What is the velocity of a runner who goes 400 min 86.3 s towards the east? A.).2 m/s East
B.)4.6 m/s East
C.)34,520 m/s East
D.)6.4 m/s East

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

Astone is thrown into a pond. what happens to the amplitude of the resulting waves as they get farther from the point where the stone hit the water? explain.

Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?