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bija089 [108]
3 years ago
9

Electric resistance ____________ with a(n) ____________in the length of a wire and as a result current flow ___________.

Physics
1 answer:
maria [59]3 years ago
3 0
The answer is D. Electric resistance increases with an increase in the length of a wire and as a result current flow decreases. There is a direct relationship between the length of the wire and the resistance. The longer the wire, the more resistance there will be. Additionally, from Ohm's Law, current is inversely proportional to resistance. This means as the current increases, resistance decreases or vice versa.
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One person is in a pool and is diving to a depth of 2.3m, and another person is diving to a depth of 3m. What pressure does each
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Explanation:

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For the first person:

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For the second person:

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3 years ago
What happens to the frequency of a wave If the wavelength is decreased by half
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Answer:

Frequency  doubles.

Explanation:

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3 years ago
A large crate is suspended from the end of a vertical rope. Is the tension in the rope greater when the crate is at rest or when
choli [55]

Answer:

Part a)

the tension force is equal to the weight of the crate

Part b)

tension force is more than the weight of the crate while accelerating upwards

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Explanation:

Part a)

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F_t - mg = ma

here since speed is constant or it is at rest

so we will have

a = 0

F_t = mg

so the tension force is equal to the weight of the crate

Part b)

Now let say the crate is accelerating upwards

now we can say

F_t - mg = ma

F_t = mg + ma

so tension force is more than the weight of the crate

Now if the crate is accelerating downwards

F_t - mg = -ma

F_t = mg - ma

so tension force is less than the weight of crate if it is accelerating downwards

4 0
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The answer would be C.

8 0
3 years ago
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