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Ivanshal [37]
3 years ago
15

If 4.1 × 1021 electrons pass through a 40 Ω resistor in 5 min, what is the potential difference across the resistor? The fundame

ntal charge is 1.602 × 10−19 C . Answer in units of V
Physics
1 answer:
nydimaria [60]3 years ago
7 0

Answer:

Potential difference across resistor will be 87.66 volt

Explanation:

We have given number of electrons n=4.1\times 10^{21}

Charge on one electron e=1.6\times 10^{-19}C

So total charge Q=4.1\times 10^{21}\times 1.6\times 10^{-19}=656C

Time is given t = 5 min

1 minute = 60 sec

So 5 minute = 5×60 = 300 sec

So current i=\frac{Q}{t}=\frac{656}{300}=2.1866A

Resistance is given R = 40 ohm

Sp from ohm's law potential difference across resistor v = iR = 2.1866×40 = 87.466 volt

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4 0
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Drop a paper a piece of thermocol and a piece of plastic from a height of 10 to 15 feet not the time for each object to hit the
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Answer:

Explanation:

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4 0
3 years ago
What is the kinetic energy of a 100 kg object that is moving with a speed of 12.5m/s
Doss [256]

The kinetic energy of any moving object is

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For the object you described, that's

                            (1/2) (100 kg) (12.5 m/s)²

                         =      (50 kg)  (156.25 m²/s²)

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______________________________

Your attachment is way out of focus, and impossible to read.

7 0
3 years ago
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oee [108]

Answer:

  1. A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.

A hypothesis is a tentative statement about the relationship between two or more variables. is a specific, testable prediction about what you expect to happen in a study.

Explanation:

This is answer

5 0
3 years ago
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the answer is B

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5 0
2 years ago
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