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Murrr4er [49]
3 years ago
7

What is going on in this situation?

Physics
1 answer:
ikadub [295]3 years ago
7 0
The wrecking ball is breaking down a building
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The dimensions of a cylinder are changing, but the height is always equal to the diameter of the base of the cylinder. If the he
VashaNatasha [74]

Answer:

dV/dt  = 9 cubic inches per second

Explanation:

Let the height of the cylinder is h

Diameter of cylinder = height of the cylinder = h

Radius of cylinder, r = h/2

dh/dt = 3 inches /s

Volume of cylinder is given by

V = \pi r^{2}h

put r = h/2 so,

V = \pi \frac{h^{3}}{4}

Differentiate both sides with respect to t.

\frac{dV}{dt}=\frac{3h^{2}}{4}\times \frac{dh}{dt}

Substitute the values, h = 2 inches, dh/dt = 3 inches / s

\frac{dV}{dt}=\frac{3\times 2\times 2}{4}\times 3

dV/dt  = 9 cubic inches per second

Thus, the volume of cylinder increases by the rate of 9 cubic inches per second.

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3 years ago
Describe the difference between the velocity graph made walking at a steady rate and the velocity graph made at an increasing ra
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Answer:

The difference between the velocity graph made walking at a steady rate means that its the same value in time, that means there's no slope on the graph, so its acceleration is 0

On the other hand, if the velocity is increasing with time, the slope of the graph becomes positive, which means that the acceleration of the particle is positive.

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Astronomers infer that the universe is expanding because distant galaxies all appear to ________. Astronomers infer that the uni
valina [46]

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Stretch and moving away from us, with more distant ones moving faster

Explanation:

Astronomers observed that the entire universe is getting bigger because distant galaxies appears to be moving away from us

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The ion has more protons than electrons.

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