Questions
12. If a Hall voltage of 2.50 x 10^-3V is produced by a 0.300-T field applied...

12. If a Hall voltage of 2.50 x 10^-3V is produced by a 0.300-T field applied across a 1.50-cm-diameter aorta, what is the blood velocity inside?

14. A solenoid has 300 turns and a length of 10.0 cm. When a current of 2.50 A flows through the solenoid, how strong is the magnetic field produced inside it?

15. In a mirror's ray diagram, the distance between the object and the image is 30 cm. The magnification of the image is -0.3. What type of mirror is used and what is the focal length of the mirror?

In: Physics

A square conducting loop of side length a = 24 cm sits in three-dimensional space, such...

A square conducting loop of side length a = 24 cm sits in three-dimensional space, such that its area vector points along the vector -i - 4j + k.

A uniform magnetic field of strength B = 0.04 mT points along the positive z-axis.

A current of I = 0.3 mA is run through the loop. Find the net force on the loop.

Find the torque on the loop. (Note it should be of the form (Tx , Ty , Tz) with appropriate numbers)

What is the magnetic dipole moment of the current loop?

In: Physics

The reliability of a particular skin test for tuberculosis (TB) is as follows: the sensitivity of...

The reliability of a particular skin test for tuberculosis (TB) is as follows: the sensitivity of the test is 0.9 (the test comes back positive 90% of the time if the subject has TB) and the specificity of the test is 0.95 (if the subject does not have TB, the test comes back negative 95% of the time). In a large population, only 0.3% (0.003) of the people have TB. A person is selected at random and given the test, which comes back positive.

a) create a hypothetical 100,000 table to answer question b.

b) What is the probability that that person actually has TB?

In: Statistics and Probability

You are analysing four different stocks. The expected market return is 10% with a standard deviation...

You are analysing four different stocks. The expected market return is 10% with a standard deviation of 20%. The risk free-rate is 2%. Assume the Capital Asset Pricing Model (CAPM) holds and you base your conclusion completely on CAPM. Indicate in the table below which of the following securities is underpriced, overpriced or correctly priced.

Security

Expected Return

Standard Deviation

Beta

Price?

Omega

16%

25%

1.5

Psi

5%

3%

0.5

Chi

10%

17%

1.2

Phi

6%

4%

0.3

In: Finance

A Unity feedback system has an open loop transfer function of G(s) = K / s...

A Unity feedback system has an open loop transfer function of

G(s) = K / s (s+1) (s+5)

Draw the root locus plot and determine the value of K to give a damping ratio of 0.3 A network having a transfer function of 10(1 +10s) /(1 +100s) is now introduced in tandem. Find the new value of K, which gives the same damping ratio for the closed -loop response. Compare the velocity error constant and settling time of the original and the compensated systems

In: Electrical Engineering

The Soccer Club has 2 games schedule once the pandemic ends. After the exam the students...

The Soccer Club has 2 games schedule once the pandemic ends. After the exam the students find out that the team has a 0.3 probability of not losing the first game, and a 0.6 probability of not losing the second game, independent of the first. If it does not lose a game, the team is equally likely to win or tie, independent of what happens in the other game. The team will receive 2 points for a win, 1 for a tie, and 0 for a loss.

The coach ask you to Find the PMF of the number of points that the team earns over the weekend?

In: Statistics and Probability

Medical marijuana is a controversial subject that appears in the news on a regular basis. Should...

Medical marijuana is a controversial subject that appears in the news on a regular basis. Should it be legalized for medical purposes, for any purpose (like in Colorado), or should the new strain of Cannabis (Charlotte’s Web), which has less than 0.3% THC (this is the chemical that creates the high) be used instead? The formal paper for this class will discuss the two types of marijuana and whether either one should be legalized for medical purposes or legalized for general purposes. Meet the page of 3-4 pages

I will give you a like and a comment

In: Nursing

3. A random sample of wolf dens in the southwestern United States is taken. The number...

3. A random sample of wolf dens in the southwestern United States is taken. The number of pups found are:

5 8 7 5 3 4 3 9 5 8 5 6 5 6 4 7

a. Find a 90% confidence interval for the population mean number of wolf pups per den. Include the sample statistics, degrees of freedom, LaTeX: t_{\frac{\alpha}{2}}t α 2 , standard error and a sentence.
b. What sample size is needed for the margin of error to be 0.3?   

In: Statistics and Probability

A pension fund manager is considering three assets. The first is a stock fund, the second...

A pension fund manager is considering three assets. The first is a stock fund, the second is a long-term government and corporate bond fund, and the third is a T-bill yielding 0.06. The probability distribution of the risky funds is as follows:

Expected ret. std. dev.
Stock fund 0.18 0.3
Bond fund 0.12 0.14

The correlation between the fund returns is 0.2.

What is the expected return of the optimal risky portfolio?

Round your answer to 4 decimal places. For example if your answer is 3.205%, then please write down 0.0321.

In: Finance

Caro Manufacturing has two production departments, Machining and Assembly, and two service departments, Maintenance and Cafeteria....

Caro Manufacturing has two production departments, Machining and Assembly, and two service departments, Maintenance and Cafeteria. Direct costs for each department and the proportion of service costs used by the various departments for the month of August follow:

Proportion of Services Used by
Department Direct Costs Maintenance Cafeteria Machining Assembly
Machining $ 120,000
Assembly 74,000
Maintenance 53,000 0.3 0.5 0.2
Cafeteria 40,000 0.6 0.2 0.2

Required:

Use the reciprocal method to allocate the service costs. (Matrix algebra is not required.)

In: Accounting