Work needed = 23,520 J
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Further explanation
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Given
height = 12 m
mass = 200 kg
Required
work needed by the crane
Solution
Work is the transfer of energy caused by the force acting on a moving object
Work is the product of force with the displacement of objects.
Can be formulated
W = F x d
W = Work, J, Nm
F = Force, N
d = distance, m
F = m x g
Input the value :
W = mgd
W = 200 kg x 9.8 m/s²x12 m
W = 23520 J
Force of Gravity depends on:
1) Masses of the object
2) Distance between the object
Hope this helps!
Explanation:
its the minimum amount of energy required to remove the most loosely bound electron
The dependent variable is the amount of time it takes for the water to boil. This variable is dependent because is depends on the amount of salt.