Which of the following is NOT one of the types of precipitation? a
sleet
b
rain
c
hail
d
wind

Will you chech and finish these for me, because i am stumped with them.

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

What is the measurement of how fast an object moves relative to a reference point?