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evablogger [386]
2 years ago
13

An object's mass refers to _____ and an object's weight refers to _____. Fill in each blank.

Physics
1 answer:
mamaluj [8]2 years ago
6 0

Answer:

c

Explanation:

because the more mass it has the more dense it is

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A sled of mass m is being pulled horizontally by a constant horizontal force of magnitude F. The coefficient of kinetic friction
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I'll bite:

-- Since the sled's mass is 'm', its weight is 'mg'.

-- Since the coefficient of kinetic friction is μk, the force acting opposite to the direction it's sliding is    (μk) times (mg) .

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(I regret the visual appearance that's beginning to emerge,
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This could be simplified, but let's not just yet.

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Now we have the distance, and the constant force.
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Work = (Force x distance) =  F x  (1/2 t²)  (F - μk·mg) / m
 
Power = (Work / time) =    <em>F (t/2) (F - μk·mg) / m </em>

Unless I can come up with something a lot simpler, that's the answer.


To simplify and beautify, make the partial fractions out of the
2nd parentheses:
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I think that's about as far as you can go.  I tried some other presentations,
and didn't find anything that's much simpler.

Five points,ehhh ?


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