City b is northwest of city a and the 400 mile trip by car takes 8 hours. city b is exactly 320 miles nw of city a if able to travel in a straight line. what is the velocity of the car?

0 mph n
40 mph nw
50 mph nw
80 mph ne

Which of the following are properties of mechanical waves? check all that apply ⭕️ particles of the medium move back and fourth, but do not move with the wave. ⭕️ the particles of the medium always move parallel to the wave motion. ⭕️ wave motion begins with a disturbance in the medium. ⭕️ waves transport energy from a source outward, away from the source.

Herbivores, carnivores, and omnivores are all types a. decomposers b. producers c. consumers d. biomes

Arotating space station is said to create “artificial gravity”—a loosely-defined term used for an acceleration that would be crudely similar to gravity. the outer wall of the rotating space station would become a floor for the astronauts, and centripetal acceleration supplied by the floor would allow astronauts to exercise and maintain muscle and bone strength more naturally than in non-rotating space environments. if the space station is 200 m in diameter, what angular velocity would produce an “artificial gravity” of 9.80 m/s^{2} 2 at the rim?