3 years ago

Plz Help ima fail science... 25 points.

Physics

1 answer:

Neko [114]3 years ago

8 0

Search up criterion and look at the examples and then read it and then make it in your own words

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A sphere of radius 6cm is moulded into a thin cylindrical wire of length 32cm. Calculate the radius of the

suter [353]

Answer:

4/3 pi R^3 = pi r^2 L equating volume of sphere and wire

r = (4 R^3 / 3 * L)^1/2 solving for radius of wire

r = (4 * 6^3 / 3 * 32)^1/2

r = 9^1/2 cm = 3 cm = .03 meters

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2 years ago

A disk rotates around an axis through its center that is perpendicular to the plane of the disk. The disk has a line drawn on it

natka813 [3]

Answer:

$t = \frac{\sqrt{\omega0^2+2*\theta*\alpha} -\omega0}{\alpha}$

Explanation:

The rotated angle is given by:

$\theta=\omega0*t+1/2*\alpha*t^2$

Since this is a quadratic equation it can be solved using:

$x=\frac{-b \± \sqrt{b^2-4*a*c} }{2*a}$

Rewriting our equation:

$1/2*\alpha*t^2+\omega0*t-\theta=0$

$t = \frac{\±\sqrt{\omega0^2+2*\theta*\alpha} -\omega0}{\alpha}$

Since $\sqrt{\omega0^2+2*\theta*\alpha} >\omega0$ we discard the negative solution.

$t = \frac{\sqrt{\omega0^2+2*\theta*\alpha} -\omega0}{\alpha}$

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3 years ago

For stars in the main sequence, which color of stars tend to have higher absolute brightness?

PilotLPTM [1.2K]

White star and dwarf

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3 years ago

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Aaaaa is the answer

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Why is it important to understand the behavior of light when designing and building any type of structure, such as a house, scho

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because it is important

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