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ioda
2 years ago
13

Which of these is a good way to begin your personal helath plan for physical fitness A. An assessment B. An action plan C. A pla

n for measuring progress toward your goal D. An ambitious goal.
Physics
1 answer:
saw5 [17]2 years ago
4 0

Answer: A. An Assessment

<em>I hope this helps, and Happy Holidays! :)</em>

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2 years ago
A merry-go-round is shaped like a uniform disk and has moment of inertia of 50,000 kg m 2 . It is rotating so that it has an ang
lapo4ka [179]

Answer:

r = 20 m

Explanation:

The formula for the angular momentum of a rotating body is given as:

L = mvr

where,

L = Angular Momentum = 10000 kgm²/s

m = mass

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r = radius of merry-go-round

Therefore,

10000 kg.m²/s = mr(2 m/s)

m r = (10000 kg.m²/s)/(2 m/s)

m r = 5000 kg.m   ------------- equation 1

Now, the moment of inertia of a solid uniform disc about its axis through its center is given as:

I = (1/2) m r²

where,

I = moment of inertia = 50000 kg.m²

Therefore,

50000 kg.m² = (1/2)(m r)(r)

using equation 1, we get:

50000 kg.m² = (1/2)(5000 kg.m)(r)

(50000 kg.m²)/(2500 kg.m) = r

<u>r = 20 m</u>

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3 years ago
No force is necessary to
igor_vitrenko [27]
No force is necessary to keep a moving object moving (in a straight line at a constant speed).
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3 years ago
What happens when stress builds up at faults?
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Answer:

The answer is D because when the faults move that is the tectonic plates moving. So earth quakes will be forming when the fault moves.

Explanation:

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3 years ago
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3 years ago
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