Answer:
The arrow is at a height of 500 feet at time t = 2.35 seconds.
Explanation:
It is given that,
An arrow is shot vertically upward at a rate of 250 ft/s, v₀ = 250 ft/s
The projectile formula is given by :

We need to find the time(s), in seconds, the arrow is at a height of 500 ft. So,

On solving the above quadratic equation, we get the value of t as, t = 2.35 seconds
So, the arrow is at a height of 500 feet at time t = 2.35 seconds. Hence, this is the required solution.
Well I would assume it would increase due to the increase in body movement creating more energy
As we know that frequency and wavelength are dependent on each other
and this is given by

here we know that
= wavelength
f = frequency
c = speed of wave
while for energy and intensity of wave we know that
Energy = 
here A = amplitude of wave
so energy directly depends on amplitude of wave
so correct answer will be
<em>A) Energy</em>