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docker41 [41]
3 years ago
12

Unlike a mineral, a rock _____.

Physics
1 answer:
vitfil [10]3 years ago
6 0

Answer:

So unlike a mineral, a rock is a substance composed of one or more minerals

Explanation:

Hello ! Let's solve this!

Minerals are simple natural and inorganic substances. Rocks are a set of many minerals.

So unlike a mineral, a rock is a substance composed of one or more minerals

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Suppose the voltage source for a series RL-circuit were given as V0sin(ωt) instead of V0cos(ωt). Write an expression for the cur
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Answer:

Explanation:

This is an RL circuit, therefore:

Impedance; z = \mathbf{\sqrt{R^2+L^2}}

\mathbf{z = \sqrt{R^2+(Lw)^2}}

Current amplitude

\mathbf{I_o = \dfrac{V_o}{z}} \\ \\  \mathbf{I_o = \dfrac{V_o}{\sqrt{R^2+L^2\omega ^2}}}

a)

Given that:

V_o = 1.9 \ V \\ \\ \omega= 51 \ rad/s\\\\ R = 21 \Omega \\ \\  L = 0.52 H

∴

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b)

Phase constant :

tan  \ \phi = \dfrac{L \omega}{R } \\ \\  tan  \ \phi = \dfrac{0.52 \times 51}{21} \\ \\  tan \phi = 1.263

\text{Phase constant : }\phi = tan^{-1} (1.263)   \\ \\  \phi = 51.6^0\\ \\\text{To radians} \phi  = 51.6 \times \dfrac{\pi}{180} \\ \\  \phi = 0.287 \pi \\ \\ \mathbf{\phi = 0.9 \ rad}

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What processes most directly helps create soil from rocks
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