If the potential energy of the ball is 71 joules and it has a mass of 4.6 kg, how fast will the object be going right before it hits the ground? Round your answer to 1
place after the decimal.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

An electromagnet is a device in which moving electric chargers in a coil of wire create a magnet.whats one advantage of using electromagnetic in devices

An astronaut in space cannot use a scale or balance to weigh objects because there is no gravity. but she does have devices to measure distance and time accurately. she knows her own mass is 77.4 kg , but she is unsure of the mass of a large gas canister in the airless rocket. when this canister is approaching her at 3.50 m/s , she pushes against it, which slows it down to 1.30 m/s (but does not reverse it) and gives her a speed of 2.60 m/s . what is the mass of the canister?