May be
May be not
It is depend up on your level of thinkin
But in graduation may be not second option will consider
....
Answer:
The movement of polar bears help figure out the impact of global warming in the arctic. Since polar bears travel over the frozen ocean they are able to determine the rate it melts as the bears retreat inland. The worse global warming become the quicker it becomes hotter in the arctic which is bad by the way.
Explanation:
Answer:
Explanation:
From the schematic we can visualize the situation and the position of the rays falling on the floor.
<em>Considering the given data from the lowest edge of the mirror.</em>
- We get a triangle with height of 1.86 meters.
- In the first instance the base of the triangle is 3.8 meters.
- While in the second instance the base is 1.22 meters.
- Speed of rotation of earth,
<u>Now applying the trigonometric ratio to known sides in the first instance:</u>
<u>Applying the trigonometric ratio to known sides in the second instance:</u>
Now by the law of reflection we know that the angle of incidence is equal to the angle of reflection. So the sun would have been at the same angle on the opposite side of the normal.
<u>Hence the change in angle of the sun with respect to the mirror (also the earth)</u>
<u>Now the time past for this change:</u>