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Aleks [24]
3 years ago
9

During a shock which lasts 10ms (0.01s), the voltage difference between the electrodes (so the drop in potential across all thre

e resistors in our model) is 1750V. 200J of energy are dissipated during the shock. What is the average power delivered
Physics
1 answer:
natta225 [31]3 years ago
5 0

Answer:

20000 W

Explanation:

Power: This can be defined as the rate at which energy is dissipated or used. The S.I unit of power is Watt(W).

The expression of power is given as,

P = E/t.............................. Equation 1

Where P = power, E = Energy, t = time.

Given: E = 200 J, t = 0.01 s

Substitute into equation 1

P = 200/0.01

P = 20000 W.

Hence the average power = 20000 W

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A car travels around a level, circular track that is 750m across. What coefficient of friction is required to ensure the car can
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The coefficient of friction must be 0.196

Explanation:

For a car moving on a circular track, the frictional force provides the centripetal force needed to keep the car in circular motion. Therefore, we can write:

\mu mg = m\frac{v^2}{r}

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