Your answer would be a, it is a force.
<span> 4. 1 and 2 only.
1. the downward force is the force of gravity.
2. The upward force exerted is the Normal reaction from the floor.
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The snail would travel 100mm
Each minutes is 25mm and it took 4 minutes
4 x 25 = 100
or
25+25+25+25=100
Answer:
Option (D)
Explanation:
Refraction is defined as the phenomenon where the light changes its course of path while travelling from one type of medium to another. This also affects the speed of the light. This process results in the formation of images by the human eyes and lenses.
This process appears to be bending of light. When a light passes from a lighter to a denser medium, it gets bend towards the normal. And when the light passes from a denser to a lighter medium then it gets bend away from the normal.
Thus, the correct answer is option (D).
A lunar eclipse<span> occurs when the Moon enters the Earth's shadow. A </span>solar eclipse<span>occurs when the Moon's shadow falls on the Earth. They do not happen </span>every month<span>because the Earth's orbit around the sun is not in the same plane as the Moon's orbit around the Earth.</span>
