4 years ago

Power is expressed in ________?

Physics

1 answer:

Anna [14]4 years ago

6 0

Answer:

(B) Joules per second

Explanation:

Power is the amount of work done per unit of time. Since work is measured in Joules, the SI unit of power is Joules per second (J/s), or Watts (W).

Of course, the cooler unit of power is the Horsepower (hp), originally introduced by James Watt himself, using which people nowadays still boast about their favorite car's "strength."

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6. Four people are trying to help push and lift a refrigerator up a series of stairs. Jim pushes

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Answer:

Net force due to all on the refrigerator is 400 N

Explanation:

As we know that two people are pushing the refrigerator while other two people are lifting the refrigerator

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Now net force on the refrigerator is given as

$F_{net} =\sqrt{F_1^2 + F_2^2}$

$F_{net} = \sqrt{270^2 + 295^2}$

$F_{net} = 400 N$

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4 years ago

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1. Claim: Write a sentence stating whether texting and driving is potentially hazardous

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Answer:

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Explanation:

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