Answer:
50% of it .
Explanation:
50% of it is illuminated by the Sun.
The net force is 12 N to the left.
A group of cells together
Explanation:
Given that,
Weight of the engine used to lift a beam, W = 9800 N
Distance, d = 145 m
Work done by the engine to lift the beam is given by :
W = F d

Let W' is the work must be done to lift it 290 m. It is given by :

Hence, this is the required solution.