A stone is thrown downward at a velocity of 5 m/s from the top of a cliff 65 m above the ground below. How long will it take to hit the ground below?

Time = 13 seconds

Explanation:

Given the following data;

Speed = 5m/s

Distance = 65m

To find the time;

Speed = distance/time

Time = distance/speed

Time = 65/5

Time = 13 seconds

Therefore, it will take the stone 13 seconds to hit the ground below.

in this image, you can see solar radiation going through ocean water.

no image, but probably absorption

1/0.14nm = 10^10/1.4 a lot