The three small spheres are welded to the light rigid frame which is rotating in a horizontal plane about a vertical axis through o with an angular velocity ! ˙= 20 rad /s. if a couple mo = 30 n∙m is applied to the frame for 5 seconds, compute the new angular velocity ! ˙′.

Which planet do you think would be easiest for humans to colonize some day?

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.