A target is 450m away and a device is capable of firing a projectile at 80 m/sec. What should the firing angle be set at to hit the target? Use g = -9.81 m/sec². (Answer in degrees with a precision of 0.00 - do not include units in your answer) *

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