Because the wall reflects sound waves to your ears bouncing off of the walls, even if it's in another room.
Answer:
Vi = 5 m/s
Explanation:
let (a) acceleration = 0.75 m/s²
(t) time = 20 seconds
Vf = final velocity = 72 km/hr (convert to m/s to units consistency = 20 m/s)
find Initial velocity (Vi)
Vf - Vi
a = -----------
t
Vi = Vf - (a * t) = 20 - (0.75 * 20)
Vi = 5 m/s
<span>c.the chemical energy of the fluids inside the wand</span>
Answer:
the awnser is momentum i did this before
Explanation: