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3 years ago

12

Through which medium is it impossible to transmit sound waves?.

1 answer:

dusya [7]3 years ago

4 0

Answer: vacuum

Explanation: The vacuum is the medium from where the sound wave cannot pass. A vacuum is basically an area without any air. Since the sound wave is a mechanical wave that's why it cannot travel through a medium where there is no matter of vibrations to works in, i.e, it can't travel through a vacuum.

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Amy is standing still on the ground; Bill is riding his bicycle at 5 m/s eastward; and Carlos is driving his car at 15 m/s westw

Solnce55 [7]

Answer:

20 m/s westward

Explanation:

Taking eastward as positive direction, we have:

$v_B = +5 m/s$ is the velocity of Bill with respect to Amy (which is stationary)

$v_C = -15 m/s$ is the velocity of Carlos with respect to Amy

Bill is moving 5 m/s eastward compared to Amy at rest, so the velocity of Bill's reference frame is

$v_B = +5 m/s$

Therefore, Carlos velocity in Bill's reference frame will be

$v_C' = v_C - v_B = -15 m/s - (+5 m/s) = -20 m/s$

and the direction will be westward (negative sign).

3 0

3 years ago

PLEASE HELPPPP!!!<br> Density is the amount of mass per unit volume.<br><br><br> True or False

Alexxandr [17]

Answer:

true :D

Explanation:

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3 years ago

A force of 8480 N is applied to a cart or decelerate is at a rate of 32.0 m/s2. What is the mass of the cart?

Otrada [13]

I believe it to be 265kg.

4 0

3 years ago

What <br> material gives the soil its high fertility?

NARA [144]

Answer:

Humus

Explanation:

Its Humus I believe. I remember learning something like this.

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3 years ago

Scientific way of thinking

noname [10]

Answer:

huh,? can you explain the question more please

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3 years ago

Read 2 more answers