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Dmitry_Shevchenko [17]
2 years ago
8

A piano has a mass of 185 kg, and the coefficient of friction between it and the floor is 0.39. What is the maximum force of fri

ction between the piano and the floor?
707 N
523 N
1813 N
1208 N
Physics
2 answers:
Dimas [21]2 years ago
7 0
Coefficient of friction x mass x g
Nesterboy [21]2 years ago
4 0

707 N

185×0.39×9.8

I just did it and found the answer

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a 2100-kg car drives with a speed of 18 m/s onb a flat road around a curve that has a radius of curvature of 83m. The coefficien
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<u>The magnitude of the friction force is 8197.60 N</u>

Explanation:

Using the definition of the centripetal force we have:

\Sigma F=ma_{c}=m\frac{v^{2}}{R}

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Now, the force acting in the motion is just the friction force, so we have:

F_{f}=m\frac{v^{2}}{R}

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F_{f}=8197.60 \: N

<u>Therefore the magnitude of the friction force is 8197.60 N</u>

I hope it helps you!

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Help !!!! Estimate the number of breaths taken by a person during 44 years?
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The way my teacher taught me how to estimate is look at the neighbor to 44 and 12. The only time 44 can become 50, is when the neighbor is 5 or up. Same thing for 12. Now, multiply 40 and 10.

40 x 10 = 400.

Therefore, your estimate is 400.

The real answer is 520 breaths.
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