Bi points 22 points answer now. tungsten wire is used as the filament in light bulbs. it glows white-hot as current passes through it. tungsten is used in light bulbs because its high converts electric energy into light and heat

By what factor does the drag force on a car increase as it goes from 65 to 110 km/h?

Ahot-air balloon takes off from the ground traveling vertically with a constant upward acceleration of magnitude g/4. after time interval δt, a crew member releases a ballast sandbag from the basket attached to the balloon. how many seconds does it take the sandbag to reach the ground? (express your answer in terms of δt)

Aspacecraft that renters the earth’s atmosphere drastically slows down. the amount of kinetic energy the spacecraft has as it reenters the earths atmosphere