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sertanlavr [38]
3 years ago
14

A car traveling at 45 miles per hour is brought to a stop, at constant deceleration, 132 feet from where the brakes are applied.

Physics
1 answer:
Nataliya [291]3 years ago
4 0

Answer:

c

Explanation:

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A 0.500-V potential difference is maintained across a 1.50-m length of tungsten wire that has a cross-sectional area of 0.800 mm
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Answer:

5.95 A

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From the question

R = ρL/A..................... Equation 1

Where R = resistance of the tungsten wire, ρ = Resistivity of the tungsten wire, L = length, A = cross sectional area.

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Substitute these values into equation 1

R = 1.5(5.60×10⁻⁸)/0.8×10⁻⁶

R = 0.084 Ω.

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Make I the subject of the equation

I = V/R............... Equation 2

I = 0.5/0.084

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