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sweet [91]
3 years ago
12

Find the value of P(-1.5≤Z≤2)

Engineering
1 answer:
Vladimir [108]3 years ago
7 0

Answer:

  0.9104

Explanation:

Suitable technology can tell you the probability.

P(-1.5≤Z≤2) ≈ 0.9104

__

A phone app gives the probability as 0.9104426667829628.

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A common procedure for measuring the velocity of an air stream involves insertion of an electrically heated wire (called a hot-w
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Answer:

V = 6.33 m/s

Explanation:

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- The rate of energy in the wire P:

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- Apply Newton's Law of Cooling:

                            P = h*A*(T_s - T_inf)

                            h =  P /A*(T_s - T_inf)

Plug in the values:

                             h= 0.5/ 0.00003142*(348 - 298)

                             h = 318.27 W /m^2K

- Using the calibration relationship given, compute the velocity of air:

                             V = 6.25*10^-5 * h^2

                             V = 6.25*10^-5 * (318.27)^2

                             V = 6.33 m/s

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