3 years ago

By what factor does the jinetic energy of a car change when its speed is tripled?

Physics

1 answer:

Travka [436]3 years ago

7 0

Answer:

Explanation:

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The electrical resistance of a wire varies directly as its length and inversely as the square of its diameter. a wire with a len

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The electrical resistance of the wire is proportional to its length L and inversely proportional to the square of its diameter, $1/r^2$ .

The length of the wire in the problem is changed from 200 inches to 500 inches, so the new length is 2.5 times the initial length:
$\frac{L_1}{L_0}= \frac{500}{200}=2.5$
the diameter of the wire is not changed, so the new electrical resistance must be 2.5 times the original value:
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m1v + m2× 0 = (m1 + m2) V

V = m1v/(m1 + m2).

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3 years ago

A biome that experiences the seasons of winter, spring, summer, and fall, and non-extreme temperatures is likely to be a(n) ____

Rudiy27

The answer is a temperate biome.

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Afina-wow [57]

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