A0.180-kg cube of ice (frozen water) is floating in glycerine. the gylcerine is in a tall cylinder that has inside radius 3.50 cm. the level of the glycerine is well below the top of the cylinder. if the ice completely melts, by what distance does the height of liquid in the cylinder change? does the level of liquid rise or fall? that is, is the surface of the water above or below the original level of the glycerine before the ice melted?

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force

3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0

Ajoint produces movement when its angle decreases. which type of movement is it?