Acceleration will be 9.81 if it goes downwards. If it accelerates upwards it will be -9.81m/s^2
I think it’s D................
I would say A is the answer im not sure tho
Answer:
the angle made by this ray with normal will be 45°
Explanation:
given,
refractive index of crown glass = 1.52
refractive index of the water = 1.33
ray of light in water strikes glass at 45°
angle subtended by the light when it reenter water = ?
When light enter in the glass from the water it get bend toward normal because refractive index of glass is more than water.
And when ray comes out of the glass it is parallel to the initial light ray.
hence, the angle made by this ray with normal will be 45°
The distance between two points on a graph is
Square root of [ (difference in the y-values)² + (difference in the x-values)² ] .
So for these two points, the distance between them is
square root of [ (-5)² + (12)² ] =
square root of [ 25 + 144 ] =
square root of [ 169 ] =
<em>13 .</em>
Yes, the ' 13 ' you typed at the end of the question is the correct answer to it.
