msimblante0501

It takes Henry 8 hours longer to paint one room than it does Sally. If they work together Sally and Henry can paint one room in 3 hours. How long does it take Sally in hours, working alone, to paint one room? (Enter an exact number.)

This assignment is designed for those who have experiences with the basic theory of neural network.

Neural network is a branch of artificial intelligence that has proved to be surprisingly useful, especially with the recent wave of development started by "deep learning".

(15pt) Explain the basic idea of neural network and show a neural network can be formulated as a series of matrix-vector product (no more than 1/2 page)

(5pt) Explain the "learning" process can be formulated as an optimization problem involving matrices

(+10pts) [Advanced] A key recent development is the so called "convolutional neural network". Can these be formulated as a series of matrix vector product?

A software development group uses randomly generated computer file names for security. If each name must be created by selecting two letters, with no repeats allowed,
from the set {a, b, c, d, e, f, g} followed by four digits, repeats allowed, from the set of numbers{1, 2, 3, 4, 5, 6, 7, 8}, how many filenames can be created?

his assignment is designed for those who have experiences with the basic theory of neural network.

Neural network is a branch of artificial intelligence that has proved to be surprisingly useful, especially with the recent wave of development started by "deep learning".

(15pt) Explain the basic idea of neural network and show a neural network can be formulated as a series of matrix-vector product (no more than 1/2 page)

(5pt) Explain the "learning" process can be formulated as an optimization problem involving matrices

(+10pts) [Advanced] A key recent development is the so called "convolutional neural network". Can these be formulated as a series of matrix vector product?

The main areas where Python is being used are in software development, web development, data science,, artificial intelligence,, game development, and mobile apps..NK] Big giants companies are using Python as a support language in their research and development fields.. [UNK] is an easy to-understand, relatively low-level language that is suited for data analysis, software, development,, and game programming..NK] also has a wide range of applications in fields like artificial intelligence and machine learning.. 1.. Python is a general purpose, interpreted language. 2.. Python has a rich library with many preexisting functions and modules that can be used in programs without having to write them from scratch. 3.. Python is a popular language for data science and machine learning due to its built-in libraries and modules.. 4. Python has a large community of developers who can answer questions and help you out if you are struggling with using. It.

The, author of this passage, discusses the popularity of Python and its various features. They also mention the high average salary that Python developers can expect..

Given that , fill in the blanks below with the correct value based on the situation given.

•  Press each hotspot.
• -Label the corresponding number below with the value that correctly completes the statement.

 

If  , then  

Throughout most of human history, people lived in relatively small, egalitarian bands. With the advent of farming, stratified societies began to emerge and today dominate the human landscape, explain Diamond’s thesis as to:

A. Why the institutions of stratified societies were forced to emerge in the first place.

1. List the major components of a biological membrane. Describe how they establish selective permeability and provide points of cell-cell recognition and communication.

Cell Biology Short Answer Question: In multipass membrane proteins synthesized in association with membrane-bounded ribosomes of the rough ER, signal-anchor and stop-transfer anchor sequences alternate. What do these sequences do? Compare and contrast Type I, Type II and Type III ER membrane proteins.

What is biology and list the type of biology

The merchandise trade deficit indicates a net outflow of U.S. dollars as the result of

Select one:

A. importing more foreign goods than the U.S. exports to other countries.

B. long-term foreign investment in the U.S. being less than the U.S. invests abroad.

C. exporting more foreign goods than the U.S. imports from other countries.

D. too few charitable contributions made by foreigners to U.S. citizens.

When international trade occurs, currency exchange

Select one:

A. is usually a nice option, but rarely required.

B. can be avoided through careful planning.

C. is both necessary and unavoidable.

D. cannot take place unless both parties are coerced.

Which of the following will lead an American to exchange U.S. dollars for British pounds?

Select one:

A. Importing a case of British beer

B. Purchasing a cottage in the British countryside

C. Investing in the stock of a British firm

D. All of the above

An inflow of U.S. dollars to the U.S. Balance of Payments account will occur when

Select one:

A. the U.S. buys foreign currency in international markets.

B. the U.S. donates foreign aid to other countries.

C. the U.S. exports merchandise to foreign countries.

D. all of the above.

The merchandise trade deficit indicates a net outflow of U.S. dollars as the result of

Select one:

A. importing more foreign goods than the U.S. exports to other countries.

B. long-term foreign investment in the U.S. being less than the U.S. invests abroad.

C. exporting more foreign goods than the U.S. imports from other countries.

D. too few charitable contributions made by foreigners to U.S. citizens.

Under a system of floating exchange rates, which of the following conditions would tend to cause the Canadian dollar to appreciate in value against the U.S. dollar?

Select one:

A. Canadian banks offer lower rates of interest than U.S. banks.

B. The rate of inflation in Canada is lower than in the U.S.

C. There is a rising demand for U.S. goods on the part of Canadian consumers.

D. Canadians perceive that the U.S. is about to experience higher economic growth.

All else held constant, the near-term result of a decrease in the exchange value of Country A's currency against Country B's currency would most likely

Select one:

A. increase A's exports to B.

B. decrease B's trade deficit with A.

C. increase B's exports to A.

D. decrease B's imports from A.

f the U.S. sells $150 million of wheat to Brazil in return for $200 million of Brazilian oil, the $50 million difference will necessarily

Select one:

A. be balanced by other transactions in the U.S. Balance of Payments account.

B. never be paid back, resulting in a $50 million loss for Brazil.

C. require the sale $50 million more wheat to Brazil later on.

D. obligate the U.S. to provide $50 million in foreign aid to Brazil.

Under a system of floating exchange rates, which of the following would tend to cause an increase in the value of a Country A's currency?

Select one:

A. Political instability perceived as increasing the risk of foreign investment in Country A.

B. Central bank intervention to increase the demand for the Country A's currency.

C. The perception that Country A's economy is sliding toward recession in the near future.

D. Country A's central bank expanding the money supply to bring about lower interest rates.

he book discusses central bank intervention in the foreign exchange market to influence the value of a particular currency. I have a couple of questions. How big is the market for foreign currency? Do you think that central bank intervention is a good idea? Why or why not?

Post an approximately 300-word response to the suggested discussion question. There are a number of ways to approach this assignment: consider the reading in relation to its historical or theoretical context; write about an aspect of the week’s reading that you don’t understand, or something that jars you; formulate an insightful question or two about the reading and then attempt to answer your own questions; or respond to another student’s post, building upon it, disagreeing with it, or re-thinking it. In any case, strive for thoughtfulness and nuance. Suggested Discussion Question: Many governments intervened in foreign exchange markets to dampen volatility and to influence currency movements. Identify an example of recent government intervention (2007 and after) in the foreign exchange markets and discuss its rationale. Also comment on the effectiveness of such government actions. Explain your opinions and provide supporting evidence.

Post an approximately 300-word response to the suggested discussion question. There are a number of ways to approach this assignment: consider the reading in relation to its historical or theoretical context; write about an aspect of the week’s reading that you don’t understand, or something that jars you; formulate an insightful question or two about the reading and then attempt to answer your own questions; or respond to another student’s post, building upon it, disagreeing with it, or re-thinking it. In any case, strive for thoughtfulness and nuance.

Suggested Discussion Question: Globalization is generally a controversial topic. Many believe that globalization provides opportunities for economic growth but increases social inequalities. Thus, while it has been argued that globalization promotes growth and development for the benefit of all, many concerns have been raised regarding the impact of globalization on jobs, wages, job security (or insecurity) and working conditions. For example, a German Marshall Fund (2007) survey shows that about half of Americans and Europeans think that “freer trade” results in more job loss than job creation. Globalization has also been blamed for the recent financial crisis and its effects on employment. Please examine the impact of globalization on jobs and wages around the world and discuss whether policies should be developed and implemented to make globalization socially sustainable.

The division of labor and specialization that social surplus enables boosts social output and spurs technological advancement. This promotes an automatic process of economic growth.

A. Describe this assertion. A. To support this claim, offer evidence from Diamond's Guns, Germs, and Steel, the MES text, and whatever else you deem pertinent. C. In that case, how did the social surplus enable those with more of it to first marginalize hunter-gatherers before claiming the entire planet?

What is the meaning og this statement from : Textbook - Global Business Today 10th Edition page 94

All societies are stratified on a hierarchical basis into social categories—that is, into social strata. Individuals are born into a particular stratum. They become a member of the social category to which their parents belong. Individuals born into a stratum toward the top of the social hierarchy tend to have better life chances than those born into a stratum toward the bottom of the hierarchy. They are likely to have better education, health, standard of living, and work opportunities. (pg. 94)

2. Are some stratified societies better than others described by Diamond? Why or why not?

Throughout most of human history, people lived in relatively small, egalitarian bands. With the advent of farming, stratified societies began to emerge and today dominate the human landscape. Conclusion

The turbulent impact of the water in a waterfall causes thesurrounding ground to oscillate in a wide range of low frequencies.If the waterfall falls freely (instead of hitting a rock on the waydown), the oscillations are greatest in amplitude at a particularfrequency fm. This fact suggests that acoustic resonance isinvolved and fm is the fundamental frequency. The following tablegives, for nice US and Canadian waterfalls, measured values for fmand for the length L of the water’s free fall.
Waterfall 1 2 3 4 5 6 7 8 9
fm(Hz) 5.6 3.8 8.0 6.1 8.8 6.0 19 21 40
L (m) 97 71 53 49 35 24 13 11 18

Determine how to plot the data to get the speed of sound in thewater of a water fall. (hint: we know how to extract the slope of alinear fit very well.)


From the plot, find the speed of sound if waterfall resonance iseffectively like that in a tube with (a) two open ends and (b) onlyone open end.











The speed of sound in turbulent water filled with air bubbles canbe about 25% less than the speed of 1400 m/s in still water. Fromthe answers to the previous question, determine how many open endsare effectively involved in waterfall resonance?


I have no idea how to solve this problem. I know I need to get agraph that produces velocity, but I have no clue on where to start.

(a) What is the frequency of the tuning fork?
1 Hz
(b) What is the value of L for the next twoharmonics?
2 m
3 m

I have found the frequency no problem, but as for the L ofthenext two harmonics, im lost

The water level in a vertical glass tube 1.050 m long can beadjusted to any position in the tube. A tuning fork vibrating at680.00 Hz is held just over the open top end of the tube.
What is the greatest depth of water for which there will beresonance in the air in the tube?

The water level in a vertical glass tube 0.870 m long can be adjusted to any position in the tube. A tuning fork vibrating at 617 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the tube. (That air-filled top portion acts as a tube with one end closed and the other end open.) At what position of the water level, as measured from the top, does the first resonance occur? (Take the speed of sound to be 343 m/s.)

The water level in a vertical glass tube 0.870 m long can beadjusted to any position in the tube. A tuning fork vibrating at617 Hz is held just over the open top end of the tube, to set up astanding wave of sound in the air-filled top portion of the tube.(That air-filled top portion acts as a tube with one end closed andthe other end open.) At what position of the water level, asmeasured from the top, does the first resonance occur? (Take thespeed of sound to be 343 m/s.)

The water level in a vertical glass tube 1.00 m long can be adjusted to any position in the tube. A tuning fork vibrating at 686 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the tube. (That air-filled top portion acts as a tube with one end closed and the other end open.)

(a) For how many different positions of the water level will sound from the fork set up resonance in the tube’s air-filled portion?

What are the (b) least and (c) second least water heights in the tube for resonance to occur?

The water level in a vertical glass tube 0.870 m long can be adjusted to any position in the tube. A tuning fork vibrating at 617 Hz is held just over the open top end of the tube, to set up a standing wave of sound in the air-filled top portion of the tube. (That air-filled top portion acts as a tube with one end closed and the other end open.) At what position of the water level, as measured from the top, does the first resonance occur? (Take the speed of sound to be 343 m/s.)

A vertical tube, open at both ends, is lowered into a tank of wateruntil it is partially filled. The top portion of the tube, abovethe water, is filled with a gas that, because it is denser thanair, remains in the tube. A 53.6-cm-long, 1.10 g horizontal wire isstretched just above the top of the tube with 443 N of tension.Bowing the wire at its center causes the wire to vibrate at itsfundamental frequency. The water level in the tube is adjusteduntil the sound from the vibrating wire sets up a standing soundwave in the gas. The water is then lowered another 30.5 cm untilthe next standing sound wave is detected.

Use this information to determine the speed of sound in thegas.

A vertical tube, open at both ends, is lowered into a tank ofwateruntil it is partially filled. The top portion of the tube,abovethe water, is filled with a gas that, because it is denserthanair, remains in the tube. A 50.0-cm-long, 1.00 g horizontalwire isstretched just above the top of the tube with 440 N oftension.Bowing the wire at its centre causes the wire to vibrate atitsfundamental frequency. The water level in the tube isadjusteduntil the sound form the vibrating wire sets up a standingwave inthe gas. The water is then lowered another 30.5 cm until thenextstanding wave is detected. Use this information to determinethespeed in the gas.

A tuning fork with a frequency of f = 512 Hz is placed near the top of the tube shown in Figure P18.44. The water level is lowered so that the length L slowly increases from an initial value of 20.0 cm. Determine the next two values of L that correspond to resonant modes.

Figure P18.44

Which one of the following statements concerning standingsoundwaves is FALSE?
(A) For a tube open at one end only, standing waves of oddharmonicsare the only ones present.
(B) For a tube open at both ends, both odd and evenharmonicstanding waves are present.
(C) The fundamental (1st harmonic) has the same frequency forpipesof the same length where one pipe is open at both ends andtheother is open only at one end.
(D) The wavelength of a standing sound wave in a tubeisproportional to the length of the tube.
(E) The frequency of a standing sound wave in a tube isproportionalto the speed of sound and inversely proportional tothe length ofthe tube.

Sound is generated from standing waves in twotubes which are both open at both ends and are identical, apart fromone tube having length L and the other tube being only seven eighths aslong. If the speed of sound is v, what is the expression for the beatfrequency produced by the two fundamental (1st harmonic) frequencies?

Watch the CBS clip - Henrietta Lacks

http://www.cbsnews.com/news/the‐immortal‐
henrietta‐lacks  

Answer the following questions:

‐Explain the contribution that Henrietta Lacks made
to the world of biomedical research.

‐What is the injustice that occurred?

‐What of the three main ethical principles in the
Belmont report was considered in this case?

What amount must be invested today at an annual interest rate of8% if you want to purchase a $550,000 machine four years in thefuture?

a) What is the number of time periods (N) you should use insolving this problem?

b) What rate of interest (i), per period of time, should be usedin solving this problem?

c) Is the present single amount of money (P) known? (Yes orNo)

d) What is the desired future amount? (Use 1000 Separator)

e) Which time value factor should be used to solve this problem?Choices are(F/P,i%,N),(P/F,i%,N),(F/A,i%,N),(A/F,i%,N),(P/A,i%,N),(A/P,i%,N)

f) What is the total amount that must be invested today? (Use1000 Separator)

To purchase a new equipment, you borrow $52,550. An equipmentdealer offers a five-year loan at an interest rate of 5% compoundedannually. If you make only payment at the end of the load period,repaying the principal and interest.

a) What is the number of time periods (N) you should use insolving this problem?

b) What rate of interest (i), per period of time, should be usedin solving this problem?

c) Is the present single amount of money (P) known? (Yes orNo)

d) Which time value factor should be used to solve this problem?Choices are(F/P,i%,N),(P/F,i%,N),(F/A,i%,N),(A/F,i%,N),(P/A,i%,N),(A/P,i%,N)

e) What is the total amount that must be paid back? (round toone decimal place, use 1000 Separator)

f) How much of the total amount repaid represents interest?(round to one decimal place, use 1000 Separator)

What amount must be invested today at an annual interest rate of 8% if you want to purchase a $550,000 machine five years in the future?

a) What is the number of time periods (N) you should use in solving this problem? Answer

b) What rate of interest (i), per period of time, should be used in solving this problem? Answer%

c) Is the present single amount of money (P) known? (Yes or No) Answer

d) What is the desired future amount? (Use 1000 Separator) $Answer

e) Which time value factor should be used to solve this problem? Answer(F/P,i%,N)(P/F,i%,N)(F/A,i%,N)(A/F,i%,N)(P/A,i%,N)(A/P,i%,N)

f) What is the total amount that must be invested today? (Use 1000 Separator) $Answer