What happens to sound waves from an object as it moves toward you?(1 point) Responses

Lamar & Co Company makes and sells two types of shoes, Plain and Fancy. Data concerning these products are as follows:Plain FancyUnit selling price $20.00 $35.00Variable cost per unit 12.00 24.5040% of the unit sales are Plain, and annual fixed expenses are $47,500.The weighted-average unit contribution margin is:A.$17.00B.$9.50C.$9.00D.$9.25 10. Point out the safety control measures resulting from the following tasks a) Operation of centrifugal pump which is used to pump p sea water to the desalination plant b) Producing 200mpsig of compressed air for the instrument airline and for pneumatic valve Minimize f(x)=2x2 1-2 x1 x 2+2x2-6 x 1 +6Subject to: x1+x2-2=0Using the Lagrange multipliers technique. Compute the optimal point values for x1, x2, l y llIn an optimization problem with equality constraints, what is the meaning of the values of the Lagrange multipliers? What is the pH of a solution containing 0.02 moles A- and 0/01moles HA? pKa of HA = 5.6Step by step 4x+y20find the value of y when x =6 A horizontal curve was designed for a two-lane highway with 10-foot lanes and 4-foot shoulders. The curve has the following conditions: R=140 feet Side friction = 0.348 Large building exists on the inside of the curve. Inside edge of road (shoulder) is 10 feet from the building. Assume perception and reaction time is 2.5 second and a = 11.2 ft/sec^2 Calculate the design speed of the curve. how to write out "its 1:00" in spanish President Obama's presidential campaign emphasized themes of hope and change. This included changing the culture of Washington from an inefficient and dysfunctional organization plagued by partisan politics, gridlock, and divisiveness, to an institution in which greater cooperation and collaboration would propel Congress to function effectively. A recent poll however revealed that roughly 13% of Americans approve of the job that Congress is performing. Concluding that Obama must have merely said those things but didn't actually agree with them while failing to take into consideration factors such as the severity of the economic turmoil that occurred between his being elected and the actual start of his presidency illustrates an example of the overconfidence bias making an external attribution making a fundamental attribution error the actor-observer effect TEST5Measure out 2 ml of potassium dichromate (VI) solution into a test tube then add 1 ml of dilute sulphuric acid. Add 2 ml of ethanol and warm in a water bath for 3-4 minutes. Make observations all through the process (including the smell of the product in the test tube).Initial- uniform orange color. After Water bath-Olive green color. Smells like apples.TEST6Measure 5 ml of ethanol into a test tube; add 10 drops of concentrated (CARE!!) sulfuric acid. Then add 5 ml of propanoic acid. Place in the water bath for 5 minutes. Out of the water bath, pour the contents into 25 ml of water in a small beaker. Make observations for ALL three steps of the expt.Initial- no layers seen after adding ethanol to sulfuric acid and propionic acid, soluble.After water bath- thin layer seen at top of meniscus.After pouring contents into beaker of water- Clear distinct separation of layers seen with the product forming the top layer. Top id cloudy. Bottom is clear. Smells like pineapple (Ester is the product that forms t(a) Name the type of reaction ethanol underwent in Test 5. ______________________________________(b) Explain the reaction which caused the color change in Test 5 _____________________________________________________________________________________________________________________________________________6. (a) What type of reaction happened in Test 6? ____________________________________________(b) Give one role of conc. sulfuric acid in test 6 __________________________________________________________(c) Write the equation for the reaction in Test 6 __________________________________________________________(d) Identify the smell/odor of the product in Test 6 _________________________ Which of the following appears to have most likely moderated Daniel Rogers' preaching style? his followers' loss of faith in him gaining a permanent congregation attacks by conservative preachers In Kidd's essay, which of the following concerned the more established and moderate leaders of the church? CHOOSE TWO. Rogers preached the abolition of slavery Rogers allowed all parishioners to speak Rogers condemned the hoarding of bread Considering Thomas Kidd's essay "Daniel Rogers' Egalitarian Great Awakening" as a whole, which of the following contrasts does he appear to be the most interested in? the difference between white male churchgoers and black or female churchgoers the difference between conservative itinerant preachers and radical ones the difference between abolitionist preachers and ones that did not call of abolition Your 3-year old son has started to kick the family dog for no reason. He has been yelled at for this in the past, but he continues to kick dogs. You are concerned that he is developing antisocial tendencies, and you wish to stop this behavior immediately. You want to teach him to pet the dog and not be mean to it. Describe two different methods to modify his behavior, one based on punishment and one based on reinforcement. Both methods must be practical and ethical. Keep in mind the factors that influence behavior, such as schedules of reinforcement and punishment, contingency, contiguity, belongingness, and all of the other variables we have discussed throughout the term. Also keep in mind that you want the behavior change to be enduring, not just whenever you are present. Calculate the stoichiometric air fuel ratio for the combustionof a sample of dry anthracite of the following composition by mass:Carbon (C) = 72.9 per cent, Hydrogen (H2) = 3.64 per cent, Oxygen(O2 need help pleaseeeeeeeeeeeeeeeeeee Using any of the assigned social media articles, discuss whether you think that online communities can substitute for face-to-face communities. What is gained or lost? Do you agree with their points or not? You may use your own personal experience to help answer this question, but make sure that you address at least one of the articles as well. Another thing to think about is...if thousands years from now, all that was left to represent humanity are social networking sites, what would future species think of humans based on these sites? What would they think we are like based on the signs they see on these sites? a) The population of Suffolk County, NY is projected to be 1,534,811 in theyear 2040. In the year 2000, the average per capita water use in Suffolk County was 112gallons per person per day. What is the estimated water use (in million gallons per day) inSuffolk County in 2040 if water conservation efforts reduce per capita water use by 15%compared to the year 2000?b) In the year 2000, Public Water Systems in the State of New York supplied2560 million gallons of water per day to 17.1 million people for both domestic andindustrial use. what is the average per capita sewage flow in New York assuming a returnof 67% of the supply? What is one reason a population's distribution of traits might e perience little to no change over a long period of time? A. A high amount of competition exists in the environment. B. The environment remains relatively stable. C. New abiotic factors are introduced regularly. D. The population has a large amount of genetic variation A solenoid of length L = 36.5 cm and radius R=2.3 cm , has turns density n = 10000 m (number of turns per meter). The solenoid carries a current I = 13.2 A. Calculate the magnitude of the magnetic field on the solenoid axis, at a distance t = 13.5 cm from one of the edges of the solenoid (inside the solenoid). A positive charge of 1.100 C is located in a uniform field of 9.0010 N/C. A negative charge of -0.500 C is brought near enough to the positive charge that the attractive force between the charges just equals the force on the positive charge due to the field. How close are the two charges? Which statement BEST exemplifies a secondary appraisal? "Taking on a double major is just too much work!" "Taking on a double major may help me get into medical school." "If I tutor, I can quit my job as a server and have more time for a double major." "If I take on a double major, I won't be able to see my friends as much." would not have built the platform if it did not expect to make a good profit. What is BP's expected profit when it has pumped all the estimated barrels of crude oil and gas? For determining natural profits assume the platform will produce for 10.9 years (4000 days).