from the leading edge (x=0) of the plate. What is the ratio of the average coefficient between the leading edge and some

location x on the plate to the local coefficient at x?

Donald Johnson
2021-12-16
Answered

For laminar flow over a flat plate, the local heat transfer coefficient $h}_{x$ is known to vary as $x}^{-\frac{1}{2}$ , where x is the distance

from the leading edge (x=0) of the plate. What is the ratio of the average coefficient between the leading edge and some

location x on the plate to the local coefficient at x?

from the leading edge (x=0) of the plate. What is the ratio of the average coefficient between the leading edge and some

location x on the plate to the local coefficient at x?

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asked 2021-05-14

Consider the accompanying data on flexural strength (MPa) for concrete beams of a certain type.

$\begin{array}{|ccccccc|}\hline 11.8& 7.7& 6.5& 6.8& 9.7& 6.8& 7.3\\ 7.9& 9.7& 8.7& 8.1& 8.5& 6.3& 7.0\\ 7.3& 7.4& 5.3& 9.0& 8.1& 11.3& 6.3\\ 7.2& 7.7& 7.8& 11.6& 10.7& 7.0\\ \hline\end{array}$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.$[Hint.\text{}?{x}_{j}=219.5.]$ (Round your answer to three decimal places.)

MPa

State which estimator you used.

$x$

$p?$

$\frac{s}{x}$

$s$

$\stackrel{~}{\chi}$

b) Calculate a point estimate of the strength value that separates the weakest$50\mathrm{\%}$ of all such beams from the strongest $50\mathrm{\%}$ .

MPa

State which estimator you used.

$s$

$x$

$p?$

$\stackrel{~}{\chi}$

$\frac{s}{x}$

c) Calculate a point estimate of the population standard deviation ?.$[Hint:\text{}?{x}_{i}2=1859.53.]$ (Round your answer to three decimal places.)

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

$\stackrel{~}{\chi}$

$x$

$s$

$\frac{s}{x}$

$p?$

d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer to three decimal places.)

e) Calculate a point estimate of the population coefficient of variation$\frac{?}{?}$ . (Round your answer to four decimal places.)

State which estimator you used.

$p?$

$\stackrel{~}{\chi}$

$s$

$\frac{s}{x}$

$x$

a) Calculate a point estimate of the mean value of strength for the conceptual population of all beams manufactured in this fashion.

MPa

State which estimator you used.

b) Calculate a point estimate of the strength value that separates the weakest

MPa

State which estimator you used.

c) Calculate a point estimate of the population standard deviation ?.

MPa

Interpret this point estimate.

This estimate describes the linearity of the data.

This estimate describes the bias of the data.

This estimate describes the spread of the data.

This estimate describes the center of the data.

Which estimator did you use?

d) Calculate a point estimate of the proportion of all such beams whose flexural strength exceeds 10 MPa. [Hint: Think of an observation as a "success" if it exceeds 10.] (Round your answer to three decimal places.)

e) Calculate a point estimate of the population coefficient of variation

State which estimator you used.

asked 2021-09-20

The Otto-cycle engine in a Mercedes-Benz SLK230 has a compression ratio of 8.8.

a) What is the ideal efficiency of the engine? Use$\gamma =1.40$

b) The engine in a Dodge Viper GT2 has a slightly higher compression ratio of 9.6. How much increase in the ideal efficiency results from this increase in the compression ratio?

a) What is the ideal efficiency of the engine? Use

b) The engine in a Dodge Viper GT2 has a slightly higher compression ratio of 9.6. How much increase in the ideal efficiency results from this increase in the compression ratio?

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The total amount to stage an event was 1300.00. Person A spent 175.00 Person B spent 440.00 Person C spent 700.00 and Person D 0.00. What is the fair equal distribution of money

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The radius of a circle with area a is approximately square root of a/3. the area of a circular mouse pad is 51 square inches. estimate its radius to the nearest integer

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How many years are there in 1.4 billion seconds?

asked 2022-07-26

Show how to use black and red chips to carry out the following operation

$7-(-2)=$

and determine the answer.

$7-(-2)=$

and determine the answer.

asked 2021-08-15

To use the concept of proportion to make the given conversion.

Given information: To convert 146.4 ounces to pounds.

Given information: To convert 146.4 ounces to pounds.