The focal length of the mirror is 15 cm
From the question given above, the following data were obtained:
Object distance (u) = 30 cm
Image distance (v) = 30 cm
<h3>Focal length (f) =? </h3>
The focal length of the mirror can be obtained as follow:

<h3>Invert </h3><h3>f = 15 cm</h3>
Therefore, the focal length of the mirror is 15 cm
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Answer:
neutron, has no charge
Answer:
a. Smaller nuclei combine to make a larger nucleus.
Explanation:
Nuclear fusion is the process by which several atomic nuclei of similar charge bind and form a heavier nucleus.
In order for fusion to occur, an important energy barrier produced by electrostatic force must be overcome. Over long distances, two nuclei repel each other due to the electrostatic repulsion force between their protons, positively charged. However, if two nuclei can be approached sufficiently, due to the strong nuclear interaction, which is greater over short distances, electrostatic repulsion can be overcome, and fusion takes place.
Answer:
Some are large, some are small, some have more gravity then others. Some cant handle human life. Some are very cold some are very hot.
Explanation:
Answer:
The object has to move a distance when a force is applied to it
Explanation:
For work to be done on a body the force applied must move the body through a particular distance.
Work done = Force x distance
If no distance is moved by the force, no work is done.
Also, the angle between the force and the distance must be 0 to do the maximum work on the body.