CAN SOMEONE PLEASE HELP ME WILL GIVE BRAINLIST!!! QUESTION IS DOWN BELOW>>

Pls pls pls pls ! describe, in your own words, how you found the epicenter of the earthquake.

The velocity of car is 80.0 miles per hour. what is the velocity of car in meters per second? (1 km -0.621 miles) m/s

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)