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A nickel has a mass of about 5 grams. If all of this mass could be converted to energy, how many Hiroshima sized bombs would this be? (Little Boy released about 63 TJ of energy)
You then maintain a constant speed of 65.0 mph. You pass the patrol car 16 seconds after you at first applied the brakes and are relieved that he doesn't pull out after you. How far away was the highway patrol car when you first saw it.
A farsighted person can read printing as close as 25.0 cm when she wears contacts that have a focal length of 44.6 cm. What is the maximum angular magnification that the magnifying glass can provide for her
In a classical model of the hydrogen atom, the electron orbits a stationary proton in a circular orbit
A point P is on a rim of a wheel of radius 2.0m. At time t=0 wheel is at rest and P is on the x-axis. The wheel undergoes a uniform angular acceleration of 0.01 rad/s2 about the center O. Find out the time t, when P returns to an original position on..
During a violent storm, a car is struck by a failing high-voltage wire that puts an excess charge of -850 mircoC on the metal car. a) how much of this charge is on the inner surface of the car? b) how much is on the outer surface of the car?
What is change in the car's kinetic energy KEf - KEo from A to B. How fast will the father be moving.
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. What is the maximum rotational speed at which the riders will not slide up the walls of the ride
Light of wavelength 470 nm in air enters a fishbowl filled with water, then exits by the crown-glass wall of the container. Find the wavelengths of the light (a) in the water and (b) in the glass.
A photon has an energy equal to the kinetic energy of an electron with speed, u, which may be close to the speed of light, c. Calculate the ratio of the wavelength of the photon to the wavelength of the electron
A 2 200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.20 m before coming into contact with the top of the beam, Find the magnitude upwards
Estimate the average power of a water wave when it hits the chest of an adult standing in the water at the seashore
assume you are standing on a train, both feet together, facing a window. The front of the train is to your left. The train starts moving forward.
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