Answer:
Barium=2
Lead=4
Bismuth=5
Potassium=1
Both are at the side of the spectrum that has the lower frequency
This interaction is known as <em>constructive interference</em>. It's a result of linear superposition.
Answer: b
Explanation:
p=mv
p=30
m=1500
rearrange to find v
(30)=(1500)(v)
v= 30/1500
v = 0.02 m/s