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castortr0y [4]
3 years ago
8

Imagine that the light you observe from space is exhibiting a redshift. This would mean that the Universe is Choose one: A. trav

eling faster than the speed of light. B. traveling slower than the speed of sound. C. expanding. D. collapsing.
Physics
1 answer:
docker41 [41]3 years ago
7 0

Answer: C. Expanding

Explanation:

When an object moves away from an observer, the light waves emitted by the object are stretched out making them have move towards the red end of the electromagnetic spectrum, where light has a longer wavelength. This phenomenon is known as the redshift (cosmological redshift). For most astronomical objects, the observed spectral lines are all shifted to longer wavelengths. It is caused solely by the expansion of the Universe and thus, the value of a redshift indicates the recession velocity of the expanding object, or its distance.

Redshift is opposed to the blueshift. Blue light wavelengths tend to be closer together hence blueshift light tends to be emitted from objects that are collapsing.

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Pls help with all questions dew in 10 minutes!
Artyom0805 [142]
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When we look at Jupiter, we're actually seeing the outermost layer of its clouds.

The Great Red Spot is a storm in Jupiter's southern hemisphere with crimson-colored clouds that spin counterclockwise at wind speeds

8. 58,232 km

The second largest planet in the solar system

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Saturn's rings are thought to be pieces of comets, asteroids or shattered moons that broke up before they reached the planet,

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Uranus' atmosphere is mostly hydrogen and helium, with a small amount of methane and traces of water and ammonia.

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Neptune has an average temperature of -353 Fahrenheit (-214 Celsius).

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5 0
3 years ago
PLEASE HURRY HELP ME take 40 point please help me now.Just look The picture​
kaheart [24]

Answer:

ion channel

Explanation:

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7 0
2 years ago
For a movie stunt, an empty truck with a mass of 2000 kg goes 10 m/s and runs into a stopped car of mass 1000 kg. the truck then
babunello [35]

ANSWER

Both trucks will move together with speed v = 6.67 m/s

so correct answer will be

The speed of the combined vehicles is less than the initial speed of the truck.

EXPLANATION

As we know that there is no external force on the system of two trucks

So here momentum of the two trucks before collision and after collision will remain same

So here we will have

m_1v_{1i} + m_2v_{2i} = m_1v_{1f} + m_2v_{2f}

so here we will have

v_{1i} = 10 m/s

v_{2i} = 0

m_1 = 2000 kg

m_2 = 1000 kg

now we will have

2000\times 10 + 1000\times 0 = (2000 + 1000) v

v = \frac{20000}{3000} = 6.67 m/s

so correct answer will be

The speed of the combined vehicles is less than the initial speed of the truck.

3 0
2 years ago
Read 2 more answers
As distance increases, force decrease and vise versa, as distance decreases then, force increases. This is a ________________ re
Sonbull [250]
It is indirectly proportional or inverse so it would be C
8 0
2 years ago
The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600. wingbeats per second. What is
Svetach [21]

Wavelength = (speed) / (frequency)

Wavelength = (340 m/s) / (600 /s)

Wavelength = 0.567 meter
6 0
3 years ago
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