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Vaselesa [24]
4 years ago
14

A toaster is plugged into a 120-volt household circuit. It draws 5 amps of

Physics
1 answer:
ElenaW [278]4 years ago
6 0
A. Resistance R is a fraction of voltage over current:
R=\frac{U}{I}=\frac{120V}{5A}=24Ohm

b. The power of the toaster P is a multiplication of voltage:
P=U*I=120V*5A=600W

c. 1 kW = 1000W then:
P_{kW}=0,6kW
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Answer:

The  value  is   m \approx   310

Explanation:

From the question we are told that

     The  focal length of the objective is  f_o =  1.0 \ cm

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m_e is the eyepiece magnification which is mathematically evaluated as

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     m_e  =  \frac{25 }{ 2}

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