2 years ago

Please help need answer asp

Physics

1 answer:

sdas [7]2 years ago

3 0

D cardio-respiratory Endurance\

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A wire is stretched right to its breaking point by a 5000 N force. A longer wire made of the same material has the same diameter

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Equal to 5000N

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A 3.50-meter length of wire with a cross-sectional area of 3.14 × 10-6 meter2 is at 20° Celsius. If the wire has a resistance of

maks197457 [2]

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$5.6\times 10^{-8}\ Ohm.m$

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Resistivity is given by $\rho=\frac {AR}{L}$ where A is cross-sectional area, R is resistance, L is the length and $\rho$ is the reistivity. Substituting 0.0625 for R, 3.14 × 10-6 for A and 3.5 m for L then the resistivity is equivalent to

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