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Zarrin [17]
3 years ago
6

A dog runs with an initial speed if 7.5m/s on a waxed floor. it slides to a stop in 15 seconds. What is the acceleration ​

Physics
1 answer:
kap26 [50]3 years ago
6 0

Answer:

The answer is -0.5m/s2

Explanation:

I did the test and got it right.

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Answer:

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From conservation of energy

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0.5mv1^2 - GMm/r1 = 0.5mv2^2 - GMm/r2

0.5v1^2 - GM/r1 = 0.5v2^2 - GM/r2

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G = 6.67*10^-11 N.m^2/kg^2

0.5*(9*10^4)^2 - (6.67*10^-11*1.98*10^30/(5*10^10)) = 0.5v2^2 - (6.67*10^-11*1.98*10^30/(6*10^12))

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3 years ago
What is true about all the atoms calcium gold argon iodine
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4 0
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Compare metamorphic rock and intrusive igneous rock in terms of how and where they form. Then compare sedimentary rock and extru
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Answer: Igneous rock , formed by the cooling of magma (molten rock) inside the Earth or on the surface. Sedimentary rocks, formed from the products of weathering by cementation or precipitation on the Earth's surface. Metamorphic rocks, formed by temperature and pressure changes inside the Earth.

Explanation:

3 0
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