Answer:

Explanation:
From the question we are told that:
Mass 
Radius
Generally the equation for inertia is mathematically given by



Answer:
If the height is in metres, the speed is 24.25m/s
Answer:
A heat engine is a device that converts internal energy into work. Internal energy is increased by the addition of heat. The efficiency of a heat engine is a measurement of how efficiently it works. Efficiency compares the amount of useful energy extracted from a process to the total energy input. The heat engine will be more efficient if the percentage is higher.
Explanation:
Answer:
A. If two objects collide, each object exerts a force in the same direction as the other.
Explanation: