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3 years ago

12

Which is not standing in the way of astronomers getting a good view of distant stars?

2 answers:

Olenka [21]3 years ago

7 0

The situation wherein the redshift is making the stars difficult to see is not, in any way, preventing the astronomers from getting a good view of distant stars.

When light or other electromagnetic radiation from an object is expands in wavelength, or moved to the red end of the spectrum, the redshift happens. An increase in wavelength and being equivalent to a lower frequency and a lesser photon energy, following the quantum theories of light and the wave is called the redder, whether or not the radiation is inside the spectrum.

The spectroscopic observations of astronomical<span> objects can see redshifts and its value is regarded by the letter z.</span>

Ne4ueva [31]3 years ago

4 0

Answer:

Plain and simple. Redshift makes stars difficult to see. Apex verified and confirmed.

Explanation:

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On Planet Y, which has no air, a dropped object falls 9 m in 3 seconds. What is g, the acceleration due to gravity, on that plan

slavikrds [6]

Answer:

a = 2 m/s^2

which agrees with the third answer option provided.

Explanation:

Recall the kinematic formula for displacement under the action of a constant acceleration "a":

yf - yi = 1/2 a t^2

using the information provided this equation becomes:

9 = 1/2 a (3)^2

solve for a:

9 * 2 / 9 = a

then a = 2 m/s^2

which agrees with the third answer option provided.

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3 years ago

The efficiency of an average gasoline-powered car is about 20%. This means

nydimaria [60]

Answer:

This means C.the car uses 20% of the energy store in the gasoline for motion.

Explanation:

I hope this helps.

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3 years ago

Read 2 more answers

What is the impulse needed to stop a 45-kg boy who is running at 6 m/s in 3 seconds?

Tju [1.3M]

Impulse = change of momentum
Impulse = 45 x 6 = 270 Ns

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3 years ago

Suppose a firm is producing 2,475 units of output by hiring 50 workers (W = $20 per hour) and 25 units of capital (R = $10 per h

Neko [114]

Answer

given,

firm is producing = 2,475 units

output by hiring 50 workers W = $20 per hour

25 units of capital R = $10 per hour

marginal product of labor = 40

marginal product of capital = 25

$\dfrac{MP_l}{MP_c}=\dfrac{40}{25}$

$\dfrac{MP_l}{MP_c}=\dfrac{8}{5}$

$\dfrac{W}{R}=\dfrac{20}{10}$

$\dfrac{W}{R}=2$

$\dfrac{MP_l}{MP_c} < \dfrac{W}{R}$

Firm is not minimizing the cost because the firm use more capital and less labor.

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4 years ago

An object is dropped and is in free fall. Each second, the position of the object is marked. The distance between each mark is m

navik [9.2K]

C. hope this helps :)

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3 years ago