A solid bar is spun about a central axis perpendicular to the bar. What torque is required to accelerate the bar from rest to 50.0 rad/s in 21.5 s if the mass of the bar is 455 g and the length of the bar 35.0 cm?

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

Directions: count the number of atoms. ar co2 na3po4 so3 nac2h3o2

On a mild saturday morning while people are working inside, the furnace keeps the temperature inside the building at 23degreesc. at noon the furnace is turned off, and the people go home. the temperature outside is a constant 16degreesc for the rest of the afternoon. if the time constant for the building is 3 hr, when will the temperature inside the building reach 18degreesc? if some windows are left open and the time constant drops to 2 hr, when will the temperature inside reach 18degreesc?