans are more likely to say the see hard work as an important quality for children than Colombians .
True or False
Answer:
true
Explanation:
hardwork brings success
g can you describe what cause the discrepancy betweent the theorhetical tensile strength and the actual strength
Defects are the remedy. Inconsistencies in the structure of a material known as defects typically occur at scales between a few nanometers and a few millimeters.
Why do the tensile strengths of various materials vary?The tensile strength of these materials is further impacted since different compositions have varying molecular architectures and amounts of intermolecular bonds.
What do intermolecular bonds mean?Intermolecular bonds are the word for the forces that hold molecules together.. The forces between two atoms within a molecule are known as intramolecular.
How Do You Define a Nanometer?One billionth of a meter is the size of the measurement unit known as a nanometer (NM). It is frequently used as a scale for creating intricate, atomic-size electronic and computing components, particularly in nanotechnology.
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took control of the valley of central mexico founded what would become the largest city in the western hemisphere engaged in gradual expansion of control over nearby societies
Aztecs took control of the valley of central Mexico, founded what would become the largest city in the western hemisphere, held warfare as a sacred ritual, and engaged in the gradual expansion of control over nearby societies
Who are the Aztecs?The Native Americans who ruled northern Mexico at the time of the Spanish invasion in the early 16th century were known as the Aztecs.
The nomadic Aztecs finally made their way to numerous little islands in Lake Texcoco, where they constructed Tenochtitlan, the forerunner of present-day Mexico City, in 1325.
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while driving down the road, you spot a friend standing on the sidewalk. you honk your horn at him while driving 80 km/h . your horn emits a frequency of 340 hz .
When you honk your horn while driving 80 km/h, your friend standing on the sidewalk hears a frequency of 340 Hz.
This is due to the Doppler Effect, which causes a change in frequency for a sound wave as it approaches or moves away from an observer. As you drive towards your friend, the frequency of the horn increases, and as you drive away from them, the frequency decreases. This shift in frequency is proportional to the relative speed between the source of the sound and the observer. The change in frequency can be calculated using the equation: f' = f × (v ± v0) / (v ± v s), where f' is the observed frequency, f is the emitted frequency, v0 is the speed of sound in air, v is the relative speed between the source and observer, and vs is the speed of the source.
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Atmospheric pressure is routinely plotted on maps using lines of equal pressure. What do meteorologists call these lines?
Ions
Isobars
Isotherms
Mean free paths
When atmospheric pressure is routinely plotted on maps using lines of equal pressure, meteorologists call these lines as isobars.
Lines connecting locations with the same atmospheric pressure are known as isobars. lines of constant pressure called isobars. An "isobar" is a line linking spots of equal pressure on a weather map. Isobars, which are reported in millibars, are produced from mean sea-level pressure readings. The straight lines that arc across the map are called isobars. They link locations that have the identical mean sea level air pressure (weight per square area of air above). There are numbers on certain isobars that display this value in hectopascals (hPa). In units of measurement known as atmospheres or bars, a barometer measures atmospheric pressure. The average atmospheric pressure at sea level and 15 degrees Celsius is represented by the standard unit of measurement known as one atmosphere (atm).
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if, while in level flight, it becomes necessary to use an alternate source of static pressure vented inside the airplane, which of the following should the pilot expect?
The VSI will briefly display a fall while the altimeter and airspeed will both register lower than usual.
Describe static pressure using an example.Static pressure can be defined as the pressure of the a fluid or gas while it is not moving. The pressure within a balloon serves as one illustration. By demonstrating how much the static pressure would rise if a fan were blowing into the a sealed system, it is used to gauge a fan's power.
Both the tiny aircraft as well as the ball would remain centered. The indicator first displays the rates of banking and, after stabilized, the speed of turn, indirect bank angle, and then directly rate of turn. The tiny aircraft will display a turn to the left while the ball remains cantered. The tiny aircraft will display a turn to the right while the ball travels to the left.
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consider the indicated events in the history of the universe that have helped make human life possible. rank the events based on when they occurred, from longest ago to most recent. to rank items as equivalent, overlap them. note: if two events occurred within seconds of each other, rank them as equivalent.
Only a few seconds separated two events can be compared and treated equally. given that you are now aware of the momentum and sequence in which these events occurred.
What exactly is momentum in daily life?The quantity of motion is what is referred to as momentum. In this instance, volume may be quantified since moving objects have mass and momentum. An object has no momentum if it is immobile.
Who was the universe's creator?Many religious people, including many scientists, believe that God created the entire universe and the different forces that have shaped physical and biological evolution, and that these forces later produced galaxy, our solar energy, and life on Earth.
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a truck moves along a frictionless level road at a constant speed. the truck is open on top. a large load of gravel is suddenly dumped into the truck. the velocity of the truck:
The velocity of the truck decreases.
What is the velocity of truck?The directional speed of an item in motion as an indication of its rate of change in position as perceived from a specific frame of reference and measured by a specific standard of time (e.g., 60 km/h northbound) is known as velocity. The idea of velocity is crucial in kinematics, the part of classical mechanics that explains the motion of bodies.
Velocity is a physical vector quantity that requires both magnitude and direction to define. Speed is the scalar absolute value (magnitude) of velocity, and it is a coherently derived unit whose quantity is measured in the SI (metric system) as metres per second (m/s or ms1). "5 metres per second," for example, is a scalar, whereas "5 metres per second east" is a vector.
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use the production possibilities schedules to answer the following question. what would be acceptable terms of trade for limes between person a and person b?
The acceptable terms of trade for limes between person A and person B can be determined by comparing their opportunity costs of producing limes and finding a mutually beneficial trade agreement based on these costs.
What is acceptable terms of trade?In order for the terms of commerce to be advantageous to both countries, the two opportunity costs must be compared, and a number that falls between them is chosen. In this case, a fair exchange rate would be 1 coal for 3 steel units.
According to question:The acceptable terms of trade for limes between person A and person B can be determined by using the production possibilities schedules. This involves considering the opportunity cost of producing limes for each person and finding a mutually beneficial trade agreement based on these costs.
If person A has a lower opportunity cost of producing limes than person B, they may be willing to trade limes at a lower price, while person B may demand a higher price due to their higher opportunity cost.
The acceptable terms of trade would be the point at which both person A and person B are willing to make the trade, and both benefit from the exchange.
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If on September 14 the Moon is full and is near Famous Star Spica, when will the Moon next be near Spica? (Give your answer as the number of days after the full Moon on September 14.)
When will it next be full? (Give your answer as the number of days after the full Moon on September 14.)
Are these values the same? Why or why not?
The Moon will next be near Spica approximately 29.5 days later. This is because the Moon orbits the Earth once every 29.5 days, which is known as its synodic period.
The next full Moon will occur approximately 29.5 days after the full Moon on September 14.
How does the moon orbit?These values are not the same because the phases of the Moon are not dependent on its position relative to other celestial objects. The time it takes for the Moon to complete one full cycle of phases, from full to full, is 29.5 days.
Meanwhile, the time it takes for the Moon to return to the same position relative to Spica is slightly different and can be calculated using the sidereal period of the Moon, which is 27.3 days.
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A kangaroo can jump over an object 2.20 m high with a vertical speed of 6.57 m/s. how long is it in the air
The kangaroo is in the air for approximately 0.667 seconds.
What is the velocity?Velocity is defined as the displacement of the object in a given amount of time and is referred to as velocity.
A kangaroo with a vertical speed of 6.57 m/s may jump over an object 2.20 m high.
To find the time a kangaroo is in the air, we need to calculate the time it takes to reach the peak of its jump and then double that time (to account for both the ascent and descent).
We can use the formula for vertical motion under constant acceleration (g = 9.8 m/s²):
t = √(2h / g)
where h is the height of the jump (2.20 m) and g is the acceleration due to gravity (9.8 m/s²).
Plugging in the values, we get:
t = √(2 × 2.20 m / 9.8 m/s²)
t = √(0.447)
t ≈ 0.667 s
So the kangaroo is in the air for approximately 0.667 seconds.
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a skydiver steps from a helicopter and falls for a few seconds until terminal velocity is reached. thereafter, until he opens his parachute, his acceleration:
A. increases
B. is constant
C. decreases
D. is zero
E. none of the above
D
Before the diver reaches terminal velocity, its acceleration is only a tiny percentage of the acceleration caused by gravity, which would finally zero out just as it achieves terminal velocity.
In physics, what does velocity mean?A scalar quantity, speed is essentially. As a matter of fact, velocity is a vector quantity. The rate at which distance changes is what it is. It measures the displacement's rate of change.
With an example, what does velocity mean in physics?The speed that something runs in a specific direction is known as its velocity. As an illustration, think of the speed of such a car driving north on the a highway or the speed at which a rocket takes off.
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a light plane must reach a speed of 31 m/sm/s for takeoff. part a how long a runway is needed if the (constant) acceleration is 2.7 m/s2m/s2
Distance needed for along a runway is needed if the acceleration is constant is [tex]\Delta x=226.8m[/tex]
The rate at which the speed and direction of a moving object vary over time is known as acceleration. Motion on a circle accelerates even while the speed is constant because the direction is always changing.When anything begins to move faster or slower, it is said to be accelerating.Both effects contribute to the acceleration for all other motions. Since acceleration has both a magnitude and a direction, it is a vector quantity.A vector quantity is also velocity.
The initial velocity is v₂ = 0 as it starts from rest.
The final velocity is v = 31m/s
The acceleration of the plane is a=2.7m[tex]s^{-2}[/tex]
Assumption.
Assume that a runway of length [tex]\Delta x[/tex]is needed.
Now, you know that
[tex]v^2=v_0^2+2a\Delta x \:\rightarrow(1)[/tex]
Now form the equation (1)
[tex]v^2=v_0^2+2a\Delta x \\[/tex]
[tex]31^2=0+2\times 2.7 \Delta x \\[/tex]
[tex]5.4\times \Delta x =35^2[/tex]
[tex]\Delta x=226.8m[/tex]
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according to ethical egoism, the morally right action is the one that produces the most favorable balance of good over evil for oneself. which of these evaluations is most appropriate?
The morally correct course of conduct, as according ethical egoism, is the one that results in the best ratio of good to evil for the moral agent.
Is moral egoism self-serving?The neglect of the others' interest in favour of one's interests is referred to as ethical egoism. However, because it is frequently in one's self-interest to help others refrain from injuring them, ethical egoism cannot be logically equated with selfishness.
What core values underpin ethical egoism?According to ethical egoism, I should only take a certain course of action if doing so will promote my own interests. According to rational egoism, I should do a certain action solely if and only because doing so will promote my self-interest.
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Answer: this theory is inconsistent with our considered moral judgements
Explanation:
suppose relfected white light is sued to observe a thin trasnpacrent coating on glass as the cotating materisl is gradualy depositted
As the coating material is gradually deposited, a transparent thin coating is visible on glass that reflects white light.
What are the different forms of coating?According on the composition of their binder, coatings are classified as organic or inorganic. Coatings with an organic binder are known as organic coatings. Coatings classified as inorganic contain an inorganic binder, such as a silicate.
Why is coating applied to glass?Glass surfaces were coated for a variety of reasons, including stability, convenience, and safety. The both glass surface as well as the coating must be ready for the coating procedure in order for the coating to be consistent and long-lasting.
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