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4 years ago

Which statements accurately describe the Doppler effect? Select three options.

Physics

2 answers:

Oksana_A [137]4 years ago

7 0

Answer:

A, b, c

Explanation:

Doppler effect can be used to determine the speed at which stars and galaxies are moving towards or away from us. This mechanism can be either blueshift or redshift.

Redshift occurs when light that is observed to be coming from an object is moving away and it wavelength increases proportionally or moved towards the red spot of the spectrum. This mechanism is vice versa for a blue shift. Because blue light's frequency is higher than that of red light, the spectral lines of an astronomical light moving towards us displays a blue shift and the one moving away exhibits a red shift.

Katena32 [7]4 years ago

6 0

Answer:The answer is A,B and C

Explanation: it can be use to learn universe behavior,it is also use for the measurements of velocity of galaxy,and is can also be use to indicate,galaxy motion.

Doppler effect,measures the speed which star and galaxy are moving away from us or towards us. It shows the color of wavelength to be either red shift or blue shift.

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Likurg_2 [28]

I would have to say B failed because I think I read something about it being only 2law not 3

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3 years ago

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andreyandreev [35.5K]

Answer:

v = -6m/s

Explanation:

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3 years ago

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IceJOKER [234]

Answer:

Period for 1 revolution is 1.75 seconds

Explanation:

given data

revolutions R = 8

time t = 14 seconds

to find out

What is the period

solution

we know that Period is the time per revolution

so here period formula that is express as

period = $\frac{R}{t}$ = $\frac{8}{14}$ = 0.57 revolution in one second

so in 1 revolution = $\frac{1}{0.57}$ seconds

so in 1 revolution = 1.75 seconds

so period for 1 revolution is 1.75 seconds

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3 years ago

What type of force are you exerting when you stomp your foot on the ground

madam [21]

Answer:

stomp???, frictional force

Explanation:

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3 years ago

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Andru [333]

Explanation :

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The free body diagram is shown in <em>figure 2</em>. This shows the total forces ( F = ma )acting on the truck. As a result, the truck will move in a forward direction.

Hence, this is the required explanation.

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3 years ago

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