Answer:
They could damage hearing
Explanation:
They can cause physical harm which is a risk
A wave that transfers energy through vibrating In a medium
Answer:
The answer is A because it is a resource that takes many many years to make more of and we cannot make it ourselves
The work done by the friction force to stop the player is equal to his loss of kinetic energy:

The work done by the friction force is the magnitude of the force

times the distance covered by the player, d:

The loss in kinetic energy is simply equal to the initial kinetic energy of the player, since the final kinetic energy is zero (the player comes to rest):

Substituting into the first equation, we get:

from which we find d, the distance covered by the player: