2 years ago

A farmer had 15 sheep, and all but 8 died. How many are left?

Physics

2 answers:

OLEGan [10]2 years ago

7 0

8 because all died except the 8, the question gives the answer

Troyanec [42]2 years ago

3 0

So he has 7 sheepleft if i did it correctly
15-8=7

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The cylinder in the picture is rotating at 500 RPMs. The friction coefficients between the cylinder and block B are static=0.5 a

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<h3>The Radius of the System</h3>

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The normal force

$f = \mu N = (M_a + M_b) g\\\mu (M_a + M_b) \omega ^2 R = M_a + M_b\\R = \frac{1}{\mu \omega ^2 R}\\\mu_s = 0.5\\R = \frac{1}{0.5 * (\frac{500 * 2\pi}{60})^2 }\\R = 0.0073m\\R = 7.3mm$