Sine wave A has a positive-going zero crossing at 30 degrees from a reference. Sine wave B has a positive-going zero crossing at 45 degrees from the same reference. Determine the phase angle between the two signals. Which signal leads?

The flow rate of air through a through a pipe is 0.02 m5/s. a pitot static tube is placed in the flow. the radius of the pitot static tube is 1 mm. assuming the flow to be steady and the air to be at 300k, calculate the difference in total and static pressure if the diameter of the pipe is: (a) d 0.1 m d 0.05 m (c) d 0.01 m

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?