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2 years ago

What quantity measures the number of complete cycles oscillation makes per second?

Physics

2 answers:

kirza4 [7]2 years ago

3 0

The answer is (C) Frequency

pentagon [3]2 years ago

3 0

Answer:c. Frequency

Explanation:By definition frequency is the number of cycles per second, or the number of oscillations per second, measured in Hertz (Hz), then 1 Hz means one cycle or oscillation in one second, 10 Hz means 10 cycles in one second and so on. Also for motors specially is used rpm that stands for revolutions per minute. You could transform Hz into rpm if needed, but for waves, e.g., sound, electricity, etc. is used generally Hertz

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Ira Lisetskai [31]

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0.000234 seconds

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2 years ago

24. An elevator is moving vertically up with an acceleration a. The force exerted on the floor by a passenger of mass m is

Wewaii [24]

Given :-

An elevator is moving vertically up with an acceleration a.

To Find :-

The force exerted on the floor by a passenger of mass m .

Solution :-

As the man is in a accelerated frame that is non inertial frame , we would have to think of a pseudo force .

The direction of this force is opposite to the direction of acceleration the frame and its magnitude is equal to the product of mass of the concerned body with the acceleration of the frame .

For the FBD refer to the attachment . From that ,

$\implies Weight_{apparent}= mg + ma$

Hence option d is correct choice .

I hope this helps .

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melisa1 [442]

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