A ball is dropped from a height of 2.0m how long will it take this ball to reach the ground

Which of the following is not am example of a polymer? protein nylon kevlar concreta

What can you increase the strength of an electromagnet by

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?