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fredd [130]
3 years ago
15

A concave mirror is used as a reflector ina torch light?

Physics
1 answer:
4vir4ik [10]3 years ago
8 0

Answer:

A concave mirror is used as a torch reflector. ... When a light bulb is placed at the focus of a concave mirror reflector, the diverging light rays of the bulb are collected by the reflector. These rays are then reflected to produce a strong, parallel-sided beam of light.

Explanation:

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How to find final velocity
shepuryov [24]

Answer:

Explanation:

The equation or formula for velocity is similar to speed. To figure out velocity, you divide the distance by the time it takes to travel that same distance, then you add your direction to it.

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A person is pushing a book lying on a table. Identify the different forces that act on
BaLLatris [955]

Explanation:

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3 0
3 years ago
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What would increase the force of gravity between two objects?
yulyashka [42]
By Newton's Law of Universal Gravitation.

F =  GMm/r²

Where F is Force of Gravitation, M = Mass of first object, m = mass of second object, r = distance of separation

From the formula, you can see that if the masses, M and m, increased, the value of F would definitely increase as well.

And if r increased the value of F would be reduced because you would be dividing by a bigger number, but when the value of r is decreased the value of F would be increased, because you would then be dividing by something smaller. Note the r is at the denominator of the formula.

So F would increase if there was increase in Masses and decrease in distance.

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3 0
2 years ago
If an astronaut can jump straight up to a height of 0.6 m on earth, how high could he jump on the moon?
Zinaida [17]

Answer:

Explanation:

Given

Person on earth can jump to a height s=0.6\ m

initial velocity is u

using

v^2-u^2=2as

where v=final velocity

u=initial velocity

a=acceleration

s=displacement

final velocity is zero

s=\frac{u^2}{2g}

0.6=\frac{u^2}{2g}-----1

On moon surface acceleration due to gravity is \frac{1}{6}[/tex] th of earth gravity

so height attained is given by

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divide 1 and 2 we get

h=6\times 0.6=3.6\ m                    

4 0
2 years ago
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IgorLugansk [536]

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5 0
3 years ago
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