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Two identical nickel balls are two meters apart from each other. The volume of the balls is 1 cm3. Assume someone can move one electron from each atom of ball A and give it to ball B.
Find the magnitude of electrostatic force between two nickel balls?
Find the magnitude of gravitational force between two nickel balls?
Determine how many electrons would need to be transferred in order to balance these two forces?
A football kicked off at an angle 20° from the ground reaches a maximum height of 4.7 m. What is the initial velocity of the kick.
1 why does the stroboscope appear to make the vibrations stop at certain frequencies? why does it appear to be two
A .200 kg plum bob is attached to a string and the string isconnected to the ceiling. How many cycles does it take for the plum bob to lose halfof its energy
An object initially at rest explodes in two fragments of masses 3.5 kg and 6.3 kg that move in diametrically opposite directions. find the internal energy of the explosion
when a 50-gram piece of aluminum at 100 degrees celsius is placed in water it loses 735 calories of heat while cooling
It takes a force of 80.0 N to compress the spring of a toy popgun 0.200 m to "load" a 0.180-kg ball. With what speed will the ball leave the gun
a rigid closed insulated container with a volume of 45 ft3 is filled with carbon dioxide at a pressure of 14.7 psia and
q1. two small insulating spheres with radius 7.50times10-2 m are separated by a large center-to-center distance of
A photon emitted as a hydrogen atom undergoes a transition from the n = 5 state to the n = 2 state. The energy of the ground state is 13.6 eV. Find the frequency of the emitted photon
The drawing shows a coin resting on the bottom of a beaker filled by an unknown liquid. A ray of light from the coin travels to the surface of the liquid and is refracted as it enters into the air.
a ski gondola is connected to the top of a hill by a steel cable of length 620 m and diameter 1.5 cm. as the gondola
53.53 J of heat are removed from a gas sample while it is being compressed by a piston that does 52.01 J of work. What is the change in internal energy of the gas
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