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3 years ago

Two similar fans are operating in a room. Fan 1 makes a squeaking noise while running. Fan 2 is silent.

Physics

2 answers:

REY [17]3 years ago

8 0

Answer:

Explanation:

because it has more energy

GaryK [48]3 years ago

5 0

Answer:

d fan 2 becuase Fan 1 converts some energy into sound

Explanation:

Why is the awnser D you ask me?

Well its becuase sound is energy and to make sound you must use other energy. fan 1 uses some of its kinetic energy and converts it to sound and slows down becuase it waste kinetic energy for sound. on the other hand fan 2 converts all its electrical energy (of course it emits some infered light) into kinetic energy.

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Answer:

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3 years ago

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krek1111 [17]

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3 years ago

A man drags a 71-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The

Flura [38]

Answer:

T = 540 N (to two significant digits)

Explanation:

Let the crate dimension L be from strap attachment to floor contact

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3 years ago

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miskamm [114]

Answer:

1.0 x 10^-3 m

Explanation:

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