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Ede4ka [16]
3 years ago
12

How are reflecting telescopes similar to devices that produce laser light?

Physics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:a

Explanation:

Because its light

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andriy [413]
2 g/mL there’s your answer
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3 years ago
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An electron is moving horizontally east in an electric field that points vertically downward. The electric force on the electron
saveliy_v [14]

Answer:

d. )directed upward.

Explanation:

As the electron has a negative charge, when under the influence of an electric field, is subject to an electric force, which direction is the opposite to the direction of the electric field.

This is because the electric field has the same direction that the force on a positive test charge at the same point.

As the electric field points vertically downward, the electric force on the electron (a negative charge) points vertically upward.

So, the statement d. is the one that results to be true.

7 0
3 years ago
As shown in the diagram below, a rope attached to a 500.-kilogram crate is used to exert a force of 45 newtons at an angle of 65
kaheart [24]

Answer:

19.01 N

Explanation:

F = Force being applied to the crate = 45 N

\theta = Angle at which the force is being applied = 65^{\circ}

Horizontal component of force is given by

F_x=F\cos\theta\\\Rightarrow F_x=45\times \cos65^{\circ}\\\Rightarrow F_x=19.01\ \text{N}

The horizontal component of the force acting on the crate is 19.01 N.

4 0
3 years ago
5. The condition of the road surface affects total stopping distance.<br>A. true<br>B. false​
Tom [10]

Answer:

A true

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7 0
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To determine the height of a bridge above the water, a person drops a stone and measures the time it takes for it to hit the wat
myrzilka [38]

The stone will take 2.89 seconds to hit the water.

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s=ut+\frac{1}{2}gt^2

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8 0
3 years ago
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