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Zielflug [23.3K]
3 years ago
5

A 2.80 kg mass is dropped from a height of 4.50 m . Find its potential energy (PE) at the moment it is dropped .

Physics
1 answer:
chubhunter [2.5K]3 years ago
8 0
PE = mgh
2.8 * 9.8 * 4.5 = 123.48 J
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Where is the us constitution does it mention anything about local governments
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This is an elastic collision

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3 years ago
A sculpture is suspended in equilibrium by two cables, one from a wall and the other
aleksandrvk [35]

Answer:

T_1=6655.295917 \approx 6655.3N

Explanation:

From the question we are told that

Angle of cable 2 \theta=37.0\textdegree

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7 0
3 years ago
A student walks 4 block east, 7 blocks west, 1 blocks east then 2 blocks west in an hour. Her average speed is____ block/hour
Gemiola [76]

Average speed = (total distance) / (total time)

Average speed = (4+7+1+2 blox) / (1 hour)

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<em></em>

I'm gonna go out on a limb here and take a wild guess:

I'm guessing that there's another question glued onto the end of this one, and it asks you to find either her displacement or her average velocity.  I'm so sure of this that I'm gonna give you the solution for that too.  If there's no more question, then you won't need this, and you can just discard it.  I won't mind.

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Displacement = (5E + 9W)

<em>Displacement = 4 blocks west</em>

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<em>Average velocity = 4 blocks/hour  West</em>

4 0
2 years ago
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zimovet [89]
The more you mix salt with water the more the salt will dissolve
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Hoped my answer helped! 
8 0
4 years ago
Read 2 more answers
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