SOLUTION: Earthquakes generate two circular waves, p-waves and s-waves, tht travel outwards. the p-waves travels faster, but generally the s-waves do the most damage. suppose the p-waves ha

Question 73257: Earthquakes generate two circular waves, p-waves and s-waves, tht travel outwards. the p-waves travels faster, but generally the s-waves do the most damage. suppose the p-waves have a velocity of 3.6 miles per second and the s-waves have a velocity of 1.8 miles per second. How long after the earthquake will p-waves and s-waves be 80 miles apart?
Answer by ptaylor(2198) (Show Source): You can put this solution on YOUR website!

distance(d)=rate(r) times time(t) or d=rt; t=d/r
Now we know that when the distance the p-wave travels minus the distance the s-wave travels equals 80 mi, we will have the time we are looking for. So
rt of p wave=3.6t
rt of s wave=1.8t
3.6t-1.8t=80
1.8t=80 divide both sides by 1.8
t=44.4444 sec
ck
3.6(44.44444)-1.8(44.44444)=80
~80=80

Hope this helps----ptaylor

RELATED QUESTIONS
I hate word problems. I have a tough time trying to comprehend them and extract a... (answered by checkley71)

Earthquakes produce several types of shock waves. The most well known are the P-waves (P... (answered by mananth,ikleyn)

Seismographs can record two types of wave energy (P waves and S waves) that travel... (answered by rothauserc,ikleyn)

Seismographs can record two types of wave energy (P waves and S waves) that travel... (answered by ikleyn)

The equation h=0.019s2 is used to model the height in feet of a wave when the wind speed... (answered by KMST)

At 20 degrees C, the speed of sound is approximately 344 m/s. The lower limit of sound... (answered by ankor@dixie-net.com)

b. A warning bouy is observed to rise every 5 seconds as crests of waves pass by it. i. (answered by josmiceli)

a. Water waves have a frequency of 6 Hz and a wavelength of 3 m. i. What is the period... (answered by Boreal)

You observed an anchored boat rise and fall every 8.9 seconds as waves whose crests are... (answered by math_tutor2020)