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natali 33 [55]
4 years ago
14

Are stars classified using nebula ​

Physics
1 answer:
cluponka [151]4 years ago
3 0
Yes but no Is it for a grade?
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He diagram shows an electric motor.
Luda [366]
The correct answer is X.
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Question 3
wariber [46]

Answer:

1200J

21.8Watts

Explanation:

Given parameters:

Force  = 400N

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Time  = 55s

Unknown:

Work done  = ?

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Solution:

Work done is the force applied to move a body through a certain distance.

Power is the rate at which work is done

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Power  = \frac{work done }{time}   = \frac{1200}{55}    = 21.8Watts

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3 years ago
A vector always consists of _____. <br> a force <br> mass<br> size<br> direction
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Vector it always consists to size(magnitude) and direction 
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4 years ago
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The density of an object is .835 g/cm3. If its volume is 34 cm3, what is the mass of the object?
zaharov [31]

D = m/v


Given:

D: .835 g/cm3

V: 34 cm3

M: ?


M= Dxv


M= .835 g/cm3 x 34 cm3

M= 28.39 g

4 0
3 years ago
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A moving object has a kinetic energy of 20 J. if it’s velocity doubles, it’s kinetic energy would be
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Answer:

3

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Applying the formula, we see that the ke gets increased 4 tines.

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