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8090 [49]
3 years ago
7

An aquarium 5 ft long, 3 ft wide, and 5 ft deep is full of water. (Recall that the weight density of water is 62.5 lb/ft3.) (a)

Find the hydrostatic pressure on the bottom of the aquarium. lb/ft2 (b) Find the hydrostatic force on the bottom of the aquarium. lb (c) Find the hydrostatic force on one end of the aquarium. lb

Mathematics
2 answers:
Cerrena [4.2K]3 years ago
8 0

Answer:

a) hydrostatic pressure at bottom = 10054.375 lb/ft-s2

b) hydrostatic force at bottom = 150815.625 lb-ft/s2

c) hydrostatic force at one end of aquarium = o

Step-by-step explanation:

Detailed explanation and calculation is shown in the image below

3241004551 [841]3 years ago
6 0

Answer:

a) P=312.5 lb/ft^{2}    

b) F=4687.5 lb  

c) F=843.75 lb

Step-by-step explanation:

a) The hydrostatic pressure equation is given by:

P=\rho gd=\delta d

  • ρ is the weight density of water (ρ = 62.5 lb/ft³)
  • d is the deep of the aquarium (d = 5 ft)

So P will be:

P=62.5*5=312.5 lb/ft^{2}            

b) The hydrostatic force of the bottom of the aquarium will be:

F=P*A=P*(long*wide)

F=P*(long*wide)=312.5*5*3                          

F=4687.5 lb          

c) Here we first need to find the horizontal slice of with dx and ad deep x.

The area of this strip is: dA = 3*dx.

So the force will be:

F=\int^{3}_{0}P*dA=\int^{3}_{0}\delta x*3dx=3\delta\int^{3}_{0}xdx=3\delta*\frac{x^{2}}{2}|^{3}_{0}=3\delta(\frac{3^{2}}{2})

F=3*62.5*(\frac{3^{2}}{2})=843.75 lb

I hope it helps you!

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