if the interior of the submarine is kept at atmospheric pressure, what will be t
ID: 1774879 • Letter: I
Question
if the interior of the submarine is kept at atmospheric pressure, what will be the magnitude of the net force on the porthole, in newtons? (10%) Problem 7: The Seawolf class nuclear submarines have a crush depth of approximately d = 725 m. The density of seawater is 1.03x 103 kg/m3 Atmospheric pressure is Po = 1.01-105 Pa 50% Part (a) Find the inward force of the water, in newtons, at crush depth on a circular porthole with a radius of r-0. // m. 50% Part (b) If the interior of the submarine is kept at atmospheric pressure, what will be the magnitude of the net force on the porthole in newtons? Grade Summary Deductions99 Potential Fnet 383800 91° cosO cotan) asin acos0 atan0 acotan sinho . Degrees Radians Submissions Attempts remaining (3li per attempt) detailed view 7 8 9 HODE cotanh()-1 END cosh()! tanto-l NO BACKSPACECLEAR Submit Hint I gire upExplanation / Answer
(A) P = P0 + rho g h
P = (1.01 x 10^5) + (1.03 x 10^3)(9.8)(725)
P = 7.42 x 10^6 Pa
F = P A = 2.82 x 10^5 N .......Ans
(B) Fnet = (2.82 x 10^5) - (1.01 x 10^5 x pi x 0.11^2)
Fnet = 2.78 x 10^5 N ...Ans
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.