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murzikaleks [220]
3 years ago
7

A force of 50 N is used to move a footstool 3 m. How much work is done?

Physics
1 answer:
vaieri [72.5K]3 years ago
5 0

The work done is 150 joules

Explanation:

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

distance (d) from the start point

→ Work done = F × d

The S.I unit of work is Joule

A force of 50 N is used to move a footstool 3 m

→ F = 50 N

→ d = 3 m

→ Work done = F × d

Substitute the values of F and d in the rule

→ Work done = 50 × 3 = 150 joules

The work done is 150 joules

Learn more

You can learn more bout work done in brainly.com/question/9100769

#LearnwithBrainly

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Answer:

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Explanation:

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3 years ago
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What happens to a circuit's resistance (R), voltage (V), and current (1) when
hammer [34]

Answer:

D.

R increases

V is constant

I decreases

Explanation:

The resistance of a wire is given by the following formula:

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It is clear from this formula that resistance is directly proportional to the length of wire. So, when length of wire is increased, <u>the resistance of circuit increases</u>.

The <u>voltage in the circuit will be constant</u> as the voltage source remains same and it is not changed.

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V = IR

at constant V:

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<u>D.</u>

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6 0
3 years ago
3
kramer

Answer:

60.2 J

Explanation:

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e = Wout / Win

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