Answer:
each spring will extend 0.049 m / 2 = 0.024 m.
Explanation:
The total spring constant of the two springs in series is 150 N/m (50 N/m + 100 N/m). The extension of the two springs can be calculated using Hooke's law:
F = kx
where F is the force applied to the spring (in this case, the weight of the 0.50 kg mass), k is the spring constant, and x is the extension of the spring.
So, x = F / k = (0.50 kg * 9.8 m/s^2) / 150 N/m = 0.049 m
This is the total extension of the two springs combined. To find the extension of each spring, we need to divide the total extension by the number of springs. Since there are two springs in series, each spring will extend 0.049 m / 2 = 0.024 m.
how much heat energy is absorbed by a 5 kg mass of heat capacity 2.1 kj/(kg-deg c) that is warmed from -3 to -1 deg c? 1 x10^5 j 21 kw 21,000 kg-m^2/sec^2 -2.1*10^4 j/sec 2.1 x 10^4 watts 105,000 watts
The 5 kilogramme mass therefore absorbs 21 kJ of heat energy. The other alternatives don't correspond to this outcome.
The amount of heat energy absorbed by an object can be calculated using the equation:
Q = m * c * ΔT
where Q is the heat energy absorbed, m is the mass of the object, c is the heat capacity, and ΔT is the change in temperature.
In this case, the mass of the object is 5 kg, the heat capacity is 2.1 kJ/(kg-°C), and the change in temperature is -3°C to -1°C, so:
Q = 5 kg * 2.1 kJ/(kg-°C) * ( -1°C - (-3°C) )
= -5 * 2.1 * 2 = -21 kJ
So, 21 kJ of heat energy is absorbed by the 5 kg mass. None of the other options match this result.
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if mass of the object is doubled, what would happen to the centripetal force?
A 0.560 kg box slides from rest down a 4.30 m high ramp that forms an isolated system . The energy lost to friction is 1.00 J. What is the speed of the box at the bottom of the ramp? Take the bottom of the ramp as the reference level.
The speed of the box at the bottom of the ramp is 8.98 m/s.
What is speed?Speed is distance travelled by the object per unit time. Due to having no direction and only having magnitude, speed is a scalar quantity With SI unit meter/second.
The kinetic energy of the box at the bottom of the ramp = (0.560 × 9.8 × 4.30 - 1.0) Joule
= 22.60 joule.
Hence, the speed of the box at the bottom of the ramp = √(2 × 22.60/0.56) m/s
= 8.98 m/s
Therefore, the speed of the box at the bottom of the ramp is 8.98 m/s.
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which formula (assuming the signs are correct) would be used to find current i if power p and voltage v are given?
Formula that would be used to find current i if power p and voltage v are P = V * I
I = P/V
Energy flow or conversion rate is measured in units of time as ower. One joule per second, or one watt, is the definition of power in the International System of Units.
Voltage is the variation in electric potential between two places. It is sometimes referred to as electric pressure, electric tension, or potential difference. The work required to transport a test charge between two places in a static electric field correlates to this.
The rate at which electrons move across a conductor is called electric current. The ampere is the SI unit for electrical current. A substance's molecular structure contains tiny particles called electrons. These electrons can be held firmly at times or loosely at other times.
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a car making a 100-km journey travels 40 km/h for the first 50 km. how fast must it go during the second 50 km to average 50 km/h?
For a 100-km journey, the average speed must be 100/2 = 50 km/h. The average velocity is 66.66 km/h.
Given: - Total Distance = 100 km
Average velocity = 50 km/h
Now Average Velocity = Total Distance / Total Time
=> 100 / T1 + T2 = 50 km/h
=> 100 / (50/40) + (50/v) = 50
=> 2 = (50/40) + (50/v)
=> v =4/3 x 50
=> 200/3 km/h
=> 66.66 km/h
Average speed is a measure of the overall rate of motion of an object over a certain time period. It is calculated by dividing the total distance traveled by the time taken to cover that distance. It is expressed in units such as meters per second, miles per hour, or kilometers per hour. Average speed is different from instant speed, which is the speed of an object at a particular moment in time.
Average speed is commonly used in physics, transportation, and sports to determine the performance of an object or system. For example, in transportation, the average speed of a car can be calculated by dividing the total distance traveled by the time it took to cover that distance. In sports, the average speed of a runner or swimmer can be determined by measuring the distance covered and the time taken to complete the race.
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va 1500-nf capacitor with circular parallel plates 2.0 cm in diameter is accumulating charge at the rate of 38.0 mc/s at some instant in time. what will be the induced magnetic field strength 10.0 cm radially outward from the center of the plates? what will be the valuc of the field strength after the capacitor is fully charged?
After the capacitor is fully charged, the current will be zero, and the magnetic field strength will be zero as well.
Magnetic field strength, also known as magnetic intensity or magnetic field intensity, is the portion of a material's magnetic field that is caused by an external current and is not intrinsic to the material itself.
It is denoted by the vector H and is measured in amperes per metre.
The magnetic field strength produced by a charged capacitor can be calculated using Ampere's law:
[tex]\vec{B} = \frac{\mu_0 I}{2\pi r}[/tex]
where \mu_0 is the permeability of free space,
I is the current flowing through the capacitor, and
r is the radial distance from the centre of the plates.
At the instant when the capacitor is accumulating charge at a rate of 38.0 mc/s,
The magnetic field strength at a radial distance of 10.0 cm can be calculated as:
[tex]B = \frac{\mu_0 I}{2\pi r} \\= \frac{\mu_0 \cdot 38 \times 10^{-6}}{2\pi \cdot 0.1} \\= 2.41 \times 10^{-7} \text{ T}[/tex]
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The moon goes through a cycle of phases. This occurs because as the moon orbits Earth, different parts of the side of the moon illuminated by the sun face toward Earth. Select all of the correct statements from the following list.
a. Since a full moon occurs when the moon is on the opposite side of Earth as the sun, it is only visible at night.
b. Quarter phases occur between the new and full phases.
c. The moon orbits eastward around Earth once every 29.53 days.
d. The moon's phase changes because the moon rotates, causing differing parts of the side illuminated by the sun to face Earth.
e. Lunar eclipses happen infrequently—usually once every few years or so.
f. During the new phase, no sunlight reaches the side of the moon facing Earth.
g. The lunar phase changes as the moon passes in and out of Earth's shadow.
No sunlight hits the portion of the moon that faces Earth during the new phase. Between new and complete phases are quarter phases.
What is Earth called?Contrary to widespread opinion, Earth lacks a globally recognized name. A common misunderstanding of the earth's natural scientific name is "Terra."
What is planet Earth?Our own planet, Earth, is a world unto itself. Earth, the fourth from the sun, is the only planet in the known cosmos where the presence of life has been established. With a 3,959-mile radius, Earth is the fifth-largest planet within our solar system and the only one whose surface is known to have liquid water.
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what was its speed when its height was half that of its starting point? what wasa roller coaster starts from rest at its highest point and then descends on its (frictionless) track. its speed is 20 m/s when it reaches ground level.its speed when its height was half that of its starting point? 17 m/s 10 m/s 7.1 m/s 14 m/s
The roller coaster possesses only potential energy when it begins motion from rest at its greatest point, which is equal to 21.2ms2 (rounded to the next decimal point).
What is the definition of potential energy?Potential radiation is a term that stored energy that depends on the interactions between various system elements. A spring's potential energy rises when it is stretched or squeezed. A steel ball does have more potential energy if it is lifted just above ground аѕ opposed to dropping to the ground.
What three types of potential energy are there?Stones perched on a cliff's edge have potential energy. If the stones fall, the potential energy would be transformed into kinetic energy. Because they have the ability to fall to the ground, tree branches high in the tree carry potential energy. We consume chemical potential energy in our food.
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a 1000-kg car traveling with a speed of 25 m/s skids to a stop. the car experiences an 8000 n force of friction. determine the stopping distance of the car
The required stopping distance of the car when mass, speed and force experienced are given is calculated to be 39.1 m.
The car's mass is said to be 1000 kg.
The speed of the car is calculated to be 25 m/s.
The car experiences 8000 N of frictional force.
We need to find out the stopping distance of the car.
Initially, the car's height is 0, so the potential energy of the car is zero.
Kinetic energy of the car is 1/2 × 1000 × 25² = 312500 J.
Finally, potential energy of the car is 0 and kinetic energy of the car is zero.
The work done is,
W = F d cos 180° = -8000 d
From the principle of conservation of energy,
TME i + W ext = TME f
where,
TME i is total mechanical energy initial
TME f is total mechanical energy final
W ext is work done external
After placing the values into the equation above,
312500 + (-8000 d) = 0
8000 d = 312500
d = 39.1 m
Thus, the stopping distance of the car is 39.1 m.
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T/F the anti-lock brake system engages every time the driver applies the brakes.
Every time the driver presses the brakes, the anti-lock brake system activates. ABS was initially created for boats. If the brake pulsates while ABS is active.
When the driver applies the brakes, does the anti-lock brake system activate?
Every time the driver presses the brakes, the anti-lock brake system activates. When ABS is engaged, a grinding sound is typical. ABS enables you to brake as hard as possible while still steering. Your ABS will not function properly if a warning light illuminates.
What are the functions of anti-lock brakes?By giving your tires some traction again in an emergency, anti-lock braking systems (ABS) assist you in steering. How It Works: aids in preventing wheel locking, potentially enabling the motorist to maneuver to safety. What It Isn't Able To Do The stopping distance may not be shortened; the pedal may shake or push back; this is okay.
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what force besides gravity controls the orbit of a planet or moon?
Explanation:
Inertia. The physical law that states that objects in motion have a tendency to remain in motion also plays a role in keeping the planets in orbit.
four charged particles are moving directly above or below a horizontal current-carrying conductor at the instant shown above. the signs of the charges and direction of motion of the charges are indicated in the figure. particle a is moving horizontally out of the page, particle b is moving vertically upward, particle c is moving horizontally into the page, and particle d is moving horizontally to the right. which two charged particles will not experience a magnetic force at this instant? select two answers. responses
Particle A and Particle D will not experience a magnetic force at this instant when four charged particles are moving directly above or below a horizontal current-carrying conductor.
A charged particle goes in a straight line if its velocity is parallel to the magnetic field and there is no net force acting on it. According to Fleming's Left Hand Rule, the magnetic field will be upward because the magnetic force is directed northward. If a charged particle moves parallel to the magnetic field, there won't be any force acting on it as it passes through the field. When the magnetic field and velocity are in the same direction, the magnetic force, which is proportional to their cross product, is zero.
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ball a is thrown upward with a velocity of 19.6 m/s. two seconds later ball b is thrown upward with a velocity of 9.8 m/s. which ball is first to return to the thrower's hand?
Both balls return to the thrower's hand at the same time.
To determine which ball returns first to the thrower's hand, we need to find the time it takes for each ball to reach its maximum height and then fall back down to the thrower's hand.
Let's consider ball A first. The initial vertical velocity of ball A is 19.6 m/s and the acceleration due to gravity is -9.8 m/s².
Using the equation of motion:
v = u+ (a × t)
where h is the height, v is the final velocity, u is the initial velocity, t is time, and a is acceleration,
we can find the time it takes for ball A to reach its maximum height:
v = 0 m/s (∵ at max. ht velocity becomes zero)
u = 19.6 m/s
a = -9.8 m/s²
∴ 0 = 19.6 + (-9.8 × t)
∴ t = 2 sec
So, ball A reaches its maximum height 2 seconds after being thrown, and comes back down 2 seconds later i.e., 4 seconds after being thrown.
Next, let's consider ball B. The initial vertical velocity of ball B is 9.8 m/s and the acceleration due to gravity is -9.8 m/s^2. We can find the time it takes for ball B to reach its maximum height,
Using the same equation of motion:
v = u+ (a × t)
where h is the height, v is the final velocity, u is the initial velocity, t is time, and a is acceleration,
we can find the time it takes for ball B to reach its maximum height:
v = 0 m/s (∵ at max. ht velocity becomes zero)
u = 9.8 m/s
a = -9.8 m/s²
∴ 0 = 9.8 + (-9.8 × t)
∴ t = 1 sec
So, ball B reaches its maximum height 1 second after being thrown, and comes back down 1 second later i.e., 2 seconds after being thrown.
∵ ball B was thrown 2 seconds after ball A. the actual total time taken by ball B to reach back to the thrower's hand is (2+2)= 4 seconds.
So, both balls fall back to the thrower's hand at the same time which is 4 seconds after ball A is thrown.
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Answer:
Both balls return to the thrower's hand simultaneously.
EXPLANATION:
To decide which ball returns to the thrower's hand first, we must calculate the time it takes each ball to reach its greatest height and then fall back down to the thrower's hand.
Let's start with ball A. Ball A has an initial vertical velocity of 19.6 m/s and a gravitational acceleration of -9.8 m/s2.
Using the motion equation:
v = u+ (a × t)
where h denotes height, v denotes ultimate velocity, u denotes starting velocity, t denotes time, and a denotes acceleration,
We can calculate how long it takes ball A to reach its maximum height:
v = 0 m/s (the maximum velocity is zero)
u = 19.6 m/s
a = -9.8 m/s²
∴ 0 = 19.6 + (-9.8 × t)
∴ t = 2 sec
So, ball A achieves its maximum height 2 seconds after being thrown and returns to earth 2 seconds later, or 4 seconds later.
Let's go on to ball B. Ball B has an initial vertical velocity of 9.8 m/s and a gravitational acceleration of -9.8 m/s2. We can calculate the time required for ball B to reach its maximum height.
Using the same equation of motion as before:
v = u+ (a × t)
where h denotes height, v denotes ultimate velocity, u denotes starting velocity, t denotes time, and a denotes acceleration,
We can calculate how long it takes for ball B to reach its maximum height:
v = 0 m/s (the maximum velocity is zero)
u = 9.8 m/s
a = -9.8 m/s²
∴ 0 = 9.8 + (-9.8 × t)
∴ t = 1 sec
So, ball B achieves its maximum height one second after being thrown and returns to earth one second later, or two seconds later.
Ball B was launched two seconds after ball A. Ball B's actual total time to return to the thrower's hand is (2+2)= 4 seconds.
As a result, both balls return to the thrower's hand at the same moment, 4 seconds after ball A is thrown.
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Most electromagnets have a core?
A) Why is iron usually used for the core
B) What would happen if you used steel instead
Iron has strong ferromagnetic properties and that is why it is used as core in electromagnets. However, iron can easily be demagnetized but steel cannot. Steel forms permanent magnet.
What is an electromagnet ?An electromagnet is a material which can form a magnetic field in the presence of an electric field. The magnetic field strength depends on the nature of the material as well the strength of the electric field.
Iron is a metal exhibiting strong ferromagnetic properties. The magnetic field lines can align along the applied field and it can be lost when the applied field is removed.
Therefore, iron can be demagnetized when the switch is off. If we use steel instead it would be very difficult to demagnetize and will form a permanent magnet.
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A circuit with a 70 V battery, a 55 Ω resistor, a resistor with 0.2 A across it, and another 55 Ω resistor in series. What is the resistance of the unknown resistor?
Answer:
350 Ω
Explanation:
The resistance of the unknown resistor can be found by using Ohm's Law, which states that the voltage (V) across a resistor is equal to the current (I) flowing through it multiplied by the resistance (R). We know the voltage (70 V) and the current (0.2 A) for the circuit, so we can find the resistance of the unknown resistor as follows:
V = IR
70 V = 0.2 A * R
R = 70 V / 0.2 A
R = 350 Ω
So the resistance of the unknown resistor is 350 Ω.
a lion can produce a roar with a sound intensity level of 114 db at a distance of 1.00 m . what is the sound intensity level at a distance of 4.00 m ? assume that intensity obeys the inverse-square law.
A lion can produce a roar with a sound intensity level of 114 db at a distance of 1.00 m . The intensity level at 4 m from the lion is 16 DB.
Though it is a unit of pressure rather than sound, the decibel, or dB, is frequently used to measure sound levels. A decibel is a logarithmic unit that expresses a physical quantity's relationship to a reference level.
The square of the distance has an inverse relationship with the decibel intensity.
I₂ = D₁²
I₁ D₂²
The sound intensity level at one meter is 114 dB.
I₂ = 1²
114 4²
I₂ = 16 Db
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an earth satellite moves in a circular orbit 769 km above the earth's surface. the period of the motion is 81.1 min. what is the magnitude of the centripetal acceleration of the satellite in m/s2?
The magnitude of the centripetal acceleration of the satellite is [tex]8.162 m/s^2.[/tex]
Centripetal acceleration: What is it?Centripetal acceleration is the term used to describe the speed of a body moving in a circular path. Since velocity is a vector quantity (it has a magnitude, a speed, and a direction), it varies as a body moves in a circular motion, causing acceleration. The circle's center is the direction in which the acceleration is pointed. Meters per second squared are used to measure centripetal acceleration. This acceleration is brought on by a force known as centripetal force, which is also pointed in the direction of the circle's center.
Given, h = 769 km
[tex]Rearth = 6.38 x 10^6m\\Rtotal = 6.38 \times 106769 \times 10^3 \\Rtotal = 4.90 \times 10^6 \\T = 81.1 \times 60 = 4866 sec \\V = 2\pi \times r \\V = 2\times 4.90 \times 10 4866 \\Linear Velocity, V = 6,324 m/s \\[/tex]
Now, the Magnitude of Centripetal Acceleration = Total
(6324)2 Magnitude of centripetal acceleration = 4.90 x 10
Magnitude of centripetal acceleration =[tex]8.162 m/s^2[/tex]
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5) choose the best answer. using the knowledge about the moon phases, how many spring and neap tides occur each month on average?
Instead, the phrase refers to the idea of the tide "springing forth." Regardless of the season, spring tides happen twice each lunar month.
What moon phases correspond to the neap and spring tides?When the Moon is full or new, when the Sun, Moon, and Earth are in alignment, spring tides always occur. Neap tides happen at the first and final quarter phases of the Moon, when the Moon is perpendicular to the Sun due to its orbit around Earth.
Most coastal areas have two high tides and two low tides each day, however other localities only experience one high tide and one low tide each day. Usually, the highs and lows aren't equal.
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what are the different kinds of twilight we experience each day?
There are three types of twilight which are defined based on the position of the sun below the horizon and the amount of light in the sky are civil twilight, nautical twilight, and astronomical twilight. The exact timing of the different types of twilight can vary depending on the observer's location, latitude, and the time of year.
What is twilight?Twilight is the period of time each day when the sun is below the horizon but there is still some natural light in the sky. This occurs just before sunrise and merely after sunset.
When does nautical twilight happen?Nautical twilight occurs when the sun is between 6 and 12 degrees below the horizon. During nautical twilight, the sky is not bright enough for outdoor activities but is bright enough for navigation at sea.
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relative velocity. of airplanes a and b are moving southwest with speed , and north?west with speed , respectively, what is the relative velocity of b with respect to a?
The velocity of the an object in relation to another observer is referred to as its relative velocity. It is the pace at which the relative positions of two objects change over time.
What is relative velocity used for?When compared to another observer, an object's relative velocity is its speed. It is the pace at which the relative position with one thing in relation to another object changes over time.
Give an example of relative velocity.It combines an object's direction and speed. However, when we discuss relative velocity, it indicates that we're talking about velocity of one item in relation to another. And what exactly is relative velocity? An object's relative velocity is its speed in relation to another object, B.
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which of the six numbered features represents emission lines?
The first line represents the emission lines of the spectrum.
In the electromagnetic spectrum, a line pattern is observed. This line pattern is something that is unique for every element and it is represented by the dip in the energy gap of the electrons revolving in the atoms.
Here, in the graph pattern attached, out of the six numbered lines, the line number one represents the emission lines because the electron are releasing their energy and going back to there own ground state level.
This emission when seen on the screen, it will be observed a unique pattern of the bright lines for that particular element.
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consider a battery with an internal resistance of 4.0 ohms connected to a 16-ohm and a 20- ohm resistor in series. the current in the 20-ohm resistor is 0.3 amperes. what is the emf of the battery?
The emf of the battery is 12 Volt. The result is obtained by using the formula for electromotive force.
How to find the electromotive force (emf)?Electromotive force can be expressed as
E = V + Ir
E = I (R + r)
Where
V = potential differenceI = currentR = load resistancer = internal resistanceA battery with an internal resistance of 4.0 ohms connected to a 16-ohm and a 20- ohm resistor in series. The current in the 20-ohm resistor is 0.3 amperes. Find the emf of the battery!
We have R₁ = 16 Ω and R₂ = 20 Ω in series. The total load resistance is
R = R₁ + R₂
R = 16 + 20
R = 36 Ω
The current along the series circuit is the same. So, we have I = 0.3 A.
The electromotive force will be
E = I (R + r)
E = 0.3 (36 + 4.0)
E = 0.3 (40)
E = 12 Volt
Hence, the battery has the electromotive force of 12 Volt.
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astronomers observe a typical star using a telescope and a spectrometer. they will see: a. a continuous spectrum b. an emission spectrum c. an absorption spectrum d. a doppler shift e. more than one of the above
Astronomers observe a typical star using a telescope and a spectrometer. they will see an absorption spectrum .
Absorption spectroscopy is the name given to spectroscopic methods that assess how much radiation is absorbed as a function of frequency or wavelength when it interacts with a substance. The sample takes in energy from the emitting field, or photons. The absorption spectrum is a fluctuation in the intensity of the absorption that varies with frequency. The entire electromagnetic spectrum is used for absorption spectroscopy.
An analytical chemistry instrument called absorption spectroscopy is used to find out whether a specific drug is present in a sample and, frequently, to quantify how much of it there is. Analytical applications frequently use infrared and ultraviolet-visible spectroscopy. Additionally, astronomical spectroscopy, remote sensing, and studies of molecular and atomic physics all make use of absorption spectroscopy.
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a 190-pound man has a total foot imprint area of 72 in2. determine the pressure exerted by this man on the ground if he stands on both feet.\
The man on the ground would be applying 2,625 psi of pressure (pounds per square inch).
To determine this, divide the man's weight (190 lbs) by the total area of his footprint (72 in2).
190 ÷ 72 = 2,625 psi
Pressure: The amount of force delivered perpendicularly to an object's surface in relation to its area is known as pressure. Its abbreviation is "p" or "P." The IUPAC suggests using a lower-case p when referring to pressure. However, many people use the capital P. The appropriate use of P vs. p relies on the field in which one is employed, the proximity of other symbols denoting quantities like power and momentum, as well as writing style.
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wave x travels eastward with frequency f and amplitude a. wave y, traveling in the same medium, interacts with wave x and produces a standing wave. which statement about wave y is correct?
The statements correct about wave x travels eastward with frequency f and amplitude a. And wave y, traveling in the same medium, interacts with wave x and produces a standing wave is wave Y must have a frequency of f, an amplitude of A, and be traveling westward (option 4)
When waves of the same frequency and amplitude moving in opposite directions collide, standing waves are produced.
It has areas (known as nodes) where the amplitude is always zero and areas (known as antinodes) where the amplitude changes a great deal. The distance between two consecutive nodes or antinodes can be used to calculate the length of a standing wave.
The question is incomplete, it should be:
Wave x travels eastward with frequency f and amplitude a, wave y, traveling in the same medium, interacts with wave x and produces a standing wave. Which statement about wave y is correct?
The question is incomplete, it should be:
(1) wave Y must have a frequency of f, an amplitude of A, and be traveling eastward.
(2) wave Y must have a frequency of 2f, an amplitude of 3A, and be traveling eastward.
(3) wave Y must have a frequency of 3f, an amplitude of 2A, and be traveling westward.
(4) wave Y must have a frequency of f, an amplitude of A, and be traveling westward.
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What can occur when air rises in a low pressure system?
When air rises in a low-pressure system, it can lead to the formation of clouds and precipitation, such as rain or snow. The rising air also cools and condenses, releasing latent heat, which can further contribute to the development of the storm.
What happens in a low-pressure system?A low-pressure system is a weather pattern characterized by a region of lower atmospheric pressure compared to the surrounding areas. It is often associated with unsettled and stormy weather.
How are clouds formed?Clouds are formed when moist air rises and cools, causing water vapour to condense into tiny water droplets or ice crystals. This process occurs when the temperature of the air decreases, either because it is rising, or because it is mixing with cooler air.
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calculate the amount of power supplied by the signal generator, vg1, and the amount of power dissipated in each of the two resistors in the circuit at 5 khz.
The power can be calculated by the formula P resistor = IV = I2R = / (4R).
The voltage across each resistor in the circuit can be determined using Ohm's law:
V = IR
where V is the voltage, I is the current, and R is the resistance.
This allows us to compute the power dissipation in each resistor as follows:
P = IV = I 2 R + V 2 R
We can assume that the voltage across each resistor is half of the overall voltage in the circuit since the resistors are similar. The voltage of the signal generator, vg1, is the same as the overall voltage in the circuit.
Consequently, vg1 / 2 is the voltage across each resistor.
The circuit's current can be calculated using Ohm's law:
I = V / R = vg1 / (2R)
R stands for each resistor's resistance.
You may calculate the power provided by the signal generator, vg1, by using:
IV = vg1 * I = vg12/P supplied (2R)
The power dissipation in each resistor can be calculated as follows:
P resistor = IV = I2R = / (4R)
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Describe the behaviour of light that enables magnifying lenses and conttact lenses to bend light rayd
The nature of light that enable enables magnifying lenses and contact lenses to bend light ray is called refraction.
What is refraction ?Refraction is an optical phenomenon causing the light ray to bend from its straight way at the edge of objects. When light passing from one medium to the other of different density, light ray will bend at the boundary of the mediums.
The measurement of this bending of light is called refractive index of the medium. Refractive index of a medium is the ratio of the speed of light in the medium to the speed of light in air.
Magnifying lenses and contact lenses bend the light ray and make the image more closer than they appear because, bending of light makes light rays seemed to be coming from the upper plane above the original.
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how many g's of acceleration does the astronaut experience when the device is rotating at top speed? each 9.80 m/s2 m / s 2 of acceleration is 1 g.
The number of g's of acceleration that the astronaut experiences when the device is rotating at top speed cannot be determined from the information given. The information provided only defines that each 9.80 m/s^2 of acceleration is equivalent to 1 g, but the actual acceleration experienced by the astronaut is not specified.
While on the moon, astronauts endure microgravity, but they also experience hypergravity (up to 3.2 g) during takeoff. The strongest gravitational forces, up to 9 g, are felt by their Earth-based friends, jet pilots. The time required for a growth to change its tangential velocity is 1.3 seconds. Due to the fact that it starts at rest, the initial velocity is zero.
Discover the tangential velocities at the start and end. If you're having problems, find the angular velocity and acceleration, then multiply those values by the radius. Your acceleration will be determined by the velocity change throughout the passage of time.
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as you look out of your dorm window, a flower pot suddenly falls past. the pot is visible for a time t , and the vertical length of your window is lw . take down to be the positive direction, so that downward velocities are positive and the acceleration due to gravity is the positive quantity g . from what height h above the bottom of your window was the flower pot dropped?
The height h above the bottom of your window was the flower pot dropped is = 1/2gt² - lw.
What is acceleration?Acceleration is rate of change of velocity with time. Due to having both direction and magnitude, it is a vector quantity. Si unit of acceleration is meter/second² (m/s²).
Acceleration due to gravity is = g
Time taken to fall is = t
The length of the window is = lw
Hence, the height h above the bottom of your window was the flower pot dropped is
= distance travelled by the pot - the length of the window
= 1/2gt² - lw.
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