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Solve the following question:
Question I: It takes 2.40 s for a small ball with a mass of 0.120 kg released from rest from a tall building to reach the ground. Calculate the height from which the ball is released.
Question II: If that ball had been released from the same height, but this time above the surface of the moon, how long would it have taken for the ball to hit the ground?
You must show your work in an efficient manner so I can understand it in clearly.
An object is dropped from rest from a height 3.2 × 10^6 mabove the surface of the earth. If there is no air resistance, whatis its speed when it strikes the earth? The acceleration of gravityis 9.81 m/s2 and the radius of the Earth is 6.37 × 10^6m.
A 1,000-W motor powers a hoist used to lift cars at a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
The highest-energy photons emitted by a hydrogen atom have an energy of 13.6 eV. Find the energy, in joules, of one of these photons
When an x-ray photon with wavelength = 0.070nm strikes an electron at rest, What is the maximum angle through which it may be scattered
What is the resistance of a lightbulb that has a rating of115 W? Assume the lightbulb is designed for use in an AC circuit with Vrms =120 V.
A grinding wheel of radius 0.370 m rotating on a frictionless axle is brought to rest by applying a constant friction force tangential to its rim. The constant torque produced with this force is 75.1 N· m. Discover the magnitude of the friction force..
A baseball is thrown with an initial velocity of 41.4m/s at an angle of 31.2 degree. Find the maximum height that the ball reaches using energy considerations
A ski tow operates on a 15.0o slope of length 300 meter. The rope moves at 12.0 km/h and provides power for 50 riders at one time, Find the power required to operate the tow
if the faucet has a constricted opening then the water may speed up there. but when it enters the hose which is larger
Now, as both pipes vibrate at their fundamental frequencies, the beat frequency of 17 Hz is heard. How many centimeters were cut off the end of the second pipe? The speed of sound is 333 m/s.
A 85 gram ice cube at 0°C is located in 730 gram of water at 22°C. Determine the final temperature of the mixture
consider a pulsar a collapsed star of extremely high density with a mass m equal to that of the sun 1.98 times 1030 kg
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