Answer:
The mass of the volleyball is 0.32 kg.
Explanation:
Given that,
Initial speed of the ball, u = 4.2 m/s
Final speed of the ball, v = -24 m/s
The impulse delivered to the ball by the player is -9.3 kg-m/s.
To find,
Mass of the volleyball.
Solution,
The change in momentum of the volleyball is equal to the impulse delivered to the ball. It is given by :
m = 0.32 kg
So, the mass of the volleyball is 0.32 kg.
A simple machine can make work easier by reduce the amount of energy needed to perform a task, therefore, B. it magnifies the potential energy so that the kinetic energy is greater is the correct answer:)
Answer:B
Explanation: I think this is the answer
It's solubility. Solubility is a measure of the ability of a solute to dissolve in a solvent; maximum amount of solute that will dissolve in solvent at a specific temperature. Solute is substance being dissolved. Solvent is the substance that is doing the dissolving; the part of the solution that is present in the greatest quantity.
