When an object has orbital motion is velocity and acceleration are. Perpendicular
Parallel

How have the competing explanations' experiments on atoms affected the development of the atomic model?

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct