What is the average velocity from 0 to 5 seconds ?

An object moves from position +34m to the position -15m in 15 seconds. what is the total displacement? what is the total velocity?

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical

Asatellite component is in the shape of a cube with 10cm edges, has an evenly distributed mass of 2 kg and one bolt hole at each of four corners. if the maximum predicted random vibration environment is 10 grms, what bolt size would be a good choice for restraint? what other factors might drive bolt size besides force/stress?