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Alona [7]
3 years ago
5

Redshift means stars and galaxies are emitting a color that is shifting toward the red end of the color spectrum. this indicates

the light's wavelengths are _____ and less frequent, and the star or galaxy is____?
Physics
2 answers:
iren [92.7K]3 years ago
7 0
Increasing ; moving away

This indicates the light's wavelengths are (increasing) and the star or galaxy is (moving away.)
Olin [163]3 years ago
6 0

Answer:

Redshift means stars and galaxies are emitting a color that is shifting toward the red end of the color spectrum. this indicates the light's wavelengths are <u>MORE</u> and less frequent, and the star or galaxy is <u>MOVING AWAY</u>

Explanation:

As we know that by Doppeler's effect of light when source is moving away from the observer then the frequency observed by the observer is given as

\frac{\Delta \nu}{\nu} = \frac{v}{c}

so here on moving away the frequency observed by observer will decrease and hence we can say that the wavelength of light must be increased

So here on increasing the observed wavelength we say it to be shifted towards higher side which means it is red shift

so here correct answer would be

Redshift means stars and galaxies are emitting a color that is shifting toward the red end of the color spectrum. this indicates the light's wavelengths are <u>MORE</u> and less frequent, and the star or galaxy is <u>MOVING AWAY</u>

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What constant acceleration, in SI units, must a car have to go from zero to 60 mph in 10 s? How far has the car traveled when it
nalin [4]

Answer:

Explanation:

initial velocity, u = 0

final velocity, v = 60 mph = 26.8 m/s

time t = 10 s

Let a be the acceleration and s be he distance traveled.

Use first equation of motion

v = u + a t

26.8 = 0 +  a x 10

a = 2.68 m/s

Use second equation of motion

s = ut + 1/2 at²

s = 0 + 0.5 x 2.68 x 10 x 10

s = 134 m

As, 1 m = 3.28 ft

So, s = 134 x 3.28 ft

s = 439.6 ft

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Answer:

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Are all phase change is chemical change? True or false? Why?
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Read 2 more answers
A toy balloon contains 0.75 L of helium at a pressure of 101 kPa. The balloon rises until the pressure on the balloon is 85 kPa.
Aleksandr [31]

<h3>The answer is 0.89 L</h3>

Explanation:

The new volume can be found by using the formula for Boyle's law which is

P_1V_1 = P_2V_2

Since we are finding the new volume

V_2 =  \frac{P_1V_1}{P_2}  \\

From the question we have

V_2 =  \frac{101000 \times 0.75}{85000}  =  \frac{75750}{85000}  \\  = 0.89117647...

We have the final answer as

<h3>0.89 L</h3>

Hope this helps you

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