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Nat2105 [25]
3 years ago
7

Is Micah a idiot true or false ooooooooooooooooooooooooooooooooooo

Engineering
1 answer:
Vedmedyk [2.9K]3 years ago
6 0
False because yeah jkdkdlgkdjfkekvkx
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Two hemispherical shells of inner diameter 1m are joined together with 12 equally spaced bolts. If the interior pressure is rais
aliina [53]

Answer:

  F = 2,355 10⁵ N

Explanation:

The pressure is distributed throughout the sphere with the same value and is defined by

           P = F / A

           F = P A

Therefore, on each bolt there is an internal force and external force

      ∑ F = F_int - F_ext

      ∑ F = P_int A - P_atm A

      F = A (P_int - P_atm)

     P_int = 300 10³ + P_atm

     F = A 300 10³

The area of ​​the sphere layer is

    A = π r² = π/ 4 d²

    A = π / 4 1²

    A = 0.785 m2

   

    F = 0.785 (300 10³)

    F = 2,355 10⁵ N

6 0
3 years ago
The themes around which social sciences texts are organized boost understanding by
Nadya [2.5K]

Answer:

  • <em>Facilitating an immensely focused setting where one does not get carried away </em>
  • <em>Creates an easier means to develop essays in relation to targeted themes </em>
  • <em>Developing "umbrellas" that one can create sub groups that a reader comes across </em>
  • <em>Instilling a directive path for vocabulary reading</em>
7 0
3 years ago
The cross-section of a rough, rectangular, concrete() channel measures . The channel slope is 0.02ft/ft. Using the Darcy-Weisbac
bazaltina [42]

Answer:

The following are the answer to this question:

Explanation:

In point a, Calculating the are of flow:

\bold{Area =B \times D_f}

         =6\times 5\\\\=30 \ ft^2

In point b, Calculating the wetter perimeter.

\bold{P_w =B+2\times D_f}

      = 6 +2\times (5)\\\\= 6 +10 \\\\=16 \ ft

In point c, Calculating the hydraulic radius:

\bold{R=\frac{A}{P_w}}

   =\frac{30}{16}\\\\= 1.875 \ ft

In point d, Calculating the value of Reynolds's number.

\bold{Re =\frac{4VR}{v}}

     =\frac{4V \times 1.875}{1 \times 10^{-5} \frac{ft^2}{s}}\\\\

     =750,000 V

Calculating the velocity:

V= \sqrt{\frac{8gRS}{f}}

   = \sqrt{\frac{8\times 32.2 \times 1.875 \times 0.02}{f}}\\\\=\frac{3.108}{\sqrt{f}}\\\\

\sqrt{f}=\frac{3.108}{V}\\\\

calculating the Cole-brook-White value:

\frac{1}{\sqrt{f}}= -2 \log (\frac{K}{12 R} +\frac{2.51}{R_e \sqrt{f}})\\\\ \frac{1}{\frac{3.108}{V}}= -2 \log (\frac{2 \times 10^{-2}}{12 \times 1.875} +\frac{2.51}{750,000V\sqrt{f}})\\

\frac{V}{3.108} =-2\log(8.88 \times 10^{-5} + \frac{3.346 \times 10^{-6}}{750,000(3.108)})

After calculating the value of V it will give:

V= 25.18 \ \frac{ft}{s^2}\\

In point a, Calculating the value of Froude:

F= \frac{V}{\sqrt{gD}}

= \frac{V}{\sqrt{g\frac{A}{\text{Width flow}}}}\\

= \frac{25.18}{\sqrt{32.2\frac{30}{6}}}\\\\= \frac{25.18}{\sqrt{32.2 \times 5}}\\\\= \frac{25.18}{\sqrt{161}}\\\\=  \frac{25.18}{12.68}\\\\= 1.98

The flow is supercritical because the amount of Froude is greater than 1.  

Calculating the channel flow rate.

Q= AV

   =30x 25.18\\\\= 755.4 \ \frac{ft^3}{s}\\

4 0
3 years ago
A water-filled manometer is used to measure the pressure in an air-filled tank. One leg of the manometer is open to atmosphere.
ddd [48]

Answer:

P = 150.335\,kPa (Option B)

Explanation:

The absolute pressure of the air-filled tank is:

P = 101.3\,kPa + \left(1000\,\frac{kg}{m^{3}} \right)\cdot \left(9.807\,\frac{kg}{m^{3}} \right)\cdot (5\,m)\cdot \left(\frac{1\,kPa}{1000\,Pa} \right)

P = 150.335\,kPa

4 0
3 years ago
Which of the following factors does not promote safety in the shop?
sergey [27]
“Thinking about pleasant things to pass the time” would not promote safety in the shop because it would be taking the focus away from important tasks, which in turn decreases safety.
6 0
3 years ago
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