Answer:
a) , b) , c)
Explanation:
a) The change in the gravitational potential energy of the marble-Earth system is:
b) The change in the elastic potential energy of the spring is equal to the change in the gravitational potential energy, then:
c) The spring constant of the gun is:
From the moment the ball leaves your hand until the moment it hits the ground its acceleration is constant. The acceleration is 9.8 m/s^2 downward. That's the acceleration of gravity on Earth.
<span>Spring tides have higher high tides and lower low tides when the moon, sun, and earth are aligned in a row. Why does this occur?
A.gravitational pull is stronger
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