Answer:
B.) Visit a healthcare professional
Explanation:
Their judgement is much better than a friend's or your own.
<span>K.E = 0.5 * m * v^2 ( m = mass(Kg), V = Velocity(m/s)
= 0.5 * 8 * 5^2
= 4 * 25
= 100 J </span>
Wave speed = frequency * wavelength
Wave speed = 4 * 25
Wave speed = 100 m/s
