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Stella [2.4K]
3 years ago
9

When does a magnet induce an electric current in a wire coil?

Physics
1 answer:
zhuklara [117]3 years ago
8 0

Answer:

B I believe

Explanation:

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Metals conduct heat and reduce the kinetic energy within the components that need to remain cool

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A juggler throws a bowling pin straight up with an initial speed of 8.20 m/s. How much time elapses until the bowling pin return
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1.68 s

Explanation:

From newton's equation of motion,

a = (v-u)/t.................................. Equation 1

Making t the subject of the equation

t =(v-u)g............................. Equation 2

Where t = time taken for the bowling pin to reach the maximum height, v = final velocity bowling pin, u = initial velocity of the bowling pin, g = acceleration due to gravity.

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Given: v = 0 m/s ( at the maximum height), u = 8.20 m/s, g = -9.8 m/s²

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t = -8.20/-9.8

t = 0.84 s.

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T = 2t

Where T = time taken for the bowling pin to return to the juggler's hand.

T = 2(0.84)

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T = 1.68 s

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