Asource of emf is connected by wires to a resistor, and electrons flow in the circuit. the wire diameter is the same throughout the circuit. compared to the drift speed of the electrons before entering the resistor, the drift speed of the electrons after leaving the resistor is

Aballet student who learns with the of his instructor is demonstrating learning.

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

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?