For Plato, K represents the stiffness of the spring. Hope this helps!
Answer:
The specific heat of aluminum is greater.
Explanation:
It lost the most heat.
Newton's 2nd law of motion: Force = (mass) x (acceleration)
If you want to move a 7-kg object with an acceleration of 4 m/s²,
then you will need to push it with (7 x 4) = 28 newtons of force.
