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3 years ago

At full power, how long would it take for the car to accelerate from 0 to 58.0 mph ? neglect friction and air resistance.

Physics

1 answer:

Advocard [28]3 years ago

3 0

For the given problem, we calculate the required time by using the formula P = W/t.

P = [(1/2)mv_f^2 – (1/2)mv_i^2]/ t

The car accelerates from 0 -58 mph, so the power engine will be

P = (1/2) x m x 58^2 / t = 1682 m / t

According to the problem, the engine produces full power so the time required can be calculated as

420.5 m / 1.40 = 1682 m / t

t = 5.6 seconds

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Answer:

Part(a): the capacitance is 0.013 nF.

Part(b): the radius of the inner sphere is 3.1 cm.

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Part(a):

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Part(b):

Given the inner radius of the outer shell b = 4.3 cm = 0.043 m. Therefore, from equation (1), rearranging the terms,

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