The force exerted on the surface assuming that it bring the electron to rest is -6.1 * 10^-16 N
How to calculate?The force exerted on the surface can be determined using the equation below:
Force = (incident current) * (change in kinetic energy) / (change in time)
The change in kinetic energy of each electron can be calculated as:
ΔKE = (1/2) * (mass of electron) * (final velocity^2 - initial velocity^2)
Since the electrons come to rest, the final velocity is 0. Hence the initial velocity can be calculated using the equation:
initial velocity = (2 * potential difference) / mass of electron
Therefore we calculate ΔKE and then find the force:
mass of electron = 9.1 * 10^-31 kg
potential difference = 5 kV = 5 * 10^3 V
time = 5 s
incident current = 50 * 10^-6 A
initial velocity = (2 * potential difference) / mass of electron = (2 * 5 * 10^3) / (9.1 * 10^-31) = 1.1 * 10^8 m/s
ΔKE = (1/2) * (mass of electron) * (0^2 - (1.1 * 10^8)^2) = -6.1 * 10^-19 J
Force = (incident current) * (ΔKE) / (time) = (50 * 10^-6) * (-6.1 * 10^-19) / (5) = -6.1 * 10^-16 N
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(a) In unit-vector notation, what is the sum of a = (4.3 m )î + (3.4 m ) ĵ and b = ( − 13.0 m )î + (7.6 m )ĵ. What are (b) the magnitude and (c) the direction of a + b (relative to î)?
Answer: Hope this helps:
(a) The sum of two vectors a and b in unit-vector notation can be calculated using vector addition:
a + b = (4.3 m)î + (3.4 m)ĵ + (-13.0 m)î + (7.6 m)ĵ
= (4.3 m - 13.0 m)î + (3.4 m + 7.6 m)ĵ
= (-8.7 m)î + (11.0 m)ĵ
(b) The magnitude of a vector can be calculated using the Pythagorean theorem:
|a + b| = √((-8.7 m)² + (11.0 m)²) = 12.8 m
(c) The direction of a vector relative to î can be calculated using the tangent of the angle between the vector and the x-axis (î):
tan(θ) = |(11.0 m) / (-8.7 m)| = 1.26
θ = arctan(1.26) = 57.3°
So, the direction of the vector a + b is 57.3° relative to the x-axis (î).
flow control valves control the volume of flow by varying the size of a(n) ______ through which the fluid flows.
Flow control valves control the volume of flow by varying the size of an orifice through which the fluid flows.
Flow control valves are devices used to regulate the flow of fluids, gases, or electrical signals in a system. They are used in a variety of applications, such as controlling the flow of water to a faucet, regulating the flow of fuel to an engine, or controlling the flow of electricity to a motor.
Flow control valves work by either partially or completely blocking the flow of the fluid, gas, or electrical signal, depending on the type of valve and the application. This can be done either manually or automatically.
Manual valves are typically controlled by a lever or dial, while automatic valves are controlled by a set of sensors or other electrical components. Flow control valves are essential to the proper functioning of a wide range of systems, and their design must take into account the intended use of the system.
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a ball is dropped from the top of a building 96 ft. tall. the height after time (in seconds) is given by , where is the height of the ball when dropped.
That graph of your function is a parabola, which is the first thing to notice in this situation. For a parabola, the vertex at point y = ax2 + bx + c is the (h, k).
How do you find the height of where a ball was dropped?The height at which a ball was thrown can be determined in several ways.
In free fall, objects are known to follow the equation h=-4.9t2+c, where t is the time in seconds and c is the starting height. Timed by a student, the plunge occurred in 1.46 seconds. Use this to calculate the height, to at least two decimal places, where the ball was dropped.
Using this equation y = -16t2 + 96t + 3, we know that a = -16, b = 96, and c = 3 h = -b/2a h = -(96) / 2(-16) h = -96 / -32 h = 3 seconds.
This indicates that in three seconds, the ball will have reached its highest point. However, the question of what height that is poses a challenge. Let's thus add t=3 to our equation as a last step.
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an electric field of magnitude 3.54 kn/c is applied along the x axis. calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true
Complete question: Conditions are:
(A) The plane and the yz plane are parallel. You could be presuming that the electric field and rectangular plane are not in the same relative direction.
(b) The plane is perpendicular to the x-y plane. [tex]N·m^2/C \s[/tex]
(C) The y-axis is contained within the plane, and its normal intersects the x-axis at a 39.0° angle. [tex]Nm2/C[/tex]
Values of electric flux for different conditions in electric field are (a) 0.861 [tex]Nm^2/C[/tex], (b) no electric flux and (c) 0.697 [tex]Nm^2/C[/tex]
The electric flux is the flow of electric field through a surface and is calculated by multiplying the surface area with the component of the electric field that is perpendicular to the surface.
In electric flux of electric field:
(a) If the rectangular plane is parallel to the yz plane, the electric field is perpendicular to the plane and the electric flux will be equal to the surface area multiplied by the electric field. The surface area of the plane is 0.350 m * 0.700 m = 0.245 [tex]m^2[/tex]. Thus, the electric flux = 0.245 [tex]m^2[/tex]* 3.54 kN/C = 0.861 [tex]Nm^2/C.[/tex]
(b) If the plane is parallel to the xy plane, the electric field will be parallel to the plane and there will be no electric flux through the plane.
(c) If the plane contains the y axis and its normal makes an angle of 39.0° with the x axis, the component of the electric field perpendicular to the plane will be 3.54 kN/C * cos(39.0°). The electric flux = 0.245 [tex]m^2[/tex] * 3.54 kN/C * cos(39.0°) = 0.697 [tex]Nm^2/C[/tex].
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Give me the real answer
Answer: 12,339
Explanation:
NEC sections 422.30 through 422.35 allow which of the following disconnecting means for fixed appliances not over 300 VA or 1/8 horsepower?
I. branch circuit breaker
II. attachment plug cap
III. separate disconnect switch
III separate disconnect switch allows disconnecting means for fixed appliances through NEC sections.
What does the disconnecting means NEC code mean?Unless the location and configuration make the function obvious, each disconnecting device should be legibly labeled to show what it is intended to do. The marking must indicate the circuit source that supplies the disconnecting mechanism in all constructions other than one- or two-family homes.
What does the National Electric Code's Article 422.30 mean?Each appliance must be concurrently unplugged from all ungrounded conductors in line with Part III of Article 422 per Section 422.30.
What is the highest voltage drop that the NEC permits?In accordance with the NEC, the maximum voltage drop for either the feeder or branch circuit shouldn't exceed than 3% and the combined maximum shouldn't be more than 5%.
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Identify the types of interparticle or intermolecular forces present in the solids of each of the following substances. (Select all that apply.) (a) Co | dispersion, dipole-dipole, H bonding, ionic (b) BF3 | dispersion, dipole-dipole, H bonding, ionic (c) CH | dispersion, dipole-dipole, H bonding, ionic (d) NaNO3 | dispersion, dipole-dipole, H bonding, ionic (e) Ar | dispersion, dipole-dipole, H bonding, ionic (f) NH4CI | dispersion, dipole-dipole, H bonding, ionic.
The intermolecular forces present in Co is dipole-dipole, BF3 is dispersion, CH is dispersion, NaNO3 is dipole-dipole, Ar is London Dispersion Force and in NH4Cl dispersion forces are present.
Intermolecular forces are the main reason for the substance's physical characteristics. The condensed states of matter are caused by intermolecular forces. London dispersion forces are the intermolecular force seen in CO. Due to its high degree of polarity, CO engages in dipole-dipole interaction. Van der Waal's force is the sole intermolecular force present in the boron trifluoride molecule. Although C-H bonds have a small amount of polarity. For this substance, dispersion forces would be the most important intermolecular force. For noble gases like argon, there is an intermolecular force of attraction known as the London Dispersion Force (Ar). Since both molecules in NH4Cl are non-polar, the only forces at play are London dispersion forces.
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where do the forms exist, according to plato? group of answer choices in physical objects. in a separate, immaterial realm. in our sensory experience. in the cave.
According to Plato, Forms exist in a separate, immaterial realm. In his philosophy, Forms are abstract concepts such as justice, beauty, equality, and goodness that exist beyond the physical world. They are perfect and unchanging, while physical objects are mere copies or representations of these Forms.
Plato believed that our sensory experience of the physical world is limited and deceptive, and that the Forms can only be apprehended by the mind. He also argued that knowledge of the Forms is innate, and that it can be awakened through philosophical inquiry and the study of mathematics.
In the allegory of the cave, Plato describes Forms as the source of all meaning and truth in the world, and suggests that our goal as humans should be to move from the cave of sensory experience to the realm of Forms and gain true knowledge and understanding.
Plato's theory of Forms continues to be a subject of debate and discussion in philosophy, and has had a profound impact on the development of Western thought.
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is it possible to achieve the desired reduction in diameter uniformly throughout the rod length? show relevant calculations in support of your answer and (b) calculate the work done in stretching the rod till the onset of inhomogeneous (nonuniform) deformation. assume the initial length of the rod to be 50.8 mm
When an is a fixed while x is the distances from one end, the diameters of a rods is given by the formula d = d0 (1 + ax).
How large a rod should be?The diameter of a curtain rod, or the cross-sectional breadth of the pole, is used to gauge all curtain rods. In general, curtain rod diameters range from one to three inches dependent on the weight of your drapes.
Inhomogeneous substance is what?The nc-Si:H is a non - homogeneous substance made up of crystalline grains, grain boundaries, and an amorphous phase with a broad range of crystal volume fractions. Reference Module for Materials Science and Engineering.
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Calculate the force of gravity acting on your 7 kg backpack
Answer:
70 N
Explanation:
F = m x a ( Newton’s second law )
= 6 kg x 10 m/s2 (Acceleration due to gravity is 9.8 m/s2 but 10 when rounded)
= 70 N
Hope it helps!
identify two factors that determine the amount of electricity that can be generated by an indi-vidual hydroelectric power plant. (2 points)
Two factors that determine the amount of electricity that can be generated by an individual hydroelectric power plants - It depends on the vertical distance through which the water falls and the flow rate, or amount of water that flows past a certain point per unit time, The greater the distance that the water falls, the more potential energy it had and the more electricity is generated the more kinetic energy it has and the more .
Impoundment, diversion, and pumped storage facilities are the three different types of hydroelectric facilities. Hydropower plants vary in their utilisation of dams. Despite the fact that not all dams were constructed for hydropower, they have been successful in supplying vast amounts of renewable energy to the grid. As of 2020, fewer than 2,300 of the more than 90,000 dams in the United States were producing electricity. The other dams are utilised for water supply, irrigation, flood control, stock/farm ponds, and recreation. Hydropower facilities come in a variety of sizes, from modest initiatives providing electricity for a single house or community to massive undertakings.
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a man runs at a speed of 4m/2 to overtake a standing bus. when he is 6m behind the door the bus moves forward and continues with
When a man approaches a bus that is standing still at speed of four m/s and bends the door at a distance of 6 m, the bus accelerates forward at a constant rate of 1.2 m/s.
Describe acceleration using an example ?An object's velocity can alter depending on whether it moves faster or slower or in a different direction. A falling apple, a moon orbiting the earth, and a car stopped at a stop sign are a few instances of acceleration.
What is a prime illustration of acceleration?A car is speeding as it rounds a corner at steady velocity because its trajectory is shifting. The acceleration increases with turning speed. As a result, an increase or a decrease in speed or direction, or both, when velocity changes, either in magnitude or both.
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Light takes about 8.3 minutes to travel from the Sun to Earth. When it is closest, Neptune is 30.0 times farther from Earth than the Sun is. How long does it take for light from the Sun to reach Neptune, measured in minutes?
Answer:
it takes light approximately 0.25 minutes to travel from the Sun to Neptune.
Explanation:
The distance from Neptune to the Sun is 30.0 times farther than from the Earth to the Sun, so it's 30.0 * 93 million miles = 2,790 million miles.
The speed of light is approximately 186,282 miles per second, so it takes light approximately 2,790 million miles / 186,282 miles/second = 14.97 seconds to travel from the Sun to Neptune.
Since there are 60 seconds in a minute, this is equivalent to 14.97 seconds / 60 seconds/minute = 0.25 minutes.
So, The distance from Neptune to the Sun is 30.0 times farther than from the Earth to the Sun, so it's 30.0 * 93 million miles = 2,790 million miles.
The speed of light is approximately 186,282 miles per second, so it takes light approximately 2,790 million miles / 186,282 miles/second = 14.97 seconds to travel from the Sun to Neptune.
Since there are 60 seconds in a minute, this is equivalent to 14.97 seconds / 60 seconds/minute = 0.25 minutes.
so it takes light approximately 0.25 minutes to travel from the Sun to Neptune.
fill in the blank. your ability to perceive the color of a vibrant blue sky or a red rose depends on the responses of the in your retina, and your ability to find your way to the bathroom in the dark depends upon the___in your retina.
Your ability to perceive the color of a vibrant blue sky or a red rose depends on the responses of the in your retina, and your ability to find your way to the bathroom in the dark depends upon the rods in your retina.
Retinal rods are in charge of seeing in low or obscured light. They aid in peripheral (side) vision and are found on the retina's outer margins. Night vision is only visible in black and white since rods lack color vision. 500 to 1,000 times more sensitive to light than cones, rods are.
The rods utilise rhodopsin as their photopigment. For night vision, it is essential. The pigments in these materials break down in intense light, making them less sensitive to low light. The process of "dark adaption" in which darkness causes the molecules to rebuild. In light of this, the eye adapts to see in low light.
Rhodopsin regenerates after being exposed to darkness. As a result, over time, the retina's sensitivity rises (this can take approximately one hour). Reflexive changes in pupil size take place throughout this adaptation phase.
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problem 1.14. calculate the mass of a mole of dry air, which is a mixture of n2 (78% by volume), o2 (21%), and argon (1%)
The mass of a mole of dry air is approximately 28.97 g/mol, which we attain by adding up the mass of each component gas.
The mass of a mole of dry air can be calculated by determining the mass of each component gas in the mixture and adding them together. A mole of a gas is defined as the number of atoms or molecules of the gas that contains Avogadro's number of entities, which is 6.022 x 10^23.
To calculate the mass of a mole of air, we first need to determine the number of moles of each component gas in a sample of air. The volume percent of each gas in dry air can be used to calculate the number of moles of each gas in a sample. For example, the number of moles of nitrogen (N2) in a sample of air can be calculated as follows:
n(N2) = 0.78 x total number of moles of air
Similarly, the number of moles of oxygen (O2) and argon (Ar) in a sample of air can be calculated using their volume percentages.
Next, we need to determine the molecular weight of each component gas, which is the mass of one mole of the gas. The molecular weight of nitrogen is 28.02 g/mol, the molecular weight of oxygen is 32 g/mol, and the molecular weight of argon is 39.95 g/mol.
Finally, to calculate the total mass of a mole of air, we add up the mass of each component gas:
Mass of a mole of air = n(N2) x MW(N2) + n(O2) x MW(O2) + n(Ar) x MW(Ar)
The mass of a mole of dry air is therefore = 28.97 g/mol.
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TRUE OR FALSE the term thyristor includes all the semiconductor devices which show inherent on-off behavior, as opposed to allowing gradual changes in conduction.
The term thyristor includes all the semiconductor devices which show inherent on-off behavior, as opposed to allowing gradual changes in conduction is a true statement.
A thyristor is a four-layer semiconductor device that uses P-type and N-type materials in alternate layers (PNPN). Anode, cathode, and gate, commonly referred to as a control electrode, are the three electrodes that typically make up a thyristor.
The silicon-controlled rectifier is the most prevalent kind of thyristor (SCR). No current flows until a pulse is applied to the gate when the cathode is negatively charged in relation to the anode. As soon as this happens, the SCR starts to conduct current until the voltage between the cathode and anode is reversed or dropped below a certain threshold or holding value. A tiny triggering current or voltage can be used to switch or control massive amounts of electricity using this sort of thyristor.
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quantitatively determine the radius of revolution, r, of the satellite in terms of the given quantities and any fundamental constants.
The satellite's radius of rotation, r, expressed in terms of the provided values, [tex]fc=mv^2/r $and$ fg=GmM/r^2.[/tex]
How can I determine a satellite's radius?We can determine the orbital period by noting the interval between transits. If the mass of the orbiting star is known, one may use Kepler's Third Law to calculate the orbital radius of the planet (R3=T2Mstar/Msun; the radius is in AU and the period is in earth years).
What connection exists between a satellite's period T and orbital radius R?Kepler's law specifies the relationship between the circular path's radius (r) and time period (T). Kepler asserted that the cube is directly proportional to the square of the time period.
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Question:
Quantitatively determine the radius of revolution, R, of the satellite in terms of the given quantities and any fundamental constants
Fc=Fg
Fc=_______
fg=_______
Fc=_______=Fg=_______
Identify which of the following you would expect to be characteristic of a solid with the formula P4. Drag the appropriate items to their respective bins: poor thermal conductivity, very hard, low melting point, high electrical conductivity
Characteristic
Not characteristic
Thermal conductors are substances that are efficient thermal energy conductors. Metals are excellent conductors of heat. Heat insulators are substances that have a low thermal conductivity. Materials like plastic and wood are heat insulators, as are gases like air.
How do electrical conductivity and melting point relate to one another?The electrical conductivity changes with temperature as a new property, declines after the melting point is reached, and ultimately totally disappears. Many experimental tests, including the phase change of metals utilising electrical wire bursts, have seen this disappareance.
High thermal conductivity materials will transmit heat quickly, either by absorbing heat from another material that is hotter than them or by transferring heat to another material that is cooler.
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A small car of mass 500 kg is pushing a large truck of mass 980 kg due east on a level road. The car exerts a horizontal force of 1500 N on the truck. What is the magnitude of the force that the truck exerts on the car
Answer:
Below
Explanation:
Equal and opposite 1500 N
Blake records the amount of daily rainfall along with the average daily temperature for several days. The scatterplot shows his data.
Which statement about the outlier in the data set is true?
O Blake should not include the outlier because it overstates the effect of rainfall on temperature.
O Blake should include the outlier because it shows there is no relationship between rainfall and average daily temperature.
O Blake should not include the outlier because it understates the effect of rainfall on temperature.
O Blake should include the outlier because it shows there is a relationship between rainfall and temperature.
The scatterplot data set is true Because the outlier overstates how much rain affects temperature, Blake shouldn't include it.
A scatter plot displays what information?The changes seen in two different sets of variables might be related in several ways, according to a scatter plot. The strength of a relationship between two variables can be tested statistically and visually with this method.
What is the purpose of a scatter plot?The graphs known as scatter plots show how two variables within a data collection relate to one another. Both a two-dimensional plane and the Cartesian system are used to represent the data points. The Y-axis is used to plot the dependent variable, while the X-axis is used to represent the independent variable or attribute.
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a 0.010 kg bullet is fired into a stationary block of wood of mass 5.0 kg suspended from a string. the bullet imbeds in the block, and the block/bullet swing to an elevation 0.10 m above where they started.
The initial momentum of the bullet is 0.01 kg m/s. After it embeds in the wooden block, the momentum of the block and bullet together is 0.01 kg m/s.
The conservation of momentum states that momentum is conserved, so the total momentum of the block and bullet must remain the same. This means the final velocity of the block and bullet is 0.01 kg m/s.
To find the maximum height that the block and bullet will reach, you can use the equation for the kinetic energy of an object: [tex]KE =\frac{1}{2} mv^{2}[/tex]. The kinetic energy of the block and bullet is equal to the potential energy they gain when they reach a height of 0.10 m. So, the equation would look like this:
[tex]KE =\frac{1}{2} mv^{2} = mgh[/tex]
Where m is the mass of the block and bullet, v is the velocity (0.01 m/s), and h is the height (0.10 m). Solving for h, we get h = [tex](\frac{1}{2} )(\frac{v^{2} }{g} )[/tex]= 0.25 m.
So, the maximum height that the block and bullet will reach is 0.25 m.
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in order to determine the size of the heating element of a new oven, we wish to determine the rate of heat loss through the walls, door, and the top and bottom sections of the oven. in your analysis, would you consider this to be a steady or
Since the thermal conditions in the kitchen and the oven, in general, fluctuate over time, heat transfer through the walls, door, and top and bottom sections of an oven is temporary in nature.
However, under the worst predicted conditions, such as the oven's highest temperature setting and the kitchen's projected lowest temperature (the so-called "design" conditions), we would examine this issue as a steady heat transmission problem. If the oven's heating element is big enough to maintain the intended temperature setting under the worst case scenario, it is also big enough to do so by cycling on and off under all circumstances.
Since heat will be entering the oven through each of its six sides, heat transfer from the oven will be three-dimensional in nature. Though it can be considered as being one-dimensional, heat transfer through any wall or floor occurs in the direction normal to the surface. Therefore, by assuming that the heat transfer is one-dimensional at each of the four sides as well as the top and bottom portions, as well as by summing the computed values of heat transfers at each surface, this problem can be substantially simplified.
The question is incomplete, it should be:
In order to determine the size of the heating element of a new oven, it is desired to determine the rate of heat transfer through the walls, door, and the top and bottom section of the oven. In your analysis, would you consider this to be a steady or transient heat transfer problem? Also, would you consider the heat transfer to be one-dimensional or multidimensional?
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what is the equation of the sine function that models the displacement of the tire swing? replace the values of a, b, and d in the box. then check your work by using the graphing tool to plot the function.
Answer:
Hope this helps after so long!
Explanation:
A student puts a strong magnet on the outside of a copper pipe and notices the pipe is nonmagnetic. The student then drops the magnet through the pipe and the magnet immediately descends at a constant rate. Which of the following describes why the magnet moves as described?
The interaction with the copper pipe induces a current in the magnet.
The moving magnetic field induces a current in the copper pipe.
The downward motion of the magnet induces a magnetic field, which attracts the magnet to the copper.
The strong magnetic field causes air turbulence in the pipe.
The interior of the copper pipe is magnetic and attracts the magnet.
The flowing magnetic field creates a current in the copper pipe, which causes the magnet to move as specified.
What is magnetism?Magnetism is a physical quality mediated by a magnetic field that refers to the ability to create attracted and repulsive occurrences in other substances. Diamagnetic materials are those that magnetize freely when put in a magnetic field. However, the magnetization is oriented in the opposite direction as the magnetic field. These materials' magnetism is referred to as diamagnetism.
Here,
The flowing magnetic field creates a current in the copper pipe, which causes the magnet to move as specified. This is known as electromagnetic induction, and it occurs when a changing magnetic field generates an electric field, which induces a current in a conductive substance such as copper. The induced current generates its own magnetic field, which opposes the magnetic field of the magnet, slowing it down and forcing it to drop at a steady pace.
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the video states that the planetary orbits are shown to scale. which statement correctly describes the way the planet sizes are shown compared to their orbits?
In relation to their orbits, all of the planets are substantially too big. According to Kepler's first law, the Sun is at one focus of each planet's elliptical orbit.
What one of the following traits does each planet inside the solar system share?It specifies three requirements for a planet: It must revolve around the Sun, a planet in our solar system. It must be large enough for gravity to pull it in a spherical direction. It must have been large enough that any nearby objects of a similarly sized were removed by its gravitational pull.
Which of following traits applies to all four inner solar system planets?The interior planets are all solid rocky, dense planets The moons of the inner planets are either absent or limited to one Earth or three Mars. The inner planets don't have any rings. The planets orbits have smaller orbits all around Sun than the outer planets, but they all rotate more slowly.
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imagine dropping a rubber ball to the floor describe what happens to the ball after you release it what kind of sights and/or sounds occur when the rubber ball reaches the floor
The ball's gravitational potential energy is converted into kinetic energy as it falls toward the ground. The ball's kinetic energy will keep rising as it picks up speed until it eventually slams into something.
When a rubber ball is dropped and hits the ground, what force causes it to bounce?Gravity draws a ball toward the floor when you drop it. The ball gains kinetic energy, the energy of motion. That energy must go somewhere when the ball stops rolling and reaches the ground. The ball is bent from its original round shape to a squashed shape by the energy.
What occurs when a ball is dropped?Gravity drags the ball down and increases its speed as you drop it. At the instant of impact, it squashes when it meets the ground. The floor presses against the squished ball as it returns to its former shape, and the floor pushes back in response.
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When a rubber ball is dropped to the floor, the ball's elasticity causes it to bounce upon impact.
What is rubber ball?
Rubber ball is a soft, bouncy ball made of rubber. It is generally used as a toy, but can also be used in sports and games. Rubber balls are available in a variety of sizes, shapes, and colors. They are usually made from natural latex rubber, but some are made from synthetic materials like polymers and silicone. Rubber balls are lightweight, durable, and can bounce off a variety of surfaces. Because of their bounciness and softness, rubber balls are great for bouncing, throwing, catching, and playing games. They are also great for kids because they are safe and easy to handle. Rubber balls can be used in games like catch, dodgeball, and even for juggling. They can also be used for bouncing off walls and obstacles. Rubber balls are a great way to have fun, get exercise, and develop coordination skills.
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A car of 1000kg moves at a constant speed of 20m/s along a horizontal road. If the frictional force is 200N, calculate the power developed by the engine
The power developed by the engine is 4 kilowatts.
What is Frictional force?Friction force can be defined as the force resisting the relative motion of solid surfaces, fluid layers and material elements sliding against each other.
To calculate the power developed by the engine, we need to find the net force acting on the car and multiply it by its velocity.
Since the car is moving at a constant speed, the net force acting on it is equal to the frictional force:
Net force = Frictional force = 200 N
Power = Force x Velocity = 200 N x 20 m/s = 4000 Watts = 4 kilowatts.
So, the power developed by the engine is 4 kilowatts.
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which of the following units would need to be converted before being used for a caculation
Answer:
it depends what are the units
Explanation:
Answer:
What and where are the units that you are talking about in your question that you are asking about.
Explanation:
the shape of the term structure include which of the following? multiple select question. stock price to earnings ratios risk expected inflation expectations of future interest rate changes
The link between short-term and long-term interest rates is referred to as the structure.
The term structure of interest rates reflects the market players' expectations for future changes in interest rates as well as their evaluation of the monetary system. Future cash flows' present values and timing are affected by changes in interest rates. The underlying value of a bank's assets and liabilities is subsequently altered. Real rate of interest, inflation premium, and interest rate risk premium are the three key factors that affect how term structures are shaped. Pure time value of money determines the real rate of interest. The necessity for compensating for anticipated future inflation gives rise to the inflation premium.
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match the igneous rock example with its description. instructions obsidian obsidian drop zone empty. pumice pumice drop zone empty. scoria scoria drop zone empty. tuff tuff drop zone empty. volcanic breccia volcanic breccia drop zone empty. pegmatite pegmatite drop zone empty. ash, pumice, crystals, and rock fragments that may be welded contains many vesicles; usually dark to reddish in color contains vesicles and can float on water fragmented igneous rock shiny volcanic glass contains very large crystals
Pegmatic-A in the presence of water, deep within the Earth. Porphyritic A and B first appear deep inside the Earth, then appear later close to the surface. B- as gas bubbles through lava close to the Earth's surface.
What four types of igneous rocks are there?There are two fundamental kinds: Diorite, gabbro, granite, and pegmatite are examples of intrusive igneous rocks that solidify below the Earth's surface. Andesite, basalt, obsidian, pumice, rhyolite, and scoria are examples of extrusive igneous rocks that solidify on or above the Earth's surface.
What seven instances of igneous rocks?According to definitions, igneous rocks are forms of rocks that are created when molten rock, or rock that has been liquefied by extreme heat and pressure, cools to a solid condition. Rock that is in the process of melting and vents or fissures at volcanic centers (when cooled, they form rocks such as basalt, rhyolite, or obsidian).
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