3 years ago

Based on the velocity-time graph given, the acceleration of the object is..

Physics

1 answer:

fredd [130]3 years ago

4 0

It’s gonna have to b since it’s decreasing

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Explanation:

It is given that,

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We know that the volume of the cylinder is given by :

$V=\pi r^2 h$

$108=\pi r^2 h$

$h=\dfrac{108}{\pi r^2}$ ............(1)

The upper area is given by :

$A=32r^2+2\pi rh$

$A=32r^2+2\pi r\times \dfrac{108}{\pi r^2}$

$A=32r^2+\dfrac{216}{r}$

For maximum area, differentiate above equation wrt r such that, we get :

$\dfrac{dA}{dr}=64r-\dfrac{216}{r^2}$

$64r-\dfrac{216}{r^2}=0$

$r^3=\dfrac{216}{64}$

r = 1.83 m

Dividing equation (1) with r such that,

$\dfrac{h}{r}=\dfrac{108}{\pi r}$

$\dfrac{h}{r}=\dfrac{108}{\pi 1.83}$

$\dfrac{h}{r}=59 \pi$

Hence, this is the required solution.

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3 years ago

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Answer:

PE = (|accepted value – experimental value| \ accepted value) x 100%

Explanation:

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Describe what causes the flow of electric current.

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An electrical current is caused by flow of free electrons from one atom to another.

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7. Nancy has a mass of 60 kg and sits on the very end of a 3.00 m long plank pivoted in the middle. How much torque must her co-

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Answer:

Torque = 882Nm

Explanation:

Torque = Mg×distance

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D. Carl doesnt score touchdowns very often.

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