Answer:
The initial velocity of the ball is <u>39.2 m/s in the upward direction.</u>
Explanation:
Given:
Upward direction is positive. So, downward direction is negative.
Tota time the ball remains in air (t) = 8.0 s
Net displacement of the ball (S) = Final position - Initial position = 0 m
Acceleration of the ball is due to gravity. So,
(Acting down)
Now, let the initial velocity be 'u' m/s.
From Newton's equation of motion, we have:

Plug in the given values and solve for 'u'. This gives,

Therefore, the initial velocity of the ball is 39.2 m/s in the upward direction.
A transverse wave (electromagnetic wave) carries energy through space.
In the electromagnetic spectrum, "Blue" is the "highest" <span>frequency color of visible light.
Or I</span>n the electromagnetic spectrum, "Red" is the "Lowest" frequency color of visible light.
Hope this helps!