Science fiction movies depict astronauts landing on large asteroids. the gravitational force of such bodies is typically less that 0.1 n/kg. given an astronaut with a mass of 77.3 kilograms:

(a) what would his weight be on earth (g= 9.8 n/kg) in newtons and pounds (force)?

(b) what would his weight be on an asteroid (g= 0.08 n/kg) in newtons and pounds (force)?

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

Sound is a disturbance that travels through a medium as a

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up