The gravitational acceleration on the moon is Smoon=1.62 m/s2. How does the potential energy of a 15 kg object at 4 m above the surface of the moon compare to
that of the same object at the same height above the surface of Earth?
UMoon > UEarth
Not enough information
UMoon = UEarth
UMoon UEarth

The dot diagram represents the motion of the motorcycle as it moves from left to right

Atruck driver is attempting to deliver some furniture. first, he travels 8 km east, and then he turns around and travels 3 km west. finally, he turns again and travels 13 km to his destination. what is the drivers distance

Cyclotrons are widely used in nuclear medicine for producing short-lived radioactive isotopes. these cyclotrons typically accelerate h- (the hydride ion, which has one proton and two electrons) to an energy of 5 mev to 20 mev. this ion has a mass very close to that of a proton because the electron mass is negligible—about 1 2000 of the proton’s mass. a typical magnetic field in such cyclotrons is 1.9 t. (a) what is the speed of a 5.0-mev h-? (b) if the h- has energy 5.0 mev and b = 1.9 t, what is the radius of this ion’s circular orbit?