B. They are rearranged.
The First Law of Thermodynamics states that matter and energy can not be created or destroyed.
Answer:
The maximum height the box will reach is 1.72 m
Explanation:
F = k·x
Where
F = Force of the spring
k = The spring constant = 300 N/m
x = Spring compression or stretch = 0.15 m
Therefore the force, F of the spring = 300 N/m×0.15 m = 45 N
Mass of box = 0.2 kg
Work, W, done by the spring = and the kinetic energy gained by the box is given by KE =
Since work done by the spring = kinetic energy gained by the box we have
= therefore we have v = = = = 5.81 m/s
Therefore the maximum height is given by
v² = 2·g·h or h = = = 1.72 m
the answer is 0.284 lb/in3
Gravitational energy is a form of potential energy because it is dependent on the mass of an object and needs to be calculated for the specific object.