Now it's your turn 1 The speed of an electron in orbit about the nucleus of a hydrogen atom is
2.2 x 106m 5-1. It takes 1.5 x 10-16s for the electron to complete one orbit. Calculate
the radius of the orbit.

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

In a good thermo flask the main cause of heat loss is

Which of the following is another term for a planned economy