Two pendulum bobs are hung from strings of the same length. The first bob, of mass m, is released from a height h above the second bob, which has mass 2m. Treat each bob as a point mass. When the first bob hits the second, they stick together and rise to a maximum height H given by:

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

True or false graphs must include scales that increase by the same amount

The necleus of an atom is made up of what subatomic particles?