2 years ago

Which of the following will increase the force of gravity between two charged objects without affecting the electric force?

Physics

1 answer:

jasenka [17]2 years ago

3 0

Answer:

I believe the answer is D

Explanation:

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An object is 25.0 cm from the mirror, its height is 5.0 cm, and focal length is 8.0 cm. What is the distance from the image to t

Oksana_A [137]

1.) Use the formula to solve -
   1/f = 1/do + 1/di; Where f = focal length; 1/do + 1/di
   1/f = 1/do + di
   1/8 = 1/25 + 1/?
   .125 = .04 + 1/di
.125 -.04 = 1/di (transferred .04 to the left side of the equation)
.085/1 = 1/di
.085di/.085 = 1/.085 (multiplied both sides by di and divided both sides by .085)
   di = 11.76 or 12
2.) Therefore, 12 cm is the distance from the image to the mirror

3 0

2 years ago

Read 2 more answers

A ball is tossed in the air and released. It moves up, reverses direction, falls back down again, and is caught at the same heig

PolarNik [594]

Answer:

The potential energy has a maximum when the ball is a time that is half of the time for total travel

Explanation:

Generally potential energy is a the varies directly with the height according to this formula

$PE =mgh$