How much force is needed to stop a 80-kg football player if he decelerates at 5 m/s2

Object A has a mass of 12 g and a density of 3 g/cm Object B has a mass of 12 g and a density of 5 g/cmº. Which object has a greater volume and by how much?

Question 1 0/1 pts Africtionless cart is at rest on a tabletop and has a mass of 2.3 kg. It is tied by a massless string resting on a massless and frictionless pulley to a mass of 1.

How much heat energy is required to raise the temperature of 1 kilogram of steel by 10°C?

2) What are the directions of the velocity and acceleration of an object in uniform circular motion?

Electrical energy is the most useful form of energy. Is this statement a fact or an opinion? Explain.

What is a machine that continues to work without adding additional energy

Which figure shows a correct pattern of electric field lines? A. figure A B. figure B C. figure C D. figure D

A stone is thrown vertically upward with a speed of 24.0 ms. (a) How fast is it moving when it reaches a height of 13.0 m? (b) How much time is required to reach this height?

3 forces that you exert when riding a bike

The function carrying wire wrapped around an iron ore is called