2 years ago

Drawbacks to which energy source include build up of silt or disruption of salmon migration?

Physics

1 answer:

erma4kov [3.2K]2 years ago

4 0

Your answer would be D, Hydroelectric power

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A rock falls 15 m. is this vertical or horizontal motion? what is the displacement?

Irina-Kira [14]

Displacement will be 15 too because
It falls from 0 till 15 meters

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3 years ago

How many basic states of matter exist?<br> three<br> two<br> five<br> four

djverab [1.8K]

Answer:

There are four basic states of matter

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2 years ago

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An electron moves at 2.80 ×106 m/s through a region in which there is a magnetic field of unspecified direction and magnitude 7.

d1i1m1o1n [39]

Answer:

$a = 3.73*10^{16}m/s^2$

Explanation:

The magnetic force is given by the equation,

$\vec{F}_{magnetic} = q (\vec{v}X\vec{B})$

$\vec{F}_{magnetic} = qvBsin\theta$

Where $\theta$ is the angle between velocity vector and the magnetic field,

That angle is 90°.

We know as well that

F=ma, replacing the mass and the acceleration in our previous equation we have

$ma = qvBsin\theta$

$a= \frac{qvBsin\theta}{m}$

Our values are,

$q= 1.6*10^{-19}c$

$v=2.8*10^6m/s$

$B=7.6*10^{-2}T$

$m=9.11*10^{-31}kg$

Substituting,

$a = \frac{(1.6*10^{-19})(2.8*10^6)(7.6*10^{-2})}{9.11*10^{-31}}$

$a = 3.73*10^{16}m/s^2$

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3 years ago

The compound formed from the elements calcium and chlorine is known as

daser333 [38]

Answer:

calcium chloride

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an inorganic compound,a salt with the chemical formula CaCl2

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2 years ago

What is a subduction zone?

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The correct answer is:

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