The elastic band on a catapultis pulled back 0.6 m. If the projectile in the catapult flies forward with a kinetic energy of 439 J, what is the spring constant (in N/m) of the elastic band? Note that the kinetic energy with which the projectile flies forwards is equal to the elastic potential energy of the band just before release.

On a hot saturday morning while people are working inside, the air conditioner keeps the temperature inside the building at 22degreesc. at noon the air conditioner is turned off, and the people go home. the temperature outside is a constant 33degreesc for the rest of the afternoon. if the time constant for the building is 4 hr, what will be the temperature inside the building at 4 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? at 6 : 00 font size decreased by 2 upper p . font size decreased by 2 upper m .? when will the temperature inside the building reach 24degreesc? 324281