Low-level nuclear waste can be disposed of in a landfill.
Answer:
1.53m
Explanation:
Given parameters:
Mass of box = 3kg
Gravitational potential energy = 45J
Unknown
Height of the box = ?
Solution:
To solve this problem;
Gravitational potential energy = mgh
m is the mass
g is the acceleration due to gravity
h is the height
45 = 3 x 9.8 x h
h = 1.53m
Using the formula F=ma
500N=50kg (a)
a= 10 m/s^2
A) it occurs when earth is between the sun and the moon
