Alens for a spotlight is coated so that it does not transmit yellow light. if the light sources is white, what color is the spotlight

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

What’s #16 asking me and how do i solve it?

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.