Answer:
do explain what u need help with?
Answer:
Explanation:
When two cars collide then the momentum of two cars will remains conserved
- Mass of two cars = 100 kg
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Speed of car B = - 10 m/s
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After collision the speed of car B = +8 m/s
By momentum conservation equation
STEP ONE:
Let you and your friend stand as far away as possible from a large reflecting wall and clap your hands rapidly at a regular rate.
STEP TWO:
Adjust this rate until each clap just coincides with the return of an echo of its predecessor, or until clap and echo are heard as equally spaced.
STEP THREE:
Use a stopwatch to find the time between claps, t. Make a rough measurement of distance to the wall, s. Thus the speed of sound, v = 2s/t
Answer:
Say the object travels from to -A to +A
It will have zero velocity at both points
a) P = 2 * .19 s = .38 sec
b) f = 1 / P = 2.63 sec
c) A (amplitude) = ± A = .41 cm / 2 = 20.5 cm