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Deffense [45]
3 years ago
7

Watt, which is a unit of power, is equal to ____ a) a joule divided by a second b) a joule times a meter c) a joule times a seco

nd d) a joule divided by a meter
Physics
2 answers:
djyliett [7]3 years ago
8 0

<u>Answer:</u> Watt, a unit of power is equal to a joule divided by a second

<u>Explanation:</u>

Power is defined as the ratio of rate of work done by an object.  It is measured in Watt.

Mathematically,

P=\frac{W}{t}

where,

W = work done by the object. It is measured in Joules

t = time taken by the object. It is measured in seconds

So, the unit of watt is equal to a joule divided by a second.

Hence, Watt, a unit of power is equal to a joule divided by a second

Likurg_2 [28]3 years ago
3 0

Power is the RATE of use, flow, or transfer of energy.

1 watt = 1 joule PER SECOND.

The correct choice is ' <em>a</em> '.

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Explanation:

                                                     STEP 1

<u>Given</u>

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<u>part 1</u>

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<em>I = Icm + mh²</em>

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where

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m is the mass of the cylinder

h is the distance between the axis of the rotation and the central axis of the cylinder

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<em>part2</em>

<em>from the conservation of the total mechanical energy of the meter stick, the change in gravitational potential energyof the meter stick plus the change in kinetic energy must be zero</em>

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