The water level in a tank is 34 ft above the ground. a hose is connected to the bottom of the tank at the ground level and the nozzle at the end of the hose is pointed straight up. the tank cover is airtight, but the pressure over the water surface is unknown. determine the minimum tank air pressure (gage) that will cause a water stream from the nozzle to rise 72 ft from the ground.

Why are graphs useful when interpreting data

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)

Engines for propeller-driven aircraft are limited in their maximum rotational speed by the fact that the tip speed of the propeller must not approach the speed of sound in air (mach i). taking 6 ft as a typical diameter for a propeller of a light airplane and 1100 fils as the speed of sound, find the upper limit on the rpm (revolutions per minute) of the propeller shaft.