Dockworker applies a constant horizontal force of 80.0 n to a block of ice on a smooth horizontal floor. the fric- tional force is negligible. the block starts from rest and moves 11.0 m in 5.00 s. (a) what is the mass of the block of ice? (b) if the worker stops pushing at the end of 5.00 s, how far does the block move in the next 5.00 s?

Use the data provided to calculate the gravitational potential energy of each cylinder mass. round your answers to the nearest tenth. 3 kg: kj 6 kg: kj 9 kg: kj

The least penetrating form of radiation is

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .