1. Chemistry

    Refer to the net ionic equation below to answer the following questions: Co(H2O)6^+2 + 4Cl- <==> CoCl^-2 + 6H2O 1. In what direction was the equilibrium shifted by: a. Addition of HCl b. Addition of water c. Addition of AgNO3 d. Increasing the
  2. Calculus

    Assume the dimensions of a rectangle are continuously changing in a way so that the area, A, of the rectangle remains constant. If the base of the rectangle is increasing at a rate of 3 inches per second, at what rate is the height of the rectangle
  3. Physics

    #1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a
  4. Physics

    #1.) A solar photovoltaic panel has an area of 3 m^2. The panel's maximum power output is 595 W @ 1100 W/m^2. a) What is its efficiency? b) If the panel receives 1300 W/m^2 of irradiance, what is its new power output? #2.) A solar voltaic module has a
  5. PHYSICS - ONE MORE QUICK QUESTION

    PLEASE SEE ADDITIONAL QUESTION AT BOTTOM. A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined
  6. Statistics

    This is a standard deviation contest. You have a six sided die with the numbers 1 to 6 written on the faces. a)In order to have the smallest possible standard deviation what number(s) would have to show up if you rolled the die five times? b)In order to
  7. English

    1. Read the following passage from "The Cabuliwallah." I took them and was going to pay him, but he caught my hand and said: "you are very kind, sir! Keep me in your recollection; do not offer me money! You have a little girl; I too have one like her in my
  8. social studies

    At home on the hills of Vermont or in the woods of Maine or the Texan ranch comrade of Californians comrade of free north sweeteners of every hue caste am I of every rank and religion. Why did Whitman compose these lines? A. to point out the vastness of
  9. social studies

    At home on the hills of Vermont or in the woods of Maine or the Texan ranch comrade of Californians comrade of free north sweeteners of every hue caste am I of every rank and religion. Why did Whitman compose these lines? A. to point out the vastness of
  10. Physics

    Would someone check this please? A circular loop of wire of radius 0.10 m and of resistance 2.0 ~ 10−3 ƒ¶ is in a region where there is a uniform magnetic field B. The field is at 30‹ to the normal to the plane of the wire loop as shown in
  11. Constructed Responce Help

    Hi, I was told I could re-do my CR and post it for checking. There are many ways to compare and contrast the two versions of the stories “The Chicago fire”. The first version differs from the second version in many ways. Some ways is that in the first
  12. Chemistry

    A large sport utility vehicle has a mass of 2500kg. Calculate the mass of CO2 emitted into the atmosphere upon accelerating the SUVfrom 0.0mph to 66.0 mph. Assume that the required energy comes from the combustion of octane with 30% efficiency. (Hint: Use
  13. Algerbra1

    1.You have recently found a location for your bakery and have begun implementing the first phases of your business plan. Your budget consists of an $80,000 loan from your family and a $38,250 small business loan. These loans must be repaid in full within
  14. Physics

    A fossil-fuel power plant that generates 1000MW of electrical power discharges 1600MJ per second as waste heat into the river. A)At what rate(in MW) is thermal energy obtained fromt the burning of coal? B)What is the thermal efficiency(power output/heat
  15. Electricity and Magnetism

    (1 point) The sum of two point charges is +8μC. When they are 3.7cm apart, each experiences a force of 63 N . Find the charges given that the force is: a) repulsive. (List your two answers in increasing order of magnitude) μC b) attractive. (List
  16. art/101

    Review Ch. 3 of A World of Art. Considering examples on pp. 52–54 in Ch. 3 of your text, what performance art might you imagine executing in a public space? What would be your piece’s purpose and content?
  17. stats math

    Suppose that two cards are randomly selected from a standard 52-card deck. What is the probability that the first card is a spade and the second card is a space if the sampling is done without replacement?
  18. math

    The garage you work for as an auto mechanic measures 230 ft. by 150 ft and handles 69 cars. Using the existing garage as a model, how much space would you plan to have in your garage?
  19. Math

    one person takes up about 2.5 square feet of space. use this value to estimate how many people can fit in an area that is 120 feet wide and 300 feet long.
  20. physics

    A particle (mass = 5.0 g, charge = 40 mC) moves in a region of space where the electric field is uniform and is given by Ex = -5.5 N/C, Ey = Ez = 0. If the position and velocity of the particle at t = 0 are given by x = y = z = 0 and vx = 50 m/s, vy = vz =
  21. meaning

    Jacy taught dancing and demonstarted ballet postions. What does position refer to in that sentence? A] dances for ballet B] the space occupied by something C] particular stances in ballet I think it's D?
  22. fin 3030

    2. A new common stock issue paid a $1.50 dividend last year. The par value of the stock is $25, and earnings per share have grown at a rate of 3% per year. This growth rate is expected to continue into the foreseeable future. The company maintains a
  23. College Statistics

    How much should you invest each month in order to have $800,000 if your rate of return is 5.3% compounded monthly and you want to achieve your goal in 40 years? How much interest will you earn? How much should you invest each month in order to have
  24. earth science

    How would you set up a simple experiment to test whether salt crystal growth is affected by temperature It might help if you were clear on how an experiment is set up. An independent variable is the potential stimulus or cause, usually directly manipulated
  25. English II

    In the space provided, write a paragraph of cause and effect. You may use one of the topics below or one of your own choosing. Mention at least three causes and their three effects. -friendship as a two-way street -television and preschoolers -vitamin
  26. english

    In the space provided, write a paragraph of cause and effect. You may use one of the topics below or one of your own choosing. Mention at least three causes and their three effects. friendship as a two-way street television and preschoolers vitamin
  27. history

    During the rapid urbanization of the late-19th century, _______________________ maximized the use of urban space by housing large numbers of people in cramped, and often unsafe, conditions.   tenements      projects row houses skyscrapers
  28. Accounting

    I need to know how to journalize this in a General Journal, but I don't know if it is required to even write down. Signed a lease agreement to rent office space for $975 per month, beginning Feb 1st. Nothing was paid today. (This happened on Jan 15)
  29. phys3

    A biologist is studying growth in space. He wants to simulate Earth's gravitational field, so he positions the plants on a rotating platform in the spaceship. The distance of each plant from the central axis of rotation is r = 0.11 m. What angular speed is
  30. English

    Which of the following from the speech has a parallel structure? A. "our fathers brought forth upon this continent a new nation" B. "and dedicated to the proposition that all men are created equal" C. "that nation, or any nation so conceived and so
  31. writing

    Hi my writing isn't very good Is there a site with exercises so i can improve my writing skills. Like short stuff. I only have 3 weeks till the next term and i don't know how to structure an essay is there a site with some info ? thanks again, Jim
  32. Environmental Engineering

    The EPA requires hazardous waste incinerators to meet a standard of 99.99% destruction and removal of hazardous constituents injected into the incinerator. Determine the allowable quantity of contaminant in the exit stream if the incinerator is burning
  33. organic chemistry

    Provide a structure for the following compound: C9H10O3; IR: 2400–3200, 1700, 1630 cm–1; 1H NMR: δ 1.53 (3H, t, J = 8 Hz); δ 4.32 (2H, q, J = 8 Hz); δ 7.08, δ 8.13 (4H, pair of leaning doublets, J = 10 Hz); δ 10 (1H, broad,
  34. organic chemistry

    Provide a structure for the following compound: C9H10O3; IR: 2400–3200, 1700, 1630 cm–1; 1H NMR: δ 1.53 (3H, t, J = 8 Hz); δ 4.32 (2H, q, J = 8 Hz); δ 7.08, δ 8.13 (4H, pair of leaning doublets, J = 10 Hz); δ 10 (1H, broad,
  35. physics

    It has been suggested that rotating cylinders about 12 mi long and 5.4 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall
  36. anatomy

    If the pleural space lost its negative pressure which of the following would be true? A.Inspiation would be more difficult B.Expiration would be more difficult C.Sufactant wouldnt be needed D. Exchange of oxygen and carbon dioxide would improve I think it
  37. Physics

    Calculate the energy needed to accelerate a spaceship of mass 10,000 kg to a speed of 0.3c for intergalactic space exploration. Compare with the projected energy usage of the Earth in a decade 10^22J?
  38. math 10

    James can store 8 GB of music on his phone. If a 3-min digital song requires 3.5 MB of storage space, what are the domain and range for the relationship between memory used and number of songs that are each 3 min in length?
  39. physics

    It has been suggested that rotating cylinders about 9 mi long and 6.0 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration
  40. physics

    It has been suggested that rotating cylinders about 12 mi long and 4.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall
  41. physics

    Consider a situation where immediately after birth, twins are separated. One continues to live on earth, while the other is whisked away in a space ship at 90% of the speed of light. After 65 years they are reunited. Will they look the same? I know that
  42. physics

    It has been suggested that rotating cylinders about 9 mi long and 5.1 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall acceleration
  43. Physics

    What is the apparent weight of a 75 KG astronaut 4200 km from the center of the earth's moon in a space vehicle.a) moving at constant velocity, and b) accelerating toward the moon at 209 m/s? state the direction in eachcase
  44. Science

    QUESTION: "Make a hypothesis about how space craft that travel through the solar system obtain the energy they need to operate." We are studying energy forms in class (Kenetic, Potential, Nuclear, etc.)... i need help NOW!
  45. physics

    It has been suggested that rotating cylinders about 12 mi long and 4.6 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the free-fall
  46. physics

    To create artificial gravity, the space station is rotating at a rate of 0.80 rpm. The radii of the cylindrically shaped chambers have the ratio rA/rB = 3.80. Each chamber A simulates an acceleration due to gravity of 10.0 m/s2.
  47. Fundemental DeskTop

    If you press the ______ key you will jump to the previous screen A. Page down B. Page up C. Home D. End I got B . You should ____ insert a blank space before the percent symbol A. Always B. Not C. Occasionally D. NONE OF THE ABOVE I got B .
  48. math

    here is my problems url its typed with spaces please rewrite it with out space to see the image. and it wont need password or anything go to (zshare . net )/image/126113093ead8f03 the question is to: *find the area of the shaded region.
  49. writeteacher

    i was advise not to take eng 093 just yet which is basic english and and the courses i take requires me to write papers. Please help me with learning the basics of english, like putting the commas, semi in its apprioate space. also grammar!
  50. physics college

    A rocket booster fires in space with a force of 500N and moves the 10kg satellite from rest to motion in 2.1 seconds. Find the acceleration? What is the final speed of the satellite?
  51. writing

    i was advise not to take eng 093 just yet which is basic english and and the courses i take requires me to write papers. Please help me with learning the basics of english, like putting the commas, semi in its apprioate space. also grammar!
  52. Science

    A coach wants to find out the speed of the runners on a track team. Tell what simple equiptment the coach needs in order to do this and explain how it should be done. You need to know the time and distance in order to calculate speed. Think of some typical
  53. Calculus

    F(x) = x^5 ln x A) Find the interval on which f is increasing Find the interval on which f is decreasing B) Find the local minimum value of f C) find the inflection point (x,y) Find the interval in which f is concave up Find the interval in which f is
  54. math

    A spherical snowball is melting so that its diameter is decreasing at rate of 0.2 cm/min. At what is the rate is the volume of the snowball changing when the diameter is 18 cm? The volume is changing at a rate of
  55. business math

    Question: You receive the results of a paired-comparison preference these of four soft drinks from a sample of 200 persons. The results are as follows: Koak Zip Pabze Mr.Pep Koak ---- 50 115 35 Zip 150 --- 160 70 Pabze 85 40 --- 45 Mr.Pep 165 130 155 ---
  56. English-Grammar check

    Can someone tell me if these 2 sentences are the correct use of a semi colon: Another example of prejudice displaying in Maycomb county is against Arthur Radly, the local everyone is afraid of; he is considered the town freak. One more example of prejudice
  57. حاسب

    Write a program that reads from the student user: his name as string (%s), his id as integer and his total marks in C programming course as float. Then store these information in student structure. After that, Calculate his letter grade in this course
  58. soc 101

    Imagine a society in which there are no social classes- no differences in people’s wealth, income, and life chances. What would such a society be like? Would it be stable or would its social structure change over time? How could you apply Max Weber’s
  59. Biology

    Describe four ways that plants protect themselves from environmental conditions using one example from each of the following categories: a. hormone b. tropism c. plants structure d. plant process In your answer be sure to include the specific threat and
  60. chemistry

    water: describe how its molecular structure is responsible for its ability to serve as a solvent for salts and other ionic or polar materials. Explain how you can be sure it isn't a straight molecule? Is it because hydrogens can come off a attach to other
  61. Bio.

    System of branching divisons that biologists use to place an organism into the appropriate taxon. What would the word be that fits that definition? Here are some possible words: binomial nomenclature classification system homologous structure kingdom
  62. physics

    A)When the energy input to gas fired power station is 1000MJ,the electrical energy output is 300MJ.What is the efficiency of the power station in changing the energy in gas into electrical energy b)what form does the 700MJ of lost energy take c)what is the
  63. Biology

    I'm having trouble answering this: The average size of a large fish that humans use for food has been decreasing over time, Exp-lain how, exactly, this happens - be sure to discuss genes, proteins, traits, and selection pressure. This is all I can answer
  64. PHYSICS! Really Confused! Test Tmrw

    A person is standing on a 10-m bridge above a road. He wants to jump from the bridge and land in the bed of a truck that is approaching him at 30 m/s. In order to clear the bridge railing, he has to jump upward initially with a speed of 5 m/s. HOW FAR AWAY
  65. chemistry

    i do not understand how to do these and i have a question on my test tomorrow on this stuff can someone explain to me how to do this? for each of the following molecules draw the lewis structure, determine the shape, determine the polarity, and determine
  66. Chemistry

    A solid metal is often known as having 'an array of positive ions in a sea of electrons'. Write down the electronic structure of magnesium atom and use it to explain what this phrase means. Actually I don't know how to explain it. So I need you to explain
  67. Physical Science

    An experiment was done. Pulling blocks of mass that were certain amounts of newtons. There were 2 tests done. However, they varied by a couple decimals after the second test. The results from the two tests differ slightly. Which would most likely cause the
  68. Physical Science

    An experiment was done. Pulling blocks of mass that were certain amounts of newtons. There were 2 tests done. However, they varied by a couple decimals after the second test. The results from the two tests differ slightly. Which would most likely cause the
  69. chemistry

    Read the two statements below about the compounds H2Y, Li2Y, HZ and KZ and then answer the questions that follow: A non-metal element which lies in the third row of the Periodic Table forms a gaseous compound H2Y with hydrogen and the compound Li2Y with
  70. Math

    In order to estimate the mean amount of time computer users spend on the internet each month, how many computer users must be surveyed in order to be 95​% confident that your sample mean is within 11 minutes of the population​ mean? Assume
  71. Science

    Which experimental approach would be most effective and easiest to clearly determine the evolutionary relationship between these two organisms? A. sequence the same gene in both species to compare their similarity. B. dissect specimens of both species to
  72. Chemistry please help

    A general reaction written as 1A + 2B --> C + 2D is studied and yields the following data: Expt (A). (B) initial (C)/t 1. 0.150. 0.150. 8.00 x10^-3 2. 0.150. 0.300. 1.60 x10^-2 3. 0.300. 0.150. 8.00 x10^-3 What is the order of the reaction with respect
  73. Science (URGENT)

    Can someones please check my work? 1. Why does a liquid take the shape of whatever container it is in but does not expand to fill the container completely? A: It takes the shape of its contaienr because its particles can slip past each other. but it has
  74. Chem

    How do you figure out the Noble Gas Configuration? Also, why do you not put in the "p" level and when do you( if you even do) put it in? You need to be more specific about your question. Elements that lose electrons (Na, Ca, Al, etc) gain the noble gas
  75. Econ

    In the case of a negative externality: Select one: a. the private market does not produce enough of the good. b. market price reflects the social costs of production. c. efficiency requires that the government impose a subsidy. d. market price reflects
  76. Physics

    Would someone check this please? A circular loop of wire of radius 0.10 m and of resistance 2.0 x 10^−3 ohms is in a region where there is a uniform magnetic field B. The field is at 30deg to the normal to the plane of the wire loop as shown in
  77. Physics

    Would someone check this please? A circular loop of wire of radius 0.10 m and of resistance 2.0 x 10^−3 ohms is in a region where there is a uniform magnetic field B. The field is at 30deg to the normal to the plane of the wire loop as shown in
  78. Fluid Mechanic

    3) Air at standard conditions enters the compressor shown in Fig. Q3 at a rate of 0.3m3/s. It leaves the tank through a 3 cm diameter pipe with a density of 1.8 kg/m3 and the uniform speed of 210 m/s. (a) Determine the rate (kg/s) at which the mass of air
  79. physics

    A variable capacitor is connected to an ac source. what effect does decreasing the capacitance have on the reactance and current in this circuit? Reactance Current A) increases decreases b) decreases no change c) decreases increases d) increases increases
  80. calculus

    1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate is the diagonal D of
  81. calculus

    1. A rectangle has a constant area of 200 square meters and its length L is increasing at the rate of 4 meters per second. a. Find the width W at the instant the width is decreasing at the rate of .4 meters per second. b. At what rate is the diagonal D of
  82. english

    What grammatical structure is the italicized portion of the sentence? Although her personality had not changed at all, Megan looked quite different is it: adverb clause infinitive phrase past participial phrase elliptical clause adjective clause
  83. polymerization of alchohol

    CH2=CH-CH-OH | CH3 when the above compound undergo polymerizaing What is the polymer and the structure of the polymer obtained drawing should show three monomer unit. also include what type of polymerization involved in forming this polymer
  84. College Algebra

    Here is the whole question... I have figured most of it out but I need help with part (b)(f) and (g)... Maybe you also check the work I have already done Given the following function, find: (a) vertex, (b) axis of symmetry, (c) intercepts, (d) domain, (e)
  85. Chemistry

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S
  86. Chemistry Help!!!!

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S
  87. Chemistry

    Calculate S (measure of total entropy) for the following reaction at 25C and 1atm, and tell whether the entropy is increasing or decreasing. C3H8(g)+5O2(g)-> 3CO2(g)+4H2O(g) S of C3H8=64.5 cal/(mol*K) S of O2= 49 cal/(mol*K) S of CO2= 51.1 cal/(mol*K) S
  88. Calculus

    Consider the function f(x)=xlnx. For the following questions, write inf for ∞, -inf for −∞, and None if no such answer exists. a.) The domain of this function is . b.) The x-intercept is . c.) f′(x) = . d.) f(x) is increasing on the
  89. ENGLISH

    Please make the correction so that my paper is error free. Dear Ms. Powell Thank you for your order. The enclosed invoice indicted that the shipment was sent under separate covers. This shipment includes all volumes except the final volume that is being
  90. Calculus1

    The radius of a sector of a circle is increasing at a rate of 3 cm/sec while the area is decreasing at a rate of 1 cm2/sec. At what rate is the angle of the sector changing when the area is 20 cm2 and the radius os 5cm?
  91. physics

    Hi I need help to figure out if these situations are possible or impossible thank you. constant velocity, non-zero net force constant speed, non-zero net force velocity to the left, net force to the right decreasing velocity, increasing magnitude of net
  92. French

    1. Nous sommes allés faire du ski 2. Nous avons quitté Strasbourg assez tard 3. Nous avons dû passer la nuit à Lyon 4. Nous sommes arrivés à la montagne seulement samedi 5. Il y avait beaucoup de voitures sur la route. 6. Il neigeait 7. La route
  93. word-math problem

    Assume that the amounts of oil produced by the first, second, third, ..., wells in a new oil field form a decreasing geometric sequence. If the first well produces 80,000 barrels and the second produces only 70,000 barrels, predict the total amount of oil
  94. hca 240

    I’m sending little Jimmy over for a stat spinal tap. He has had a fever for a couple of days, which increased to 102 degrees today. Since yesterday he’s been complaining of a headache and stiff neck. His mother said last week he had gone swimming in
  95. PHILOSOPHY

    1. Some years ago, after not having seen my best friend from Duckwood High School for several years, we met for lunch and were surprised to find that our clothes and hairstyles were the same! The only possible explanation for this is that we both went to
  96. calculus

    When air expands adiabatically (without gaining or losing heat), its pressure and volume are related by the equation PV^1,4=C where C is a constant. Suppose that a a certain instant the volume is 520 cubic centimeters and the pressure is 99kPa and is
  97. Math

    What is the volume of the structure bounded by the regions x^2+2y^2+z≤16, 0≤x≤2, 0≤y≤2 and z≥0?
  98. science

    Multiple Choice 1. Which of Earth's spheres contains mountains, valleys, and other landscapes? (1 point) atmosphere biosphere geosphere hydrosphere 2. Which of the following are examples of destructive forces? (1 point) ice wind both ice and wind neither
  99. human resources

    1. An example of internally aligning HR practices is: a. implementing an employee dress code that increases customer satisfaction. b. creating a recruitment plan that targets the predominate groups in the organizations labor market. c. implementing a
  100. English

    Hello. Thank you for answering my previous question. I would be very grateful for some more help. 1)In one of the sources I came across the phrase "the nobility was coopted from the military". Does "co-opted" here mean "drawn, incorporated from"? (the