3 years ago

All objects emit radiation as a result of

1 answer:

3 0

All objects emit radiation as a result of their temperature. According to their temperature, electromagnetic radiation varies.

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8_murik_8 [283]

Explanation:

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2 years ago

A power plant produces 1000 MW to suply a city 40Km away.Current flows from the power plant on a single wire of resistance0.050

Westkost [7]

Answer:

The current in wire resistance 2Ω

a). 8696 A

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Explanation:

Resistance

$R=0.05$ Ω/Km*40km

R=2Ω

P=1000 MW

a).

$P=V*I\\I=\frac{P}{V}=\frac{1000x10^{6}W}{115x10^{3}k } =8696.65A$

Using law ohm

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$V=I*R\\I=\frac{V}{R}$

$P=I*I*R\\P=I^{2} *R\\P=8696.65^{2}*2\\P=151.228 x10^{6} W$

$e=\frac{151.228x10^{6} }{1000x10^{6} }*100= 15.12$ %

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3 years ago

Can work done=mass*acceleration*displacement(work=m*a*s)

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no, work is = force * distance or displacement

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If force and displacement are in opposite directions, will work be positive or negative?

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It would be negative regardless of what you define as a positive direction.

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What is the definition of differentiation geology?

UkoKoshka [18]

Any process in which a mixture of materials separates out partially

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