Guys please answer me i will be really thankful the graph represents the motion of a car moving along a staright highway describe in words the motion car

Which of the following is an example of units for speed

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 coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.