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nirvana33 [79]
2 years ago
15

Please help. This question is urgent.​

Physics
1 answer:
Alex_Xolod [135]2 years ago
8 0

Answer:

A

Explanation:

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A crew on a spacecraft watches a movie that is two hours long. The spacecraft is moving at high speed through space. An Earth-ba
laiz [17]

Answer:

The duration of the movie is longer than 2 hrs.

Explanation:

Given:

The duration of the movie observed by the crew on the spacecraft is 2 hrs.

According to time-dilation formula:

t = \dfrac{t_{0}}{\sqrt{1 - \dfrac{v^{2}}{c^{2}}}}

Here, t is the required time, t_{0} is the original time, v is the velocity of the spacecraft and c is the velocity of light.

Since v, so t_{0} > t.

So the time required will be large.

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3 years ago
What type(s) of wave(s) transports visible light?
Anuta_ua [19.1K]
The Electromagnetic and Visible Spectra. I believe..
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3 years ago
A 1.5 V battery produces 41.8 mA when it is across a 30.0 Ω load. The potential difference across the battery's terminals is
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Answer:

Explanation:

V = I R

V = 0.0418 * 30

V = 1.254

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6 0
2 years ago
Read 2 more answers
. Which elements were formed in the big bang? A. carbon, oxygen B. hydrogen, helium C. nitrogen, carbon dioxide D. chlorine, arg
Nutka1998 [239]
Hello there!

Well, the Big Bang only formed 3 elements (the rest were formed in stars and supernovae). These are Hydrogen, Helium, and Lithium.

Your correct answer will be b.

I hope this helps!
Brady
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3 years ago
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4.Upthrust doesnt depend on the following Physical quantity?
NemiM [27]

Answer:

C: Mass of body

Explanation:

Upthrust is defined as the upward force that a liquid will exert on a body floating atop it.

Now, Formula for upthrust is;

Upthrust = density of liquid × volume of the body × acceleration due to gravity.

From the formula, we can see that upthrust depends on density, volume and acceleration due to gravity.

Thus, looking at the options, the one that doesn't apply is mass of body.

8 0
2 years ago
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