A machine weighing 1500N is supported by two chains attached to some point on the machine. One of these ropes goes to the eye bolts in the wall and is inclined at 30o to the horizontal and other go...
A solar collector receiving solar radiation at the rate of 0.6 k W/m2 transforms it to the internal energy of a fluid at an overall efficiency of 50%. The fluid heated to 350 K is used to run a hea...
