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Olegator [25]
3 years ago
12

I need help on this question

Physics
2 answers:
Mamont248 [21]3 years ago
4 0
Mabye the bottom one?
iVinArrow [24]3 years ago
3 0

Answer:

C

Explanation:

less dense water rising and more dense water sinking

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Use the scientific method to disprove the theory that “the Earth is the center of the universe.”
Pachacha [2.7K]

Why would we assume that Earth is the center of the the Universe in the first place?

Besides the fact the Earth contains life, it is no different from any other planet that we have ever seen, nor is the solar system in which it resides. There is no reason in the first place to assume its placement in the universe is different either.

7 0
4 years ago
Light has a frequency of about 6 x1014 Hz.
abruzzese [7]

Answer:

The visible light frequency is 400 THz to 700 THz, approximately. A THz is a Terahertz, which is a unit of frequency equal to one trillion Hertz.

4 0
2 years ago
A gas undergoes two processes. In the first, the volume remains constant at 0.200 m3m3 and the pressure increases from 2.50×105
SVETLANKA909090 [29]

Answer:

W = -4.95 \times 10^4\ J

Explanation:

given,

In first case Volume remains constant.

Work done in the first case is zero.

In Second case Volume change

V₁ = 0.2 m³

V₂ = 0.11 m³

Pressure, P = 5.5 x 10⁵ Pa

Work done = Pressure x change in volume

W = P ΔV

W = P(V_2-V_1)

W = 5.5\times10^5\times (0.11 - 0.2)

W = -4.95 \times 10^4\ J

Hence, Work done when volume changes is equal to W = -4.95 \times 10^4\ J

5 0
3 years ago
Electromagnetic energy travels inselect one:<br> a. long stringsb. short stringsc. burstsd. waves
aleksandrvk [35]
I think it's waves.
electromagnetic waves
6 0
4 years ago
Read 2 more answers
How do black holes grow?
MariettaO [177]

Answer:

Black holes of stellar mass are expected to form when very massive stars collapse at the end of their life cycle. After a black hole has formed, it can continue to grow by absorbing mass from its surroundings.

Explanation:

3 0
3 years ago
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