Answer:
D
Explanation:
The wrecking ball transfers kinetic energy to the wall.
B. +Q, + W are the correct sign
Answer:i think it would have to be inside
Explanation:
bc the light has to be refracted (aka has to be inside water)at a angle to see a rainbow with are eyes
Answer:
Explanation:
The ratio of apparent frequency and real frequency is 1.06 . Let v be their velocities . According to Doppler formula for source of sound and observer
approaching each other , the formula is as follows
n = n₀ ( V+v ) / (V-v )
Here V is velocity of sound which is 340 m /s
n / n₀ = ( V+v ) / (V-v )
1.08 =
360.4 - 1.06 v = 340 +v
v = 9.9 m /s.