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aniked [119]
4 years ago
15

What is the meaning of galaxy?

Physics
2 answers:
mariarad [96]4 years ago
5 0
<span>a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.</span>
SCORPION-xisa [38]4 years ago
5 0
A galaxy is a group of planets and stars. :D Hope this helps! ;3
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Bob is pulling a 30kg filing cabinet with a force of 200N , but the filing cabinet refuses to move. The coefficient of static fr
vredina [299]

Answer:

2.0\cdot 10^2 N

Explanation:

The cabinet does not move: this means that the net force acting on it is zero.

Along the horizontal direction, we have two forces:

- The push exerted by Bob, F = 200 N, forward

- The frictional force, F_f, which acts in the opposite direction (backward)

Since the net force must be zero, we have:

F-F_f = 0

So solving the equation we can find the magnitude of the friction force:

F_f = F = 200 N=2.0 \cdot 10^2 N

7 0
4 years ago
What is the frequency of a sound wave traveling at 335 m/s with a wavelength of .55 m?
irga5000 [103]

Answer:

v=f* lamba

f=v/lamba

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f=6.45 hertz

8 0
3 years ago
3. Label the parts of each wave.<br> Please help me!!!
lisabon 2012 [21]

Answer:

D is the wavelength

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B is trough

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I is rarefaction

4 0
3 years ago
Suppose Galileo dropped a lead ball (100 kilograms) and a glass ball (1 kilogram) from the Leaning Tower of Pisa. Which one hit
Reika [66]

The Answer is C Both at the same time

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3 years ago
Due Ma<br> duart<br> ded<br> out<br> 25 N<br> 35 N<br> 1-03
Anuta_ua [19.1K]

Answer:

what's that all about

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Explanation:

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