3 years ago

Which of the following would have the greatest force of gravitational attraction?

Physics

1 answer:

zysi [14]3 years ago

4 0

Which of the following is it though...?

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A small candle is 38 cm from a concave mirror having a radius of curvature of 24 cm. (a) what is the focal length of the mirror?

Finger [1]

For a concave mirror, the radius of curvature is twice the focal length of the mirror:
$r=2f$
where f, for a concave mirror, is taken to be positive.

Re-arranging the formula we get:
$f= \frac{r}{2}$
and since the radius of curvature of the mirror in the problem is 24 cm, the focal length is
$f= \frac{24 cm}{2} = 12 cm$

8 0

3 years ago

Velocity of an object of mass 5 kg increases from 3 m/s to 7 m/s on applying a force continuously for 2 s. Find out the force ap

Alenkasestr [34]

Answer:

Force=10N

Velocity=13m/s

Explanation:

Given,

Mass = 5kg

initial velocity=3m/s

Final velocity=7m/s

Time=2s

Now acceleration= v-u/t

=7-3/2

=4/2

=2m/s²

So, acceleration=2m/s²

Now,

F=ma

=5*2

=10N

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2 years ago

Do atoms have mass ?

MArishka [77]

There are not enough electrons in atoms to affect the total mass, so the total mass is just the weight of the protons and neutrons.

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3 years ago

Identify which method of thermal energy transfer would be fastest through a vacuum, which would be fastest through a gas, and wh

Blizzard [7]

Answer:

vacuum-radiation

gas-convection

solid-conduction

Explanation:

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3 years ago

F Penny's piston is wider than Pauly's, who is pushing with greater force?

Anastasy [175]

<span>A Penny is exerting the greater force.
B Pauly is exerting the greater force.
C They are both using equal force.
Think its A or C</span>

8 0

3 years ago

Read 2 more answers