The unit for measuring electric power is the A. volt. B. ampere. C. watt. D. ohm.
1 answer:
Answer:
(C) Watt
Explanation:
The unity of power is watt
Power is nothing but the rate of change of energy with respect to time
So power is given by , here W is work done and t is time
We know that unit of work done is joule and unit of time is sec
So unit of power is J/sec which is called watt
So option (c) will be correct option
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Answer:
Where represent the force for each of the 5 cases
presented on the figure attached.
Explanation:
For this case the figure attached shows the illustration for the problem
We have an inverse square law with distance for the force, so then the force of gravity between Earth and the spaceship is lower when the spaceship is far away from Earth.
Th formula is given by:
Where G is a constant
represent the mass for the earth
represent the mass for the spaceship
represent the radius between the earth and the spaceship
For this reason when the distance between the Earth and the Spaceship increases the Force of gravity needs to decrease since are inversely proportional the force and the radius, and for the other case when the Earth and the spaceship are near then the radius decrease and the Force increase.
Based on this case we can create the following rank:
Where represent the force for each of the 5 cases
presented on the figure attached.
