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3 years ago

Define work and power. How are work and powerrelated?

Physics

1 answer:

Ahat [919]3 years ago

6 0

Work is done by using energy, and power is the rate at which

work is done

Explanation:

Work occurs when a force (F) acts on an object to move it some

distance (d) from the start point

Work is the energy needed to apply a force to move an object a

particular distance, where force is parallel to the displacement

→ Work = Force × Distance

The unit of work is joule (N.m)

Power is the rate of change of work

→ Power = Work ÷ Time

The unit of power is watt (N.m/s)

Work is done by using energy, and power is the rate at which

work is done

→ Work = Force × Distance

→ Power = Work ÷ Time

Substitute the work rule in the power rule

→ Power = (Force × Distance) ÷ Time

→ Distance ÷ Time = Speed

→ Power = Force × speed

Work is done by using energy, and power is the rate at which

work is done

Learn more:

You can learn more about work and power in brainly.com/question/7956557

#LearnwithBrainly

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4 years ago

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<u>Answer</u>

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4 years ago

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Answer:

Reaction is 20N.

Explanation:

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3 years ago

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3 years ago

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Gold has a specific heat of 0.130 J/g*C. If 195 joules of heat are added to 15 grams of gold how much does the temperature of th

Anna71 [15]

The correct answer to the question is : $100\ ^0C$

EXPLANATION :

As per the question, the specific heat of gold is given as c = $0.130\ J/g^0C$

The heat given to the gold dQ = 195 J

The mass of the gold is given as m = 15 gram.

We are asked to calculate the change in temperature.

Let the change in temperature is dT.

We know that dQ = mcdT

$dT=\ \frac{dQ}{mc}$

$=\ \frac{195}{15\times 0.130}$

$=\ 100\ ^0C$ [ANS]

Hence, the change in temperature is 100 degree celsius.

5 0

4 years ago

Define work and power. How are work and powerrelated?​

Define work and power. How are work and powerrelated?