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Andreas93 [3]
3 years ago
12

Albert is on Earth and measures the speed of light from the sun as 3 E8 m/s. He then gets in a spaceship and speed toward the su

n at 1 x E8 m/s. He will then measure the speed of light as
2 E8 m/s
3 E8 m/s
4 E8 m/s
None of the above
Physics
2 answers:
Flura [38]3 years ago
7 0
Choice B, 3 E8 m/s because it will stay the same no matter where he is or how fast he's going
Ierofanga [76]3 years ago
5 0

Answer:

The speed of light remains the same.

Explanation:

It is given that, Albert is on Earth and measures the speed of light from the sun as 3 × 10⁸ m/s. He then gets in a spaceship and speed toward the sun with a speed of 1 × 10⁸ m/s.

In this case, the speed of light remains the same i.e. 3 × 10⁸ m/s. It is a universal constant. Albert Einstein was the first scientist who has written his first research paper on relativity. According to him, the speed of light remains the same. It does not depend on how fast the observer moves.

Hence, the correct option is (b).

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Since the direction of the force and the direction of the path is perpendicular, the person is not doing any physical work.
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Neon atoms at 245 K pass through a fan that gives each mole of neon gas an additional kinetic energy of 16.0 J. Part A What is t
hjlf

Answer:

246.28 K

Explanation:

The total energy of one mole of gas molecules can be calculated by the formula given below

E = \frac{3}{2}\times R\times T

Where R is gas constant and T is absolute temperature.

Put the value of R as 8.314 and temperature as 245 , we get

E = \frac{3}{2}\times 8.314\times 245

= 3055.4 J

Add 16 j to it

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If T be the temperature after addition of energy then

\frac{3}{2}\times 8.314\times T = 3071.4

T =\frac{2\times 3071.4}{3\times 8.314}

T = 246.28 K

7 0
3 years ago
An object of mass 4kg is moving along a horizontal plane. If the coefficient of kinetic friction is 0.2 find the friction force
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Answer:

The friction force acting on the object is 7.84 N

Explanation:

Given;

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The friction force acting on the object is calculated as;

F = μkN

F = μkmg

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F is the frictional force

m is the mass of the object

g is the acceleration due to gravity

F = 0.2 x 4 x 9.8

F = 7.84 N

Therefore, the friction force acting on the object is 7.84 N

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The answer you’re looking for is
D. Gamma rays
Enjoy the rest of your day/night :)
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Cable color codes are very important for example, If something is not wired properly, it can result in injuries, deaths, fires, and many other problems. This is why there are well-established wire color codes to ensure those working with an around this type of equipment can ensure everything is wired safely and effectively. If we used three phase cables without color code, this can lead too incorrect things that might be a hazard too get not fix and learning new color codes would be hard therefore we should stick too the same color codes for cables and it saves the hassle for needing too check every cable cord color then the original one signed too it.

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3 years ago
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