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3 years ago

Which statements accurately describe mechanical waves? Check all that apply.

Physics

2 answers:

Lorico [155]3 years ago

4 0

Answer:

-Energy is transferred through vibrating particles

-An ocean wave moving through water is an example of a mechanical wave

-A longitudinal wave is a type of mechanical wave.

-A transverse wave is a type of mechanical wave

Explanation:

stiks02 [169]3 years ago

3 0

Answers that apply include

Energy is transferred through vibrating particles
An ocean wave moving through water is an example of a mechanical wave
A longitudinal wave is a type of mechanical wave.
A transverse wave is a type of mechanical wave

Mechanical waves can't pass through vacuum like electromagnetic waves because t depends on the transfer of energy between particles of matter (matter that has inertia and elasticity). This energy propagates in the same direction as the wave. Another example of mechanical energy is sound. In addition to longitudinal and transverse waves, another type of mechanical wave is surface waves.

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3 years ago

2. A 55 kg woman has a momentum of 200 kg m/s. What is her velocity?

NeTakaya

Answer:

$\boxed {\tt 3.63636364 \ m/s}$

Explanation:

Velocity can be found using the following formula:

$v=\frac{p}{m}$

where p is the momentum and m is the mass.

The woman has a mass of 55 kilograms and a momentum of 200 kilogram meters per second.

$p= 200 \ kgm/s\\m=55 \ kg$

Substitute the values into the formula.

$v=\frac{200 \ kg m/s}{55 \ kg}$

Divide. Note that the kilograms, or kg, will cancel each other out.

$v=\frac{200 \ m/s}{55}$

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3 years ago

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).

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3 years ago

A boater is floating 1060 meters down a river. The person takes 40 minutes. At what speed is the boat moving?

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2 years ago

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Answer:

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Explanation:

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3 years ago