During a practice drill, a runner jogs 10.0 m [W] in 2.00 s, then sprints another 20.0 m [E] in 3.00 s. Determine the runner's: (use v=d/t for questions 8c and 8d)

Oxygen and hydrogen gas are at the same temperature t.what is the ratio of kinetic energies of oxygen molecule and hydrogen molecule if oxygen is 16 times heavier than hydrogen.

Sound is a disturbance that travels through a medium as a

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?