(006) Problem 1: A child fills a water gun in a pool. She holds the gun so the n
ID: 1883009 • Letter: #
Question
(006) Problem 1: A child fills a water gun in a pool. She holds the gun so the nozzle is submerged, just below the water's surface (as shown) and the gun tilted at an angle of e- 35° from the horizontal. She pulls on a handle at the lower end of the gun, which pulls a piston down along the length of the gun's cylindrical tank and sucks water into the tank through the nozzle. The tank's length is L 0.68 m. The density of water is = 1.00 x 10° ©theexpertta.com 25% Part (a) Enter an expression for the hydrostatic gauge pressure at the lower end of the gun's tank when it is full of water in terms of the defined quantities and the acceleration due to gravity, g Pas = g L sin(8) / Correct! 25% Part (b) Calculate the hvdrostatic gauge pressure, in pascals, at the lower end of the gun's tank when it is full of water Par= 3826.21 Ph 3826 Correct! 25% Part (c) Now we investigate the dynamics of filling the water guns tank. Assume the child pulls the plunger at a steady speed along the whole length L = 0.68 m of the tank during a time interval of t= 6.8 s. Enter an expression for the dynamic gauge pressure at the lower end of the tank just as the piston is reaching the end of its travel. Grade Summa Deductions Potential Páya gLt sin(e) 0% 100% 7 8 9 HOME cos(a) | cos(q) sin(a)sin(p) | cos() sin() A | ( Submissions Attempts remaining: 16 (090 per attempt) detailed view 0% 0% 0% 0% BACKSPACE DEL CLEAR Submit Hint l give up ints: 296 deduction per hint. Hints remar remaining: 4 Feedback: 0% deduction per feedback. 25% Part (d) Calculate the dvnamic gauge pressure. in pascals, at the lower end of the tank lust as the piston is reaching the end of its travel.Explanation / Answer
Equation you have entered is dimensionally wrong,it's trick to check whether we are going right or not...
Use
velocity =0.68/6.8=0.1m/sec
=(Rho)g(0.68/6.8)t(sintheta)
At start t=0 sec
At end t= 6.8 sec
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