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JulijaS [17]
3 years ago
10

The power is inversely proportional with time

Physics
1 answer:
trapecia [35]3 years ago
8 0

Answer:

True

Explanation:

Given that Power whose unit is Watt equates to one joule of work per second. It implies that Power is directly proportional to the work done and inversely proportional to the time to do the work.

Therefore, in this case, the right answer to the question is that it is TRUE that the power is inversely proportional with time

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a snooker ball travels 4 meters, diagonally across the table it travels at a speed of 5m/s. calculate how long the ball is trave
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According to the momentum principle, the change in momentum of an object equals the impulse, which depends on______
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Answer: The momentum principle depends on MASS and VELOCITY.

Explanation:

The momentum principle states that net force changes the the momentum of an object where momentum is the product of the MASS of the body and it's VELOCITY.

Thus, momentum = mass(kg) ×velocity( m/s)= kgm/s ( derived unit)

Also to determine the rate of change of momentum;

Mass=m, initial velocity =u, final velocity = V and time =t

Initial momentum = mu

Final momentum = mv

Change in momentum = mv - mu

= m( v- u)

Rate of change of momentum=

m( v -u)/t --> equation 1

But V = u + at

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Substitute for v -u/ t in equation 1

F = Kma, where k is constant and has the value of 1.

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3 years ago
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