Relative motion is the calculation of the motion of an object with regard to some other moving object.
Power is the amount of energy consumed per unit time. Having no direction, it is a scalar quantity. <span>As is implied by the equation for </span>power<span>, a unit of </span>power <span>is equivalent to a unit of work divided by a unit of time. The formula would be as follows:
P = W/t
We calculate as follows:
500 W = 15000 J / t
t = 30 s</span>
Positive - Friction allows us to create heat in a desperate situation, like being lost in the woods. If we didn't have friction, we would probably freeze to death.
Negative - Friction can also cause unwanted fires, such as forest fires. If friction didn't exist, we wouldn't have these.
Answer:
Explanation:
Given
initially steam is at 
and converted to 
ice
Let m be the mass of steam
latent heat of fusion and vaporization for water is
Heat required to convert steam in to water at
Heat required to lower water temperature to 
Heat required to convert water to ice at is
So this energy is equal to kinetic energy of bullet of mass m moving with velocity v
For the answer to the question above asking <span>Which is NOT part of the equation for angular momentum? The answer is the last one among the given choices above which is D. Force
I hope my answer helped you. Have a nice day!</span>
