Answer:
Work done is equal to 125.44 J
Explanation:
We have given mass of the student m = 80 kg
Distance moved d = 4 m
Acceleration due to gravity 
Coefficient of kinetic friction 
So normal force exerted by student 
We know that work done is equal to multiplication of force and distance
So work done 
The answer is "the product of the object's moment of inertia and the object's angular velocity.
50% water is fresh into Earth
Answer:
D
Explanation:
Because kinetic energy do have more than potential energy: kinetic energy is when a object is moving. Potential energy is when something is at rest and has no movement what so ever
power=voltsxamps=watts.
12=3xamps
4 amps
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A. To increase the current, decrease the resistance.
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r=v/i = 53/7
