# Questions Asked onApril 10, 2012

1. ## Chemistry PLZ HELP!!!!!

give equations showing the commercial methods for preparations of the halogen (F2, Cl2, Br2, I2)

2. ## Area Geometry

Find the area of a decagon with a radius of 4mm. Find the area of an octagon with a radius of 10 cm.

3. ## Geometry

You are planning to use a ceramic tile design in your new bathroom. The tiles are blue-and-white equilateral triangles. You decide to arrange the blue tiles in a hexagonal shape as shown. If the side of each tile measures 7 centimeters, what will be the

4. ## chemistry

A volatile liquid was allowed to evaporate in a 43.298g flask that has a total volume of 253 mL. The temp of the water bath wad 100 °C at the atmospheric pressure of 776 torr. The mass of the flask and condensed vaporous was 44.173g. Calculate the molar

5. ## Math (Algebra)

I am having a bit of trouble with the question stated below. I am home-schooled and learning math on your own has proven to be quite the difficult task. If someone could please explain how to do this as thoroughly as possible, I would greatly appreciate

6. ## chemistry

In the chemistry exp molar mass of a volatile liquid what will be the outcome if the hole in the aluminu foil was larger would it make the molar mass high or low. Or what will happen if yhr water vapors condensed under the aluminum foil before the final

A championship golfer uses a nine iron to chip a shot right into the cup. If the golf ball is launched at a velocity of 20 m/s at an angle of 45° above the horizontal, how far away was the golfer from the hole when he hit the ball? What maximum height did

8. ## math

5 4 5a 2a 10b b 40 2 6 ? 2 5c What is the missing algebraic expression? Express your answer in terms of c.

9. ## physics!

The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)

10. ## physics

A converging lens (f = 12.6 cm) is held 8.55 cm in front of a newspaper, the print size of which has a height of 2.10 mm. (a) Find the image distance (in cm), (b) The height (in mm) of the magnified print.

11. ## Chemistry

Ca(OCl)2 + 2NaCl + 2H2SO4 2Cl2 + CaSO4 + NaSO4 + 2H2O [We have to prepare 12 ml of 0.050 M Cl2 (Chlorine water) ] [We are given "solid Ca(OCl)2" , "0.20 M NaCl" and "0.50 M H2SO4" and "D-I water"] What is the required quantity of Ca(OCl)2, NaCl and H2SO4

12. ## Chemistry

1. Calculate the acetylsalicylic acid concentration (in mg/mL) of aspirin solution #2 in the Procedure section. Assume that 300 mg of acetylsalicylic acid has been weighed out. 2.3. (3 pts) Calculate the acetylsalicylic acid concentrations (in mg/mL) of

13. ## math

How would I find out a persons weight? having the the height 65 inches and BMI is 30. Using formula B=703w/h^2

14. ## Biochemistry

In the electron transport chain, electrons from FADH2 are eventually used to reduce O2 into H2O. Experimentally, the proton motive force created by this process will generate 2 ATP molecules from ADP and Pi, using ATP synthase. From the information

15. ## Geometry

A square has a side length of 95. What is the length of the diagonal of the square? Express your answer in simplest radical form.

16. ## Geometry

A square has diagonal length 13 m. What is the side length of the square to the nearest centimeter?

17. ## Geometry

A professional baseball diamond is a square. The distance from base to base is 90 ft. To the nearest foot, how far does a catcher standing at home plate throw the ball across the diagonal of the square to second base?

18. ## Calculus

Please verify the answers~ Thank you! 1. Which of the following is the x-intercept of the plane 2x-4z+1=0? a) P(2,0,-4) b) P(0,0,0) c) P(-1/2,0,0) d) P(0,0,1/4) Answer is C. 2. Which of the following is not a direction vector for the plane 3x-2y-z+4=0? a)

19. ## Geometry

Children climb 8 ft to the top of a slide. The end of the slide is 1 ft above the ground and the slide rises at a 45 degree angle. If the slide makes a straight line from the top to the bottom, how far does a child travel down the slide? Round to the

20. ## Geometry

You set up a makeshift greenhouse by leaning a square pane of glass against a building. The glass is 4.5 ft long and it makes a 30 degree angle with the ground. How much horizontal distance between the building and the glass is there to grow plants? Round

21. ## Calculus

A line has Cartesian equation 3x-2y+3=0 .Determine a direction vector for a line that is parallel to this line. Could someone explain to me why the answer is direction vector: d=(2,3)

22. ## Geometry

A square tablecloth has a line of embroidered flowers along the diagonal. The tablecloth is 48 inches on each side. How long is the embroidery line? Round to the nearest inch.

23. ## Geometry

An equilateral triangle has a height of 26 inches. What is the length of each side of the triangle to the nearest centimeter?

24. ## Chemistry

A 0.450-gram sample of impure CaCO3(s) is dissolved in 50.0 mL of 0.150 M HCl(aq). The equation for the reaction is: CaCO3(s)+2HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g) The excess HCl(aq) is titrated by 9.75 mL of 0.125 M NaOH(aq). Calculate the mass

25. ## Chemistry

When an excess of CaO is added to 200.0 mL of 0.500 M HCl(aq), a temperature increase of 4.01C is observed. Assume the solution's final volume is 200.0 mL, the density is 1.00 g/mL, and the heat capacity is 4.184 J/gC. (Note: Pay attention to significant

Moniques credit card charges interest of 20.85% per annum on unpaid balances on her march 12 statement. she had a balance of $739.65 due by the due date, she made the minimum payment (5% or 10.00, Whichever is greater.) On march 16. She made a purchase of asked by Monique 27. ## English Thank you very much. Here are some more sentences on the same subject. Thank you. 1) The Hundred Years' War received a severe check from the 'Black Death', the bubonic plague which spread all over England in 1348. It was caused by fleas living on black asked by Matthew 28. ## physics A ball is thrown upward with an initial velocity of 6.0m/s by someone on top of the building 34m tall who is leaning over the edge so that the ball will not strike the building on the return trip. (a) How far above the ground will the ball be at the end of asked by jackie 29. ## English I left out the following sentences.Thank you very much.I need to rephrase number 5 and make it more concise. 1) By the 14th century a new middle class, both rural an urban, existed. The merchants increased their power by loaning money to the king for asked by Matthew 30. ## ecology Could someone please tell me what is meant when people say that wind energy can be expensive or more expensive than fossil fuels? asked by Anonymous 31. ## science can you save money on your electric bill from a regular electric company by choosing to use a percentage of wind power through them? Or does it make your bill higher? asked by Anonymous 32. ## Statistics From a random sample of 500 registered voters in Los Angeles, 400 indicated that they would vote in favour of a proposed policy in an upcoming election. a) Test at the 10% significance level a politician’s statement that “those who are in favour of asked by Yugi 33. ## English I left out two last sentences on history. Thank you very much, Writeacher. 1) The 14th century was also marked by the rise of a religious movement of reforms called Lollardy, whose leader was John Wycliffe. 2) The movement, which began at Oxford University asked by Matthew 34. ## algebra Simplify by removing the factor of 1 5y -20 / 5y asked by Coach 35. ## economics A firm that sells e-books – books in digital form downloadable from the Internet – sells all e-books relating to do-it-yourself topics (home plumbing, gardening, and so on) at the same price. At present, the company can earn a maximum annual profit of asked by Anonymous 36. ## math x÷4-30=x÷32/5 asked by ling 37. ## Math Three black and three white beads are arranged on a string forming a circular bracelet. How many different color combinations are possible? asked by lynn 38. ## English Writeacher, how would you check this sentence? Prospero was his first king but now he pens Caliban up like a farm animal, so that he can't go anywhere he wants on the island. ("is anywhere he wants" possible??) I hope you are still there. asked by Matthew 39. ## Finance ABC Drilling has debt with a market value of$200,000 and a yield of 9%. The firm's equity has a market value of $300,000, its earnings are growing at a 5% rate, and its tax rate is 40%. A similar firm with no debt has a cost of equity of 12%. Under the MM asked by Nika 40. ## Chemistry One enzyme- catalyzed reaction in a biochemical cycle has an equilibrium constant (K1) that is 10 times the equilibrium constant (K2) of a second reaction. If the standard Gibbs energy of the former reaction is - 300 kJ mol-1, what is the standard reaction asked by harry 41. ## Perimeter Mr.lopez is putting u a fence around his vegetable garden. The garden is shaped liked a rectangle. The longer sides are 14feet, and the shoter sides are 9 an half feet long. How much fencing should mr. Lopez buy? asked by Mr.lopez 42. ## Finance ABC Drilling has debt with a market value of$200,000 and a yield of 9%. The firm's equity has a market value of $300,000, its earnings are growing at a 5% rate, and its tax rate is 40%. A similar firm with no debt has a cost of equity of 12%. Under the MM asked by Nika 43. ## Perimeter Mr.lopez is putting u a fence around his vegetable garden. The garden is shaped liked a rectangle. The longer sides are 14feet, and the shoter sides are 9 an half feet long. How much fencing should mr. Lopez buy? asked by Mr.lopez 44. ## math the cost of travelling by bus is Rs10 for the first km and RS 3 for every additional km. how much must be paid for a journey of 20 km? asked by anna 45. ## healthcare reimbursement What is the difference between hospital claims processing and professional (provider and/or CMS 1500) claims processing? asked by Meagan 46. ## English Writeacher, I'm finding it difficult to check these sentences, which need to be revised grammatically. 1) The Tempest is the last one of Shakespeare’s plays. It’s very different from his previous ones. In fact it is not a tragedy, like Macbeth or asked by Matthew 47. ## math Please can you Use an example to explain whether multiplying the same number to each value in the data set will affect its variance, give the relationship asked by Fakaapo. Suetusi 48. ## algebra subtact (4y^5+3y)-(-2y^5-8y+9) asked by miss c 49. ## Chemistry Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal asked by Kathi 50. ## Chemistry Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal asked by Kathi 51. ## physics An alarm clock uses 5.0 watts of electric power. If the clock is plugged into 120 volts outlet, what electric current is in the clock's circuit? asked by FRANNY 52. ## economics Suppose that a business has developed a very high-quality product and operates more efficiently in producing that product than any other potential competitor. As a consequence, at present it is the only seller of this product, for which there are few close asked by Anonymous 53. ## wave on your mother is in the kitchen while you are inyour bed room with the door closed. she yells at you telling you its time for dinner. What type of wave is being produced? asked by FRANNY 54. ## Chemistry Using the information on the table of van der Waals Constants of Some Common gases, calculate the pressure exerted by 4.37 moles of chlorine gas confined in a volume of 2.45 L at 38 degrees Celsius. Compare the pressure with that calculated using the ideal asked by Kathi 55. ## Algebra2 how do you solve this? A dice is rolled twice. What is the probability of getting a multiple of 3 on the first roll or a total of 7? asked by A 56. ## Calculus Two automobiles are travelling on intersecting roads. The first automobile is travelling northeast at 35 km/h. The second automobile begins 7 km north of the first, and it is travelling east at 25 km/h. Assuming that these cars will continue at this rate, asked by Antia 57. ## Leadership Rising Cost of Health Care asked by Faith 58. ## Chemistry You have 250mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40? I think this is a buffer system so I would use pH=pka + log base/acid so would I set this up as 4.40 = 4.74 + log base/ asked by Hannah 59. ## physics The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) asked by linds 60. ## Chemistry(Please check) What is molar solubility of Al(OH)3 at 25 degrees C given the solubility product Ksp = 5.0e-33? I set this up as Al^3+ + 3OH^- Ksp=[Al^3+][OH^-]^3 5.0e-33 = (x)(3x)^3 Before I go any further did I do this correctly? asked by Hannah 61. ## Calculus I Find the derivative ** (sq root) y = (square root) x + (2nd sq root) x + (3rd sq root) x ** All the x's is under three sq roots y' = 1/2(sq rt) x + 1/(sq rt) x + 3/2(sq rt) x Is this right? asked by Priscilla 62. ## Chemistry Dr.Bob, Arrange these acids in terms of increasing acidity: CH3COOH, NH3+CH2COOH, CH3CONHCH2COOH According to my Chem textbook,NH3+CH2COOH has a low pKa value since both the COOH & NH3+ are protonated,so it is most acidic. CH3COOH is a weak acid, but I'm asked by Meenaakshi 63. ## arithmetic Determine the 10th and 21st terms of the arithmetic sequence- 4+7x, 5+9x, 6+11x asked by Nkululeko Hadebe 64. ## calculus verify that y=C1e^2x + C2e^-3 is a solution of the differential equation y''+y'-6y=0 asked by mari 65. ## calculus the management of a company has decided that the level of its investment should not exceed C dollars. Furthermore, managament has decided that the rate of net investment (the rate of change of the total capital invested) should be proportional to the asked by mari 66. ## Statistic Out of 150 ST130 students in 2010, 52% passed. A sample of 30 randomly selected ST130 students resulted in 65% passed. i. Describe the population and sample. ii. Identify the parameter and give its value. asked by Fakaapo. Suetusi 67. ## calculus verify that y=c/x^2 is a general solution of the differential equation y'+(2/x) y=0-6y=0 then find a particular solution of the differential equation that satisfies the side condition y(1)=2 asked by mari 68. ## calculus determine whether the statement is true or false. If it is true, explain why it is true. If it is false, give an example to show why it is false a) the function f(x)=3/2 +cx^-2 is a solution of the differential equation xy'+2y=3 b) the differential asked by jhony 69. ## calculus solve the firs-order differential equation by separating variables y'=xy^3/√(1+x^2) asked by jhony 70. ## calculus assume that is the rate of change of the unit price of a commodity is proportional to the diference between the demand and the supply, so that dp/dt=k (D-S) where k is a constant of proportionalily. suppose that D=40-2p, S=5+3p, and P(0)=4. find a formula asked by Anonymous 71. ## calculus find a function f given that (1) the slope of the tangent line to graph of f at any point P(x,y) is given by dy/dx=3xy and (2) the graph of f passes through the point (0,2) asked by mabel 72. ## Physics please help! The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) asked by linds 73. ## calculus find the solution of the initial value problem y'=xye^x; y(1)=1 asked by Anonymous 74. ## math Web Results For: marty ate one -fourth of a pizza and rob ate one-fifth of a pizza . how could rob have eaten more pizza than marty? asked by ug7yg8y 75. ## Chemistry If you add 0.35grams NaF to 150mL of a 0.30M HF, what is the pH of the resulting solution? To start off would I use the value of 1.4e-11 for F^-^ and 7.2e-4 for HF? Chemistry(Please help) - DrBob222, Tuesday, April 10, 2012 at 12:04am This is a buffer asked by Hannah 76. ## physics The source of all wave motion is ____________________. A) something vibrating.B) a harmonic object, or system of objects.C) any energy source.D) a region of high and low pressures.E) transverse motion. asked by Jim 77. ## Math Mandy's kitchen measures eight feet by seven feet. If she is making a scale drawing of one inch = two feet, how many inches will she use for eight feet? How many inches will Mandy use for seven feet? asked by please help me!! 78. ## Algebra What is the solution set to 8x + 11 = 8x + 8 asked by Katie 79. ## organic chemistry what happens to so3 when placedat high temp? asked by himani 80. ## Math Verify the identity & Justify the step.s cot (theta-pi/2)=-tan theta asked by Leah 81. ## physics Using energy considerations, calculate the average force a 60.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 6.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him. asked by Amelia 82. ## english In the sentence: "Are you already almost finished?" "Are" is functioning as a linking verb. True or False asked by Danielle 83. ## physics The number of electrons that move about the nucleus of an electrically neutral atom is the same as the number of ____________________. A) protons in the nucleus.B) quarks in the nucleus.C) protons + neutrons in the nucleus.D) neutrons in the nucleus.E) asked by Jim 84. ## Math Factor 3x^2-16X+K and find the value of K. asked by Hanu 85. ## physics Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 7.00 cm during a blow in which the 8.00 kg arm and glove are brought to rest from an initial asked by Amelia 86. ## physics Using energy considerations, calculate the average force a 60.0 kg sprinter exerts backward on the track to accelerate from 2.00 to 6.00 m/s in a distance of 25.0 m, if he encounters a headwind that exerts an average force of 30.0 N against him. asked by Amelia 87. ## physics How long will it take a 1630 W motor to lift a 285 kg piano to a sixth-story window 16.0 m above? asked by Amelia 88. ## physics During a workout, the football players at State U. ran up the stadium stairs in 61 s. The stairs are 145 m long and inclined at an angle of 30°. If a typical player has a mass of 105 kg, estimate the average power output on the way up. Ignore friction and asked by Amelia 89. ## physics To say an object has a negative charge is to say it has an excess of what kind of charges? A) Either protons or electrons.B) Electrons.C) Protons.D) None of these asked by Jim 90. ## Math How many terms does a trinomial have? asked by Aurora 91. ## Life Orientation In which ways does air pollution impact on communities within South Africa asked by Precious 92. ## calculus test corrections. 1 question Describe the linear programming situation for this system of inequalities. x < 1 y > 0 3x + y < 5 the answer is unbounded. please tell me why asked by brandi 93. ## Pre-calculus Find the minimum value of f(x, y) = y – x + 1 for the polygonal convex set determined by this system of inequalities. x > 0 y > 0 2x + y< 4 the answer is -1. please tell me why asked by brandi 94. ## Computer Question for school is there a way to, on an online video, copy the screen? I am watching a direct instruction for schoolwork and don't know if i can, can I? asked by &#9829;rebel•stupidity=kathy&#9829; 95. ## math a yellow marble will be drawn from a bag containing 2 black and 6 yellow marbles. what best rep[resents the probability of the event? 0%/25%/50%/75%/100% asked by blanche 96. ## computers in day care an encyclopedia on cd-rom would be most appropriste for a typical tow year old, three year old, four year old, eight year old asked by rena 97. ## physics If the critical angle of a liquid is 41.4 degrees find the index of refraction for that liquid asked by ******tasha****** 98. ## Just Curious A few questions out of curiosity. What does jiskha mean? And what is your view point of Pluto Since Pluto is no longer considered a planet, do you think it should still e called a planet? Not just dwarf planet, but a planet like Mars or Earth? Thanks and asked by &#9829;rebel•stupidity=kathy&#9829; 99. ## math a yellow marble will be drawn from a bag containing 2 black and 6 yellow marbles. what best rep[resents the probability of the event? 0%/25%/50%/75%/100% asked by blanche 100. ## money how would you ask someone for money for school??? asked by Kaya 101. ## English Writeacher, I know you are not there. However, I urgently need someone of you to check this short story. I hope Ms Sue or anyone else will help me. 1) I spent my Easter holidays with my family at my grandparents' house in London. I had a very good time asked by Matthew 102. ## math find T so x-3 is a factor of f(x)=x^3-4x^2+Tx+3 asked by Anonymous 103. ## English Bobpursley, Ms Sue I urgently need you to check this paragraph. Thank you very much in advance!!! I made a change in the last sentence. 1) I spent my Easter holidays with my family at my grandparents' house in London. I had a very good time there, asked by Matthew 104. ## Chemistry 16. You have a series of four chemical reactions (1--> 2 --> 3 --> 4). How do you calculate the H2 if you know the other H values? H2 = (H1)(H3)/(H4) H2 = H4 (H1 + H3) H2 = H1 + H3 + H4 H2 = H1 + H3 H4 asked by JoJo 105. ## Algebra 1 (2x^3 - x^2 - 24x + 12) divided by (2x - 1) asked by stan 106. ## Trig Rewrite 7pi/5 in degrees. asked by Rina 107. ## Chemistry 17. You have the following equations: 2S (s) + 3O2 (g) 2SO3 (g), H = 792 kJ 2S (s) + 2O2 (g) 2SO2 (g), H = ? 2SO2 (g) + O2 (g) 2SO3 (g), H = 198 kJ What is the missing H? asked by JoJo 108. ## English I have been writing this story for English class and would love some input on what i should add to this story. I don't want it to make it a sappy story either. Also sorry for the grammar errors i haven't perfected it yet. The last man on earth sat alone in asked by Steve 109. ## Chemistry 12. In a calorimeter, 10 g of ice absorbs heat with an enthalpy of fusion of 334 J/g. What is the heat absorbed? q = mCHf I am having a lot of trouble on this type of problem in chem. Help and an explanation would be greatly appreciated. Thank you. asked by JoJo 110. ## science 1. The surface tension in a cup of water is caused by _____. (1 point)attractive forces between the water and its container attractive forces between water molecules adhesive forces between water molecules adhesive forces between the water and its asked by NIKE 111. ## math 2+log2(x+2)=3 asked by Anonymous 112. ## physics A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics - asked by Malika 113. ## math (5x^2 + 9) + (7x^2 + -8) asked by Cheril 114. ## math (5s + t) + (-3s + 4t)= asked by Cheril 115. ## math (3n^2 + 4n) + (n^2 + n) = _____ asked by Cheril 116. ## math (2a + 3b + c) + (a + 3b + -4c) =? asked by Cheril 117. ## grammar 1. If we can meet with the patient and he / him / himself, we can discuss possible alternative treatments. A) he B) him C) himself 2. An argument between her boyfriend and her / she resulted in the latest injury. A) her B) she 3. The patient’s son is asked by Jenny 118. ## Math You invest$7,000 in a two-year CD. At the end of the 2 years, you receive $8,331.97. Assume you left the first year' s interest in the account, what was your yearly interest rate? asked by Pat 119. ## Chemistry If 2 grams of acetic acid is reacted with excess 1-pentanol, what mass of pentyl acetate would you expect to achieve theoretically? asked by Leon 120. ## physics A U-shaped tube is partly filled with water and partly filled with a liquid that does not mix with water. Both sides of the tube are open to the atmosphere. If h1 = 0.46 m and h2 = 0.25 m, what is the density of the liquid? on the left side of the tube is asked by Adam 121. ## Physics A double-slit interference experiment is performed with light from a laser. The separation between the slits is 0.58 mm, and the ﬁrst-order maximum of the interference pattern is at an angle of 0.060 ◦ from the center of the pattern. What is the asked by Angel 122. ## Arithmetic Find a geometric series which has a third term of 7/4 and a sum to infinity of 14. asked by Piwo 123. ## Stats A study of the students taking distance learning courses at a university finds that they are mostly older students not living in the university town. Choose a distance learning student at random. Let A be the event that the student is 25 years old or older asked by Anonymous 124. ## math a jar contains 27 blue blocks 18 red blocks 12 orange blocks and 43 green blocks You put your hand in the jar and without looking pull out a block. About what fraction on the time would you expect to get a red block? asked by Madison 125. ## Physics/math A gun with a muzzle velocity of 1200 feet per second is fired at an angle of 6 degrees with the horizontal. Find the vertical and horizontal components of the velocity. asked by Cydni 126. ## science a 40kg student goes to jupiter where the rate of acceleration is 24.5m/s squared what is the students weight on jupiter? asked by melissa 127. ## Math If twenty people in a factory make 43 shoes in [(3)^.5] / 2 hours, then how many shoes do they make in an eight hour day? 397? asked by Jarrod 128. ## Math 3 black beads and 3 white beads are placed on a string in a circular fashion. How many possible color arrangements are there? *Reiny answered the question...just want to check my answers as to the color arrangements. Anyone? asked by lynn 129. ## art 1. This is an identifiable symbol that stands for a company. (1 point)motif logo cartoon sign 2. This term refers to an illustration in an early hand-made manuscript. (1 point)drawing photograph illumination print 3. This term refers to different fonts asked by NIKE 130. ## physics 2 A concave mirror has a focal length of 27.0 cm. The distance between an object and its image is 46.5 cm. Find the object and image distances, assuming the following. (a) that the object lies beyond the center of curvature do = di = (b) that the object lies asked by Anne 131. ## Physics Why is it that interference effects don't show up regularly in glass window panes with two surfaces? asked by Anonymous 132. ## physics A 12 kg toboggan is pulled along at a constant velocity on a horizontal surface by a horizontal force of 11 N How much horizontal force is needed to pull the toboggan at a constant velocity if two 57 kg girls are sitting in it ? asked by Melissa 133. ## math/physics Forces with magnitudes of 2000 newtons and 900 newtons act on the machine part at angles of 30 degrees and -45 degrees respectively, with the x-axis. Find the direction and magnitude of the resultant of these forces. asked by Cydni 134. ## Life orientation What according to the bcea applies with regard to the contraventions that you have identified? asked by NOKULUNGA 135. ## Physics A pair of narrow parallel slits separated by a distance of 0.253 mm are illuminated by the green component from a mercury vapor lamp (λ = 545.1 nm). What is the angle from the central maximum to the ﬁrst bright fringe on either side of the central asked by Angel 136. ## Chemistry What mass of sodium chloride is produced when chlorine gas reacts with 0.29 grams of sodium iodide? Unbalanced equation is given below: NaI + Cl2 -> NaCl + I2 asked by Halie 137. ## physics what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ? asked by kelly 138. ## physics which of collowing situations describe a particle that might have a non-zero velocity? canbe more than one A) a particle that has a constant position as a function of time B) a particle that has its position changing as a fnction of time c)when you graph asked by kelly 139. ## Data management Hugo has a job interview at Telus. He has a 56% of waking up late on the morning of the interview. When he wakes up late he has a 33% chance of missing his bus to take him to the interview. At this rate he will be late and he has a 27% chance of actually asked by Anonymous URGENT PLS 140. ## U.S. History What are some New Deal programs that were not successes? It doesn't have to be a lot, just two or three. Also, was the National Recovery Act (NCA) a failure? Thank you! asked by Annelise 141. ## physics A pebble drops straight down into a tub of water, setting off ____________________ waves that travel at the boundary between the water and air. asked by Raeme 142. ## Math Hugo has a job interview at Telus. He has a 56% of waking up late on the morning of the interview. When he wakes up late he has a 33% chance of missing his bus to take him to the interview. At this rate he will be late and he has a 27% chance of actually asked by URGENT PLS 143. ## Physics A ^9 {\rm {\rm Be}} nucleus containing four protons and five neutrons has a mass of 1.50×10−26 {\rm kg} and is traveling vertically upward at 1.45 {\rm km}/{\rm s}. If this particle suddenly enters a horizontal magnetic field of 1.15 {\rm T} pointing asked by Kaitlin Carter 144. ## physics To say a substance is electrically polarized is to say that its net charge is ____________________. A) either negative or positive, but relatively weak.B) weakly positive in sign.C) None of these.D) is normally zero with opposite charges on opposite asked by Jim 145. ## language arts Having trouble deciding on a review question between and or but. The sentence says, "Newton's ideas about motion are called laws, (and, but) Einstein's idea about relativity is called a theory." Thanks. asked by Brandi 146. ## Physics Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the ﬁrst bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm asked by Angel 147. ## physics Charge polarization is normally produced by ____________________. A) nuclear interactions.B) contact.C) induction.D) friction.E) electrostatic means. asked by Kristie 148. ## physics Which of these are correct for an electric field? A) It's a vector quantity, and can be cancelled.B) Three of three are correct.C) It stores electric energy.D) Two of three are correct.E) It's the altered space surrounding electric charge. asked by Kristie 149. ## Physics A block of aluminum that has dimensions 2.07 cm by 2.55 cm by 5.00 cm is suspended from a spring scale. The density of aluminum is 2702 kg/m^3. (a) What is the weight of the block? 0.699 N (b) What is the scale reading when the block is submerged in oil asked by Maryam 150. ## HCS/490 Do employers have the right to screen employees or potential employees to learn if they are smokers, have chronic diseases, or are overweight? Explain. asked by B 151. ## physcis ! HELP !!!! which of collowing situations describe a particle that might have a non-zero velocity? canbe more than one A) a particle that has a constant position as a function of time B) a particle that has its position changing as a fnction of time c)when you graph asked by kelly 152. ## language arts I've got one more question on conjunctions. The sentence is "One bird you are sure to see is McKay's bunting, which breeds here (and, but) nowhere else." I was thinking it might be but since it is contrasting but wasn't sure. Thanks. asked by Brandi 153. ## physics Electric potential is measured in units of ____________________. A) watts.B) joules per coulomb, or volts.C) joules.D) ohms.E) amperes. asked by Kristie 154. ## physics ! HELP PLEASE !!!!1 what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ? asked by kelly 155. ## to ms.sue the basketball game is tied.your team has the ball.there is only enough time for one more shot.based only on the information in the table,which player would you choose to take the shot? why? player: shots missed: shots made: 12 5 1 6 5 2 0 3 3 2 9 4 3 4 5 asked by Celest 156. ## math what is the answer and estimation for 404x2 asked by deliah 157. ## trig/precalc a car's flywheel has a timing mark on it's outer edge. the height of the timing mark on the rotating flywheel is given by y=3.55sin[x - (pi/4)]. graph one full cycle of this function. I was not taught how to graph a function like this, only the simple y= asked by tabby 158. ## Chem 1010 Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer. asked by Sirena 159. ## Chem 1010 15.3 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 600 mL of solution. Calculate the molarity of the KCl solution. asked by Sirena 160. ## Chemistry What 3 compunds can be used to prepare oxygen in the laboratory? What are the reactions for each of the three compounds? asked by John 161. ## Algebra 2 The sum of two numbers is 100. One number is four more than three time the other number. What are the last numbers? asked by Nancy 162. ## Chem 1010 Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer. asked by Sirena 163. ## Physics Light falls on a double slit with slit separation of 2.19 × 10 −6 m, and the ﬁrst bright fringe is seen at an angle of 12.7 ◦ relative to the central maximum. What is the wavelength of the light? Answer in units of nm Can the person post the steps asked by Angel 164. ## Physics A horizontal segment of pipe tapers from a cross sectional area of 50 cm2 to 0.5 cm2. The pressure at the larger end of the pipe is 1.26 105 Pa and the speed is 0.029 m/s. What is the pressure at the narrow end of the segment? Pa Please help! physics - asked by Malika 165. ## math What equilateral triangle would have the same area as a triangle with side 6, 8 and 10? asked by Baba Don Cooler 166. ## Physics A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water. asked by Akbar 167. ## Physics A house with its own well has a pump in the basement with an output pipe of inner radius 6.4 mm. Assume that the pump can maintain a gauge pressure of 420 kPa in the output pipe. A showerhead on the second floor (7.5 m above the pump's output pipe) has 38 asked by Angelina 168. ## Chemisty A patient has been trying to achieve total blood cholesterol of 175 mg or less per 100 mL. A recent test result of a 3 mL blood sample found that 4.95 mg cholesterol were present. Has the patient reached the goal? asked by Wyatt 169. ## Chemisty How many milliliters of 5.50 M HCl must be diluted to make 350. mL of a 0.500 M solution? asked by Wyatt 170. ## Chemisty 25.0 mL of 0.250 M MgCl is transferred to a 300.0 mL volumetric flask and diluted to the mark with deionized water. What is the concentration of the dilute solution? asked by Wyatt 171. ## Math 3rd grade Fred needs to do quite a few errands. He needs to stop by the cleaners, the post office, the hardware store, and the bank. There are a number of ways he can tackle his list of stops. How many ways can he accomplish his tasks? asked by Andrea 172. ## Geometry Right triangle ABC has an area of 32^3 cm^2. The measure of asked by Cassie 173. ## Geometry An equilateral triangle has a perimeter of 120 inches. What is the area of the triangle? Express your answer in simplest radical form. asked by Cassie 174. ## english write a paragraph of 5-7 sentences to explain how to study for a test. Include at least one single word adjective, one single word adverb, two adjective prepositional phrases and two adverb prepositional phrases. Make sure you identify the adjective, asked by meme 175. ## Geometry a soccer goal is 24 feet wide. point a is 40 feet in front of the center of the goal. point b is 40 feet in front of the right goal post. from which point would you have a better chance of scoring a goal? asked by Chuck 176. ## Pyreenes Mountain Range Are there are col fields a long the Pyrenees Mountain range? asked by &#9829;rebel•stupidity=kathy&#9829; 177. ## Algebra 2 which of the following are not polynomials? A. x^4+ πx^3+√2x B. 3x+x^4 C. 4x^3+2x^2+ √x D. 2x^3/5-x/3+π E.x/4-5/x+10 asked by Nancy 178. ## Chemistry Determine the mass of calcium hydroxide produced when calcium carbide (CaC2) reacts with 0.64 grams of water according to the following balanced chemical equation: CaC2 + 2H2O -> Ni(OH)2 + NaNO3 asked by Halie 179. ## to ms.sue thank you ms.sue.i will remember you forever! here's a special poem for you! ms.sue, she's my favorite teacher too. she gives me ideas, mama-mia. sometimes I ask her questions twice, she is super nice. give a hip hip hooray, today, for the best volunteer, asked by Celest 180. ## to ms.sue i have one more question.it says which team is better, lions: 6 of 8 cyotes: 8 of ten i know the answer is that no team is better because their both the same. how do i explain it why? asked by Celest 181. ## physics Touch a 5000-V charged balloon and you're not harmed because, although the energy/charge ratio is high, there is ____________________. A) very little conduction of electricity.B) very little energy on the balloon.C) no way this large amount of energy can asked by Kristie 182. ## Social Studies 7R - Bill of Rights Project What are the 8 amendments and what are their jobs (that includes interesting facts)? Is their a website for that. Plus make sure it's on a 7th grade social studies level. Thank You! :) asked by Laruen 183. ## SS Help! The 2nd amendment is "the right of the people to keep and use bear arms". what does Right to keep and bear arms means??? (please tell in a 7th grade level) asked by Laruen 184. ## 6th geo a prominent physical feature along the west coast of england is th asked by &#9829;rebel•stupidity=kathy&#9829; 185. ## Chemistry If you have 250 mL of 2 M of sodium sulfate diluted to make 0.500 M of sodium sulfate, how would you figure out the volume? asked by Julia 186. ## science 1. As a sample of matter is cooled, which property of its particles increases? (1 point)average kinetic energy pressure buoyancy cohesive forces 2. Kinetic energy is the _____ of motion. (1 point)temperature energy heat state 3. Substances that have a low asked by NIKE 187. ## Intermediate algebra Find the product.(x-7)(x+7) asked by Lueshelle 188. ## Chemistry HOBr (aq) H+ (aq) + OBr- (aq), Ka = 2.3 x 10^-9 Hypobromous acid, HOBr, is a weak acid that dissociates in water, as represented by the equation. (a) Calculate the value of [H+] in a solution of HOBr that has a pH of 4.95. Ans: 1.1 * 10^-5 M (b) Write the asked by Confused 189. ## Intermediate algebra Essay.show work Find the following product.(y-10)^2 asked by Lueshelle 190. ## intermediate algebra Short answer.The lenght of the side of a rectangular desk is given by 5x-8y cm.The lenght of the front is given by 5x+8y cm.What is the algebraic expression for the are of the top of the rectangular desk?Include the correct units as part of your answer asked by Lueshelle 191. ## Math If a tire rotates at 150 revs/min when the truck is travelling 40km/h, what is the circumference of the tire? 4.44 meters asked by Jarrod 192. ## to ms.sue thank u so asked by Celest 193. ## Physics in an impulse/ change in momentum problem where mv(final)-mv(initial)=Ft if the initial velocity is zero can i cancel out the masses? asked by Emily 194. ## ms.sue can you give me an easy way how to find percentages these ways: _____% of ___?_____ = ___?____ __?___ of ________=_________ asked by Celest 195. ## physics a 15 kg bucket is raised to paint a ladder with an acceleration of 3 m/s.^2 what is the tension in the rope? asked by Leah 196. ## calculus test corrections. 1 question Find the minimum value of f(x, y) = y – x + 1 for the polygonal convex set determined by this system of inequalities. x > 0 y > 0 2x + y< 4 the answer is -1. please tell me why asked by jonna 197. ## math Sonya spent 3/8 of her money and then$15 left. How money did Sonya originally have?

The amount of vitamin c in the breakfast cereal varies directly with the serving size. If 1 and 1/4 cups of cereal provides 10% of the recommended daily value of vitamin c, what percent of the recommended daily value of vitamin c is in two cups of cereal?

199. ## physics

Calculate the net charge on a substance consisting of a combination of 4.3 multiplied by 1013 protons and 2.5 multiplied by 1013 electrons.

200. ## math

________% of 16= 12 ________% of 24= 6

201. ## physics

At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.08 multiplied by 10-15 m. What is the magnitude of the repulsive force pushing these two spheres apart?

202. ## calculus test corrections. 1 question

Which is true for the graph of x^2-9/x^2-4 the answer is vertical asymptotes at x = ±2 but i don't understand why.

203. ## physics

An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 1.7 multiplied by 10-14 m from the gold nucleus? N

204. ## Chemistry

Hydrogen Peroxide decomposes to produce oxygen gas and water, What mass of hydrogen peroxide (H2O2) nust decompose to produce 0.77 grams of water?

205. ## mechanics of machines

A body of weight 500N is lying on a rough plane inclined at angle 3.2 with the horizontal. It is supported by an effort p, parallel to the plane. Determine the minimum and maximum value of P, for which the equilibrium can exist if the angle of friction is

206. ## Math

The time it takes Javier to go to school and his walking rate are inversely proportional. If it takes him 12 mins walking at 3 mph how long does it take if he walks at 4 mph?

208. ## physics

A charge of 2.1 nC and a charge of 4.7 nC are separated by 57.90 cm. Find the equilibrium position for a -4.7 nC charge. _______________cm from the 2.1 nC charge. i know you have to use coulomb's law but how can i use it

209. ## CHEM

When 0.5 mole of CO2 and 0.5 mole of H2 were forced into a litre reaction container, and equilibrium was established: CO2(g) + H2(g) H2O (g) + CO (g) Under the conditions of the experiment, K=2.00 a) Find the equilibrium concentration of each reactant and

210. ## to Lizzy and ms.sue

thank you lizzy. thank you ms.sue.your strategy really helps me alot faster and easier.

211. ## Ms, Sue help me in science

1. As a sample of matter is cooled, which property of its particles increases? (1 point)average kinetic energy pressure buoyancy cohesive forces 2. Kinetic energy is the _____ of motion. (1 point)temperature energy heat state 3. Substances that have a low

212. ## algebra

In the formula p(x) = -.1x^2 + 50x -300, could you describe the meaning of the number -.1 and -300 in the formula?

213. ## math

what is the derivative of y=ln(x/4)

214. ## Physics

A house with its own well has a pump in the basement with an output pipe of inner radius 6.4 mm. Assume that the pump can maintain a gauge pressure of 420 kPa in the output pipe. A showerhead on the second floor (7.5 m above the pump's output pipe) has 38

If the formula D(x,y) = (.7x,.7y) is applied to pre-image point (5, -7), what is the image point?

216. ## Discrete Mathematics

It was proven during the previous lecture that 1+2+3+....+n=[n(n+1)]/2. Using that result, find the sum of all 3-digit palindromes: a palindrome is a number that can be written as ABA, where 1=

The dimensions of a rectangular prism are all whole numbers greater than 1". If the volume is 165 cu", and the height is 5", what is the perimeter of the base?

Two towers are similar. The area of the larger tower is 400 pi ft^2 and the area of the smaller tower is 169 pi ft^2. What is the ratio of the heights of the towers?

219. ## Ms. Sue- thank you

Ms. Sue. I just wanted to say I think you are a very helpful, nice,smart and intelligent woman. Thanks for your help. :) Thank You SO Much!!!

220. ## chemistry

Calculate the pH of the resulting solution if 30.0 mL of 0.300 M HCl(aq) is added to (a) 35.0 mL of 0.300 M NaOH(aq). (b) 40.0 mL of 0.350 M NaOH(aq).

221. ## Statistics

Cellular Phone Sales The probability that a cellular phone company kiosk sells X number of new phone contracts per day is shown below. Find the mean, variance, and standard deviation for this probability distribution. X 4 5 6 8 10 P (X) 0.4 0.3 0.1 0.15

222. ## physics

The weightless horizontal bar in the figure below is in equilibrium. Scale B reads 4.00 kg (N.B. as you know, the scale should read N, but no one told the manufacturer). The distances in the figure (which is not to scale) are: D1 = 9.0 cm, D2 = 8.0 cm, and

223. ## physics

The system in the Figure is in equilibrium. A mass M1 = 242.0 kg hangs from the end of a uniform strut which is held at an angle theta = 41.0o with respect to the horizontal. The cable supporting the strut is at angle alpha = 27.0o with respect to the

224. ## ETHICS

a 350- to 700-word essay comparing the similarities and differences between virtue theory, utilitarianism, and deontological ethics. Include the following in your essay: • A description of the differences in how each theory addresses ethics and morality

225. ## physics

The volume of a gas is 2.6 L and its temperature is 338 K . If the volume of the container were changed to 3.2 L, what temperature would the gas be? (All other values remain constant.)

226. ## Chemistry

Arrange these acids in terms of increasing acidity: CH3COOH, NH3+CH2COOH, CH3CONHCH2COOH Dr.Bob asked me what NH3+CH2COOH is.NH3+CH2COOH is obtained when 1 mol of glycine is added with a very strong acid,which results in both the amino & carboxyl groups to

255. ## geometry 1

a secant-secant angle intercepts arcs that are 3/5 and 3/8 respectively. Find the measure of the secant-secant angle.

256. ## English

What trait best describes gandi

257. ## geometry 2

circle K has an area of 64 pi units ^2. Find the exact length of the arc intercepted by a 210 degree central angle in circle K.

258. ## ALGEBRA

Find three ordered pairs that satisfy the equation. y = x + 2

259. ## ALGEBRA

Assume f(x) = x2 + 3. Find the functional value requested. f(-7) =

260. ## geometry 3

Given: Circle O with radius of length 4 units. measurement of arc PQ=141 degrees. Find the cordinates of point P. Circle O(0,0)

261. ## physics

If the string in one of the panels of the figure below is vibrating at a frequency of 5.0 Hz and the distance between two successive nodes is 0.39 m, what is the speed of the waves on the string?

262. ## ALGEBRA

$$x = \dfrac{1}{{\color{red}2}} y^2$$

263. ## SS7R - Bill of Rights Project

3rd Amendment In the 3rd Amendment homeowners donâ€™t have to put of soldiers in their homes. No soldier shall, in time of peace be quartered neither in any house, without the consent of the owner, nor in time of war, but in a manner to be prescribed

264. ## accounting

What items appear in financial statements of merchandising companies that do not appear in the financial statements of service companies? Why is there a difference?

265. ## chemistry

The decomposition of potassium chlorate, KClO3, gives oxygen gas and solid potassium chloride. How many grams of KClO3 are needed to produce 5.00 L of Oxygen gas at STP? Suppose that the reaction described above produces 4.80 L of O2 in the laboratory.

266. ## Physics

A stream moving with a speed of 0.5 m/s reaches a point where the cross-sectional area of the stream decreases to one-fourth of the original area. What is the water speed in this narrowed portion of the stream?

267. ## Chemistry

I need help ASAP! Colligative Properties- Ethylene glycol (C2H6O2) is the principal ingredient in antifreeze. How many grams of ethylene glycol will be needed to lower the freezing point of 2100 grams of water by 20 degrees celcius?

268. ## accounting

Discuss the ethics of what Amy is doing. Are there any consequences to her actions? How does the store account for Amy’s returns?

269. ## english 2

What is the correct way to write this sentence? Also with it being on the internet people will be able to buy it immediately instead of having to wait.

The chart below shows an expression evaluated for four different values of x x: x2+x+5: 1 7 2 11 6 47 7 61 Josiah concluded that for all positive values of x, x2+x+5 produces a prime number. Which value of x serves as a counterexample to prove Josiah’s

271. ## chemistry

Is calcium oxalate, CaC2O4, soluble in water?

272. ## Chemistry

I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me ..

273. ## Chemistry

I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me ..

274. ## math

two billion,six hundred million in expanded notation using powers of 10 (2x 10^11) + (6x10^8) would that be correct??

275. ## physics

A sound wave with intensity 37 mW/m2 interferes constructively with a sound wave that has an intensity of 18 mW/m2. What is the intensity of the superposition of the two?

276. ## math

Sharon brought 12 apples to the picnic. After the picnic, 2 apples were left. What fraction of the apples were eaten.

A block of wood, with density 828 kg/m3 , has a cubic shape with sides 0.340 m long. A rope of negligible mass is used to tie a piece of lead to the bottom of the wood. The lead pulls the wood into the water until it is just completely covered with water.

278. ## physics

How many grams of KOH are required to neutralized 300ml of 5.0 N HN03 solution? final answer nyan 84 grams kailangan nalang namen ng solution