67. i a 200 kg weather rocket is loaded with 100 kg of fuel and
fired straight up. it accelerates upward at 30.0 m/s2 for 30.0 s,
then runs out of fuel. ignore any air resistance effects.
a. what is the rocket's maximum altitude?
b. how long is the rocket in the air?
c. draw a velocity-versus-time graph for the rocket from liftoff
until it hits the ground.

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