9 is D I believe, I don't know about 10
Answer:
ambas
Explanation:
Tendrían el mismo sonido ya que la intensidad es la misma.
Answer:
628.022466 N
8.61 m/s
Explanation:
m = Mass
= Coefficient of friction
t = Time taken
u = Initial velocity
v = Final velocity
s = Displacement
a = Acceleration
g = Acceleration due to gravity = 9.81 m/s²

Magnitude of frictional force is 628.022466 N


Initial speed of the player is 8.61 m/s
A) the sound waves were pushed closer together