The uniform rectangular panel of mass m = 19.6 kg is moving to the right when wheel B drops off the horizontal support rail. Determine the resulting angular acceleration and the force in the strap at A immediately after wheel B rolls off the rail. Neglect friction and the mass of the small straps and wheels. The angular acceleration is positive if counterclockwise, negative if clockwise. The force in the strap is positive if in tension, negative if in compression. The distances are b = 635 mm and h = 275 mm.

The ultracentrifuge is an important tool for separating and analyzing proteins. because of the enormous centripetal accelerations, the centrifuge must be carefully balanced, with each sample matched by a sample of identical mass on the opposite side. any difference in the masses of opposing samples creates a net force on the shaft of the rotor, potentially leading to a catastrophic failure of the apparatus. suppose a scientist makes a slight error in sample preparation and one sample has a mass 10 mg larger than the opposing sample. if the samples are 12 cm from the axis of the rotor and the ultracentrifuge spins at 70,000 rpm, what is the magnitude of the net force on the rotor due to the unbalanced samples? ( be thorough on your answer)

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.

How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters