As sea floor spreading occurs, the oceanic plate

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

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

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f