The intensity of a particular earthquake wave is measured to be 9.0 ✕ 106 J/m2·s at a distance of 52 km from the source.
(a) What was the intensity when it passed a point only 2.0 km from the source? J/m2·s(b) What was the rate energy passed through an area of 5.0 m2 at 2.0 km? W
a) I = k/d^2 Put I = 9.0x10^6 and d =52. Find k=2.4336*10^10 I'=k/(9km)^2=300444444.4 b) remember I = Power/Area. I = P/A. You are being asked for power (rate of energy flow). So use : P = I x A=300444444.4*25=7511111111
Content will be erased after question is completed.
Enter the email address associated with your account, and we will email you a link to reset your password.
Forgot your password?