Air flows through a pipe with a variable cross section. at the pipe inlet the pressure is 6.0 bars, the temperature is 27? ,the area is 35.0 cm, and the velocity is 60 m/s at the pipe exit the conditions are 5.0 bars and 50°c, and the cross-sectional area is 20.0 cm2. find a) the mass flow rate, in kg/s, and b) the exit velocityin m/s. (1.46 kg/s, 135.7 m/s)

2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon

Which of these is a physical property