While discussing the results of a load test: technician a says that if a battery fails a load test but the volt-age rises above 12.4 volts when the load is removed, the battery should be replaced. technician b says that if a battery fails a load test but the voltage rises above 12.4 volts when the load is removed, the battery is able to hold charge. who is correct? a) techanican a b) technican b c) both a and b d) neither a norb

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Oxygen and hydrogen gas are at the same temperature t. what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?