1 year ago

The ____________________ of your voice refers to its intensity or loudness.

Physics

1 answer:

JulijaS [17]1 year ago

7 0

That's the amplitude.

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O Bluish ("blue")
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A White with bluish tinged ("white")
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An apple fell 4 m from the top of the tree to the ground in 0.9 s. what was its average speed?

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Number of waves that pass a given point in one second

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number of waves that pass a given point in one second is called frequency..

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2 years ago

A source emits sound with a frequency of 860 Hz. It is moving at 20.0 m/s toward a stationary reflecting wall. If the speed of s

Galina-37 [17]

Answer:

$f_o=860\ Hz$

Explanation:

Given:

original frequency of sound wave, $f=860\ Hz$

speed of the sound source, $v_s=20\ m.s^{-1}$

original speed of sound wave from the source, $s=343\ m.s^{-1}$

According to the Doppler's effect:

$\frac{f_s}{f_o} =\frac{s+v_s}{s-v_o}$

The sound is reflected from the wall and the source is moving towards the wall and observer is also riding the same source.

The velocity of the observer, $v_o=-20\ m.s^{-1}$

$\frac{860}{f_o} =\frac{s+20}{s-(-20)}$

$f_o=860\ Hz$

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2 years ago

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A boy pushes a 50 kg wheelbarrow with a velocity of 0.5 m/s. If he uses a force of 10 N, how far does he push

labwork [276]

Answer:

d=1.25 m

Explanation:

fd=.5mv2-.5mv1; 10(d)=.5(50)(.5)-0; 10(d)=12.5; d=12.5/10; d=1.25 m

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1 year ago