3 years ago

Radar use reflected microwaves to detect objects and measure their... what?

Physics

1 answer:

Sloan [31]3 years ago

7 0

Height and depth..... for sure....

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A parallel plate capacitor is constructed using two square metal sheets, each of side L = 10 cm. The plates are separated by a d

Snowcat [4.5K]

Answer:

The energy stored is 1.4 x 10^-9 J.

Explanation:

Side of square, L = 10 cm = 0.1 m

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$U = 0.5 C V^2$

The capacitance is given by

$C = \frac{\varepsilon o A}{d}\\\\So \\\\U = 0.5\frac{\varepsilon o A}{d}\times E^2 d^2\\\\U = 0.5\times 8.85\times 10^{-12}\times 0.1\times 0.1\times 4000\times 4000\times 0.002\\\\U = 1.4\times10^{-9} J$

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3 years ago

If the mass of a material is 115 grams and the volume of the material is 16 cm3, what would the density of the material be?

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