The force must be applied for motor to keep the package moving is 50 N.
<h3>What is force?</h3>
Force is the action of push or pull the object in order to make it move or stop.
Power is related to force and velocity as
P = F x v
150 W = F x 3 m/s
F =50 N
Thus, the force must be applied for motor to keep the package moving is 50 N.
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Answer:

Explanation:
Btu of British thermal unit is a unit of heat. The relation between btu/year and watts is given by :

So,
is equal to 11 kW. Hence, the correct option is (d).
Answer:
conduction.
Explanation:
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The answer is moderate intensity