How much time would it take for the sound of thunder to travel at an average speed of 330 meters per second a distance of 8000

For this car, predict the shape of a graph that shows distance (x) versus time (t). note that time is the independent variable and will be on the bottom axis. need asap

Why did thomson's results from experimenting with cathode rays cause a big change in specific thought about atoms ?

Acar travels at a constant rate for 25 miles, going due east for one hour. then it travels at a constant rate another 60 miles east for one hour. what is the instantaneous velocity at any time during the second hour of the trip? 35 mph east 42 mph east 60 mph east 85 mph east