How does a seismologist use the graph of time versus distance for seismic waves to find the location of an earthquake’s epicenter?

this is for earth and environmental science, it does not have that subject so i am sorry if this is the wrong category.

What are the characteristics of living things

What is the number of phosphates in an atp molecule

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.