If the viscosity of a solution is quadrupled, the rms-average distance of a collection of diffusing molecules from their starting point would be over the same amount of time. a. 14 the distance
b. 12 the distance
c. The same distance
d. 2x the distance
e. 4x the distance

At what point the certain object feels zero garvitational force between earth and the moon. take the required information from the book. required: distance away from earth or moon

Air is to be preheated by hot exhaust gases in a cross-flow heat exchanger before it enters the furnace. air enters the heat exchanger at 95 kpa and 20°c at a rate of 0.6 m^3/s. the combustion gases (cp = 1.10 kj/kg°c) enter at 160°c at a rate of 0.95 kg/s and leave at 95°c. determine the rate of heat transfer to the air and its outlet temperature.

Anika asks eva to roll a basketball and then a bowling ball to her. which requires more force to roll, and why?