Adisc with radius r and mass m is free to rotate on a vertical plane about an axis through point a on its rim. assume there is no friction. initially the disc is held at rest so that the centre of the disc, g, is directly above a. the disc is then released. (a) calculate the moment of inertia of the disc for rotation about point a (b) determine the size of the angular velocity when ag is horizontal.

Suppose a soccer ball is kicked from the ground at an angle 20.0º above the horizontal at 8.00 m/s. the y-velocity is determined to be 2.74 m/s. how long will the ball be in the air? assume the ball lands at the same height at which it was kicked.

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

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