Levi Malone is sledding with his friends in the frozen tundra. Angered by a coarse comment, he decides to separate from the group rather than
escalate the situation. He momentarily exerts a 30 N force on the rope
which is attached to his 4.8 kg sled. The rope makes an angle of 21° with
the horizontal nearly frictionless surface. determine the acceleration

What happens to light waves from a star as the star moves away from earth?

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

An electron is traveling with initial kinetic energy k in a uniform electric field. the electron comes to rest momentarily after traveling a distance d. (a) what is the magnitude of the electric field