Aschool bus travels 100 km/hr for 30 minutes. how far did the bus go?

Alfred pushes on a heavy box, but cannot move it. the box has a lot of inertia motion friction gravity

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

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