You are on in line skates at the top of a small hill. your potential energy is equal to 1,000.j. the last time you checked, your mass was 60.0kg. ?

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Why don't you see your reflection in water with waves or repples

Examine the equation. 23490th→23088ra+42he what kind of barrier would you need to block the radioactive particles from this reaction? a.a piece of paper b.a sheet of aluminum foil c. a two-inch block of lead d. a solid concrete block