Auniform square crate is released from rest with corner d directly above a and it rotates about a until its corner b impacts the floor and then it rotates about b. the floor is rough enough to prevent slipping and the corner at b does not rebound on impact. determine, (a) as a function of g and `, the angular velocity of the crate ! e2 just before impact. (b) as a function of ! e2, the angular velocity of the crate immediately after impact ! e3. (c) the fraction of energy lost during the impact. (d) the maximum achieved after the impact. during the impact, assume that the weight force is non-impulsive.

What are the theoretical properties of a gas at a temperature of 0 kelvin?

Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?

Asteel tube (k=50 w/mk) of inner and outer diameter di = 20mm and do=26mm, respectively, is used to transfer heat from hot gases flowing over the tube (h-hot = 200w/m2k) to cold water flowing through the tube (h-cold = 8000 w/m2k). what is the cold-side overall heat transfer coefficient uc? to enhance heat transfer 16 straight fins of rectangular profile are installed longitudinally along the outer surface of the tube. the fins are equally spaced around the circumference of the tube, each having a thickness of 2mm and a length of 15mm. what is the corresponding overall heat transfer coefficient uc? *solve for uc in both cases*