A astronaut has a mass of 97.0 kg counting his suit and tools. He accidently loses his safety line while drifting in space 4.00 meters from the space shuttle. To get back, he removes a 5.3 kg tool from his belt and throws it at 16.0 m/s away from the shuttle. How fast will he move toward the shuttle?

Look at the potential energy diagram for a chemical reaction. which statement correctly describes the energy changes that occur in the forward reaction?

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?