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Helen [10]
3 years ago
12

A stainless steel cap covers a drain in the dolphin tank which is 15 ft deep. The diameter of the hole is 3 in and the cap and w

ire weigh 4 lb. The specific weight of salt water is 64 lb/ft3. What is the hydrostatic pressure from the water on the cap?

Engineering
1 answer:
dusya [7]3 years ago
4 0

Answer:

Explanation:

Given that

h= 15 ft

d= 3 in

We know that 1 in = 0.0833 ft

d= 0.25 ft

Weight ,wt= 4 lb

Specific weight = 64 lb/ft3

The area A\

(See image)

The hydraulic pressure = 47.04 lb

We have to apply 51.04 lb force to open the drain.

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A fluid has a viscosity of 13 P and a specific gravity of 0.94. Determine the kinematic viscosity of this fluid in units of ft²/
OlgaM077 [116]

Answer:

kinematic viscosity is 0.0149 ft²/s

Explanation:

given data

specific gravity S = 0.94

density ρ = 0.94 × 1000

viscosity  μ = 13 Poise = 1.3 Pa-sec

we know 1 poise = 0.1 pas

to find out

kinematic viscosity

solution

we will apply here Kinematic viscosity formula that is

kinematic viscosity = \frac{\mu}{\rho}   ..................1

put here value in equation 1

and here  ρ is density and μ is viscosity

kinematic viscosity = \frac{1.3}{0.94*1000}

kinematic viscosity = 1.382978 × 10^{-3} m³/s

so kinematic viscosity is 0.0149 ft²/s

3 0
3 years ago
What's the best way to find the load capacity of a crane? Select the best option. Call the manufacturer Ask co-workers Look at t
Orlov [11]

Answer: You need to lift a load of 15 tons (30,000 pounds) a distance of 25 feet. The distance is measured from the center pin of the crane to the center of the load. Once you determine the distance, look on that line for the largest capacity; that will indicate how many feet of boom must be extended

Explanation:

5 0
3 years ago
Write multiple if statements:
lora16 [44]
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3 0
3 years ago
For some transformation having kinetics that obey the Avrami equation, the parameter n is known to have a value of 1.7. If, afte
luda_lava [24]

Answer:

It would take approximately 305 s to go to 99% completion

Explanation:

Given that:

y = 50% = 0.5

n = 1.7

t = 100 s

We need to first find the parameter k from the equation below.

exp(-kt^n)=1-y

taking the natural logarithm of both sides:

-kt^n=ln(1-y)\\kt^n=-ln(1-y)\\k=-\frac{ln(1-y)}{t^n}

Substituting values:

k=-\frac{ln(1-y)}{t^n}= -\frac{ln(1-0.5)}{100^1.7} = 2.76*10^{-4}

Also

t^n=-\frac{ln(1-y)}{k}\\t=\sqrt[n]{-\frac{ln(1-y)}{k}}

Substituting values and y = 99% = 0.99

t=\sqrt[n]{-\frac{ln(1-y)}{k}}=\sqrt[1.7]{-\frac{ln(1-0.99)}{2.76*10^{-4}}}=304.6s

∴ t ≅ 305 s

It would take approximately 305 s to go to 99% completion

8 0
3 years ago
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MCQ : What are the main the constituents of acid rains?
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