Luke walked to band hall going north which is 750m away. It took her 120 s to get there. Then he remembered he had to go to his physics class which is 600m E away. If it took him 600 s to Mrs. H’s room A) how much distance did he travel?

B)how much displacement did he cover?

C) what is his average speed?

D) what is his average velocity ?

What type of relationship exists between the length of a wire and the resistance, if all other factors remain the same? o a. resistance is directly related to length. ob. resistance is directly related to the square of the length. c. resistance is inversely related to the length. d. resistance is inversely related to the square of the length. reset next

At a certain instant after jumping from the airplane a, a skydiver b is in the position shown and has reached a terminal (constant) speed vb = 52 m/s. the airplane has the same constant speed va = 52 m/s, and after a period of level flight is just beginning to follow the circular path shown of radius ρa = 2330 m. (a) determine the velocity and acceleration of the airplane relative to the skydiver. (b) determine the time rate of change of the speed vr of the airplane and the radius of curvature ρr of its path, both as observed by the nonrotating skydiver.

Most of the volume of an atom is occupied by the