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3 years ago

PLEASE HELP ASAP!!! GIVING BRAINLIEST!!! 40 points!!

Physics

2 answers:

Nana76 [90]3 years ago

4 0

W = Fd = 4(2100) = 8400 J

So the answer is A) 8400 J

I was just rewriting my notes on the work lesson I did in class today, so I saw this question at the perfect time!! :)

Hope it helps!! :)

Gnom [1K]3 years ago

3 0

Answer:

According to me Option is the right answer

A. 8,400 J

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From Ohm's law,

V = IR............... Equation 1

Where V = Voltage, I = current, R = resistance.

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I = 2 A, R = R1

Substitute into equation 1

V = 2R1................ Equation 2

When a resistance of 2.2Ω is added in series with R1,

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R = 2.2+R1, and I = 1.4 A

V = 1.4(2.2+R1)................. Equation 3

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