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Wittaler [7]
3 years ago
13

Under which condition does Ohm's law apply? a. The current must be constant b. The power must be constant c. The temperature mus

t be constant d. The voltage must be constant
Physics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

option c

Explanation:

The temperature must be constant. Ohms law states that the current running through a conductor is directly proportional to the potential difference across it provided the temperature remains constant

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Seven seconds after a brilliant flash of lightning, thunder shakes the house. How far was the lightning strike from the house? S
Zepler [3.9K]

Answer:

About two kilometers away

\rm distance=2.401\ km

Explanation:

Given:

The time gap between the light and sound to travel to the house, t=7\ s

<em>Since the clouds are formed in the troposphere region of the atmosphere which extends from 8 kilometers to 12 kilometers above the earth-surface and the velocity of light is 300000 kilometers per second so it is visible almost instantly, hence we neglect the time taken by the light to travel to the house from the clouds.</em>

<u>∴Distance between the lightning-strike and the house:</u>

\rm distance=v\times t

we have the speed of sound as: v=343\ m.s^{-1}

So,

\rm distance=343\times 7

\rm distance=2401\ m

\rm distance=2.401\ km

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3 years ago
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                                   =    6,762 newtons forward
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             Momentum  =  (mass) x (speed)

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3 years ago
What is the total resistance in this circuit?
saul85 [17]

Answer:B

Explanation:

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