Please help I’m so confused

Physics

1 answer:

elena55 [62]3 years ago

5 0

Answer:

The velocity of sound is greatest in option a water option be here option c vacancy option d metals.

Explanation:

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A heavy turntable, used for rotating large objects, is a solid cylindrical wheel that can rotate about its central axle with neg

scoundrel [369]

Answer:

a) $I = 113.014\,kg\cdot m^{2}$ , b) $m = 2075.556\,kg$

Explanation:

a) The turntable has the following physical model by using Newton's laws:

$F \cdot R = I \cdot \alpha$

The moment of inertia is:

$I = \frac{F\cdot R}{\alpha}$

$I = \frac{(300\,N)\cdot(0.33\,m)}{0.876\,\frac{rad}{s^{2}} }$

$I = 113.014\,kg\cdot m^{2}$

b) The moment of inertia for a solid cylinder:

$I = \frac{1}{2}\cdot m \cdot R^{2}$

The mass of the turntable is:

$m = \frac{2 \cdot I}{R^{2}}$

$m = \frac{(2)\cdot (113.014\,kg\cdot m^{2})}{(0.33\,m)^{2}}$

$m = 2075.556\,kg$

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How do you think scientists figure out what they think the population will be in 2050?

laila [671]

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4 years ago

The orbit of an object is caused by what two factors *

amm1812

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An object has a kinetic energy of 14 j and a mass of 17 kg how fast is the object moving

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