A ball is thrown at a 30'angle above the horizontal at 3m/s. After 0.50s the horizontal
component of its velocity will be

What is the fate of the electrons that interact with a specimen in an electron microscope?

Mutt and jeff are running along a path each pushing a cart loaded with rocks. if mutt's wagon has a mass two times greater than jeff's and they want to stay together, arriving at their destination at the same time, what must happen? a) jeff should slow down so mutt can catch up. b) mutt must use half as much force to push his cart. c) mutt must use twice as much force to push his cart. d) mutt and jeff will use the same force, but mutt will take bigger steps.

In which of the following is positive work done by a person on a suitcase