If Justin is traveling 6 km north in 1 hour in his car, what is his average velocity in Sl units? Velocity = change in distance/change in time (vector: change in magnitude and direction)

Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?

Which of the following is not a characteristic of s waves? a. travel slower than p waves. b. cannot be detected in locations more than 105° from an earthquake’s epicenter. c. travel through solids and liquids. d. only affect coastal regions.

Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?