A
Excitation to a higher energy state requires energy which is absorbed from the electromagnetic waves applied.
Answer:
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Answer:

Explanation:
<u>Vertical Launch Upwards</u>
In a vertical launch upwards, an object is launched vertically up without taking into consideration friction with the air.
If vo is the initial speed and g is the acceleration of gravity, the maximum height reached by the object is given by:

The tennis ball was thrown straight up with a speed of v0=22.5 m/s. The acceleration of gravity is g=9.81\ m/s^2, thus:


His velocity is 3 m/s in the direction in which he is running in. which.