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lozanna [386]
3 years ago
11

Why are you able to observe the Doppler effect on earth with sound waves but not with light waves?

Physics
1 answer:
VladimirAG [237]3 years ago
6 0

Answer: When an ambulance passes with its siren blaring, you hear the pitch of the siren change: as it approaches, the siren’s pitch sounds higher than when it is moving away from you. This change is a common physical demonstration of the Doppler effect.

Explanation:

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What was the measurement of the wavelength and amplitude respectively?
SpyIntel [72]
<h3>Answer</h3>

option C)

The wavelength has a length between 7.0 cm and 8.0 cm and the amplitude lies between 1.0 cm and 2.0 cm.

<h3>Explanation</h3><h2>1)</h2>

The amplitude of a wave is the height of a wave as measured from the highest point on the wave, peak, to the rest point or from  the lowest point on the wave, trough, to the rest point.

By looking at the image

rest point is at 5cm and crest is at 3.3 cm (y-axis)

so amplitude = 5 - 3.3

                      = 1.7 cm (approximately)

<h2>2)</h2>

Wavelength refers to the length of a wave from one peak to the next.

one crest is at 2cm and the other crest is at 10cm (x-axis)

so wavelength = 10 - 2

                          = 8 cm (approximately)

<h3 />
5 0
2 years ago
Two people on skateboards, Brian and Amy, push off from each other. Brian has more mass than Amy. Who experiences a larger force
amm1812
Amy because she is lighter, so the more force will be put on her
4 0
3 years ago
.. As you increase the
Llana [10]

Answer:

air pressure increases and temperature decreases

Explanation:

Hope this helps

3 0
3 years ago
How can two machines appear identical and yet not have the same actual mechanical advantage
STatiana [176]
There are many factors which contributes as to how a machine will be processing the input energy and convert it to output energy. Even with identical mechanism, these factors will have major effect on the output. Some factors are deflection, friction and wear. Some system maybe exposed to poor lubrication than the other which'll produce more friction and wear thus lower mechanical advantage.
4 0
3 years ago
Answer ?
morpeh [17]

Answer:

2.75 m/s^2

Explanation:

The airplane's acceleration on the runway was 2.75 m/s^2

We can find the acceleration by using the equation: a = (v-u)/t

where a is acceleration, v is final velocity, u is initial velocity, and t is time.

In this case, v is 71 m/s, u is 0 m/s, and t is 26.1 s Therefore: a = (71-0)/26.1

a = 2.75 m/s^2

5 0
2 years ago
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