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3 years ago

12

what recommendations would you make to local officials regarding the types of resources that could be used to generate electrici

ty? (

1 answer:

Darina [25.2K]3 years ago

8 0

Solar wind and water

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Which type of surface would most likely be the best reflector of electromagnetic energy?

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Compute the resistance in ohms of a silver block 10 cm long and 0.10 cm2 in cross-sectional area. ( = 1.63 x 10-6 ohm-cm)

Vedmedyk [2.9K]

The resistance of the silver block is given by
$R= \frac{\rho L}{A}$
where
$\rho=1.63 \cdot 10^{-6} \Omega \cdot cm$ is the silver resistivity
$L=10 cm$ is the length of the block
$A=0.10 cm^2$ is the cross-sectional area of the block

If we plug the data into the equation, we find the resistance of the silver block:
$R= \frac{(1.63 \cdot 10^{-6} \Omega \cdot cm)(10 cm)}{0.10 cm^2}=1.63 \cdot 10^{-4} \Omega$

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