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Sagot :
By the velocity, the interval time after the p wave arrived is 6 seconds.
We need to know about velocity to solve this problem. Velocity can be determined as the distance traveled divided by time interval. It can be written as
v = s / t
where v is velocity, s is distance and t is the time interval.
From the question above, we know that.
vp = 5000 m/s
vs = 3000 m/s
s = 45 km = 45000 m
Determine the time taken by p wave
tp = s / vp
tp = 45000 / 5000
tp = 9 seconds
Determine the time taken by s wave
ts = s / vs
ts = 45000 / 3000
ts = 15 seconds
The time interval after p waves is
interval time = ts - tp
interval time = 15 - 9
interval time = 6 second
Find more on velocity at: https://brainly.com/question/25749514
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