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Alexxx [7]
3 years ago
11

Object A has a negative charge. Object A is repelled by object B. Object B is repelled by object C and attracted to object D. Wh

at are the charges on objects B, C, & D?

Physics
1 answer:
Volgvan3 years ago
5 0

Answer:

B negatively charged. C negatively charged. D positively charged.

Explanation:

If A Is negative and B is repelled by it this means that B has to have the same charge as A therefore B is negatively charged.

B is repelled By C therefore meaning they both have the same charge so C has to be negatively charged.

B is attracted to D. attraction occurs between oppositely charged objects. Therefore D has to have the opposite charge of B. Since B is negative D has to be positive in order for that attraction to occur.

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A Carnot heat engine uses a hot reservoir consisting of a large amount of boiling water and a cold reservoir consisting of a lar
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Answer:

W=4037.36\ J

Explanation:

Given:

mass of ice melted, m=3.3\times10^{-2}\ kg

time taken by the ice to melt, t=5\ min=300\ s

latent heat of the ice, L=3.34\times 10^5\ J

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The cold reservoir is ice, so:

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\eta=26.81\%

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