Questions Asked on
May 19, 2013

  1. first additional language

    how did youth day came?

    asked by Emily
  2. chemistry

    Complete the mass balance expression for a saturated solution of Ag2CO3. Note at least one blank is a numeric coefficient. (Note: Ignore any subsequent reactions of Ag .)

    asked by Lana
  3. Algebra

    I'm stuck!! Can someone please help me with this problem?? A triangle has vertices (1, 4), (1, 1), and (-3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What

    asked by Melania
  4. science

    A science teacher tells her class that their final project requires the students to measure a specific variable and determine the velocity of a car with no more than 2.5% error. Jennifer and Johnny work hard and decide the velocity of the car is 34.87 m/s.

    asked by JUSTIN
  5. Physics

    A race car starts from rest in the pit area and accelerates at a uniform rate to a speed of 35 m/s in 11s, moving on a circular track of radius 500 m. Determine the tangential and centripetal components of the net force excreted on the car(by the ground)

    asked by Martin
  6. physics

    A football is kicked with a velocity of 31 m/s at an angle of 41. What is the ball's acceleration in the vertical direction as it flies through the air?

    asked by rayvia
  7. Chemistry

    How many oxygen atoms are in a) 3.21 x 10^22 molecules CH3OH b) .250 mol C6H12O6 Is it a) 3.21 x 10^22 atoms b) 9.03 x 10^23 atoms

    asked by K
  8. physics

    Find the tension T2 of the box hanging from the rope if 1 = 25°, 2 = 65°, T1 = 60.58 newtons, and W = 143.4 newtons answer please

    asked by Anonymous
  9. physics

    Two uniform 81.6 g marbles 1.81 cm in diameter are stacked in a container that is 2.78 cm wide. 1) Find the force that the container exerts on the marble at the point of contact A, B and C. 2) What force does each marble exert on the other?

    asked by Anonymous
  10. maths

    Rhombus ABCD is similar to rhombus BFDE.The area of rhombus ABCD is 24 and angle BAD=60 degrees .What is the area of rhombus BFDE?

    asked by ramesh reddy
  11. chemistry

    Write the half reaction and balanced equation for: Cl2(g) + H2(g) -> HCl(aq) so I got: 2e- + Cl2(g) -> 2Cl- H2(g) -> 2H+ + 2e- so Hydrogen is oxidized and Chlorine is reduced so for cell notation I put: Pt(s)|H2(g)|H+(aq)||Cl2(g)|Cl-(aq)|Pt(s) but the

    asked by Hugh
  12. Chemistry

    NOCL(g) decomposes to from nitrogen monoxide gas and chlorine gas. The equation is 2NOCL ----> 2NO +Cl2 At a certain temperature the equilibrium constant is 1.60 x 10^-6. Calculate the equilibrium concentrations of all gases if 0.800 moles of NOCL are

    asked by Maeve
  13. Chemistry

    What happens if sodium acetate (CH3COONa) is added to the following reaction? CH3COOH  H+ + CH3COO- a) [H+] increases b) [H+] decreases c) a precipitate is formed d) [H+] does not change

    asked by scilover
  14. algebra II Part 2

    The equation h=7 cos{pi/3 t} models the height h in centimeters after t seconds of a weight attached to the end of a spring that has been stretched an then released. (C).Find the times at which the weight is at a height of 1 cm,of 3 cm,and of 5 cm below

    asked by Karen
  15. Chemistry

    A mixture of lead, magnesium, nitrate and chromate ions are present in a solution. What will the precipitate be? a) MgPb b) Pb(NO3)2 c) PbCrO4 d) MgCO3 I think its d)- am i right?

    asked by scilover
  16. math

    Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70

    asked by xaad
  17. English

    Compare and contrast the role of nature and the natural world in two poems from this unit: Walt Whitman’s “Come Up from the Fields Father” and Sara Teasdale’s “There Will Come Soft Rains.” Be sure to use specific examples from both poems to

    asked by Anoymous
  18. physics

    How long does it take light to travel through a 2.7 mm-thick piece of window glass?

    asked by joe
  19. Algebra

    I need help with two math problems. 1. A triangle has vertices (1, 4), (1, 1), and (-3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90 degrees counterclockwise about the origin. What are the vertices of

    asked by Kelly
  20. math

    Let Y be the number of successes in n independent repetitions of a random experiment have probability of success = 1/4. Determine the smallest value of n so that P(1 = Y) = 0.70

    asked by xaad
  21. Chemistry

    In the following unbalanced reaction, which atom is oxidized? HNO3 + HBr -> NO + Br2 + H2O Is the answer bromine?

    asked by Anonymous
  22. math

    The effective rate of interest corresponding to a nominal rate 3%p.a payable half yearly is..?

    asked by nitu
  23. math

    the sales tax is 6% and the item is $110.00. How much do I add for sales tax?

    asked by arline
  24. math

    a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?

    asked by john
  25. math

    At an airport, a flight controller was in a tower 40m above the ground. When she first observed a plane it was at an angle of elevation of 12 (degrees) from her line of sight and flying at a constant altitude (height) The plane had a constant speed of

    asked by alice
  26. English

    Can somebody please help me write a summary news lead using the story below. The lead may be no longer than 20 words and must be written in the active voice. Gary hubard, superintendent of schools, announced a new program for your local school district. It

    asked by Afranko
  27. physics

    A ball of mass 8kg falls from rest from a height of100m neglecting air resistance calculate.its total enegy after falling a distance of 400.

    asked by Gbadebo oluwatosin
  28. chemistry

    hydrogen gas can be produced by reacting aluminum with sulfuric acid .How many L hydrogen gas are produced by reacting 15.0 mol of sulfuric acid with 15.0 mol of aluminum at STP?

    asked by may
  29. Algebra II Part 2

    Use a graphing calculator to solve the equation -3 cos t=1 in the interval from 0 to 2p.Round to the nearest hundredth

    asked by Karen
  30. PSY210 Psychological Statistics

    Simply reporting measures of central tendency or measures of variability will not tell the whole story. Using the following information, what else does a psychologist need to know or think about when interpreting this information? A school psychologist

    asked by Scrowe
  31. Math

    prove identity Sin2x - sinx/cosx + cos2x= sinx/cosx + 1

    asked by Matthew
  32. CIT

    find the dimension of the largest triangle that can be inscribe in the ellipse 9x^2+16y^2=144. The sides of the rectangle are parallel to axes of the ellipse

    asked by lian
  33. geometry

    A rhombus has a diagonal with a length of 17 ft. and a side measurement of 9.5 ft. What is the area of the rhombus?

    asked by beck
  34. world geography

    1. In a/an _______ economy, the production of a wide range of manufactured products becomes more economically important than primary production and a service sector begins to develop. A. diversified B. developing C. production D. international 2. In

    asked by chris
  35. physics

    Three wires are arranged in an equilateral triangle as shown in the figure below. The lower two wires are 4.00 apart. Assume all the wires are 1.35 long for this problem (extending into the screen).

    asked by Anonymous
  36. math

    In surveys about sensitive topics, respondents are sometimes given ways to “hide” their answers from the surveyor. In a survey of taxpayers, one of the questions is, “Did you cheat on your taxes?” To answer, the respondent is asked to toss a coin.

    asked by tms
  37. math grade 8

    Hi! I have to sketch 3D shape of the house using triangular prism, rectangular prisms, cube, and cylinder.I have to include measurement calculations with formulas. I already did it all, but someone told me that the SA (surface area) of my house calculated

    asked by mark
  38. math

    Find the mininum product of two numbers whose sum is 55

    asked by lori
  39. math please hurry

    A secret code must consist of three capital letters followed by a digit. Letters cannot be repeated. How many secret codes are possible? A. 140,400 B. 156,000 C. 175,760 D. 358,800

    asked by sophie
  40. French (SraJMcGin)

    SraJmcGin, Could you please teach me how to type the accents in French on a computer? I'm not sure how to do it, and I don't want to print out my writing and write the accents with a marker or pen. I also fixed up my Sacre-Couer sentence; is this better?

    asked by Deidre
  41. English

    Taking turns with your partner, talk about the things which you don't need to do on Sunday. 1. What don't you have to do on Sundays. 2. Let me know the things you don't have to do ons Sunday. 3. Would you say an activity you don't have to do on Sunday? 4.

    asked by rfvv
  42. Music

    Name an interval between two white keys with a black key between them. Thanks

    asked by mysterychicken
  43. statistics

    The body temp of normal healthy persons are normally distributed with a mean of 98.2 degrees F and a standard deviation od .62 degree F. If we define a fever to be a body temp above 100 degrees F, what percentage of normal and healthy person would be

    asked by Anonymous
  44. Math

    Evaluate each expression for the given value of the variable 3-y2+fory=5

    asked by Diamond_98_
  45. math

    a boy walks 2 miles east from his home ans then turns south and walks an additional 1.5 mile. how far is he from his home?

    asked by john
  46. Math

    If the inputs are: 1, 2, 3, 4, 5 and my outputs are: 1, 5, 11, 19, 29, what is the rule?

    asked by Blue Ting Ting
  47. Chem

    if 15.0g Si and 30.0g Chlorine gas are reacted together, what vol. of SiCl4 will be produced assuming a 75% yield? Density of SiCl4 =1.483g/ml.

    asked by Shun
  48. science

    would you expect more fertile land near the river in the mountains or on flat land

    asked by Anonymous
  49. Math - Probability

    Annabelle wants to move to a new city. If her chance of getting a job in Montreal is 10%, and her chance of getting a job in Vancouver is 35%: 3a) What is the probability that Annabelle will be offered both jobs? 3b) What is the probability that she will

    asked by Jess
  50. Geometry

    a teepee with a dirt floor in the shape of a right cone has a slant height of 26 feet and a radius of 12.5 approximately how much canvas would be needed to cover the tepee?

    asked by dem
  51. geometry

    The area of a square is 81 square centimeters. What is the length of the diagonals?

    asked by beck
  52. HISTORY

    Why did European countries expand and take colonies overseas? Why didn't others powerful societies like the Ottomans, Ming Chinese take the same path?

    asked by AhmadM
  53. geometry

    This question is about the shape of a kite. LINE AC bisects ANGLE BCD and ANGLE BAC ANGLE BCD = 50 degrees ANGLE BAD = 80 degrees LINE DC = 10mm LINE BE = 3mm What is the area of the kite?

    asked by beck
  54. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

    asked by Anonymous
  55. Algebra

    The profit for a company that sells chairs is defined by P= -5x^2+200x+200. Where P is profit and x is the number of chairs produced. Find the number of chairs "x" that will produce the maximum profit "P".

    asked by Sophia
  56. algebra

    Car A leaves a certain point traveling at an average speed of 40 mph. 3 hours later, car B leaves the same point traveling at an average speed of 55 mph. How soon will B catch up to A? 4 6 8 10

    asked by Callie
  57. english

    revise the following sentences to eliminate shifts in tense, mood, voice or person. 7. The flight attendant said, "please turn off all electronic devices," but that we could use them again after takeoff. 8. The real estate market was was softer than it has

    asked by dani
  58. Geometry

    asked by Trevon
  59. Mathematics

    The length of a rectangular backyard is 7 feet less than four times its width. If the area of this garden is 15 ft2, find the length of the garden?

    asked by Amy
  60. chemistry

    What is the hydrogen ion concentration, in mol dm−3, when 2.00 g of sulfuric acid is dissolved in water to give 0.400 dm3 of solution? could you explain in a simple and clear way please because im not very good at chemistry. thanks in advance

    asked by becky
  61. 7TH GRADE MATH

    If the radius of a cylinder is 1.8 meters and its height is 7 meters, the volume of the cylinder is approximately 71.2 cubic meters...true or false I say false because shouldn't it be 71.2 cubic 3? Am I correct?

    asked by Daniel
  62. Chemistry

    A bracelet containing .200 mol of metal atoms is 75% gold. How many particles of gold atoms are in the bracelet?

    asked by K
  63. chemistry

    Describe the preparation of 2litre of 0.05molar silver from the primary standard grade solid.

    asked by Ade otunba naim
  64. plane geometry

    if an obtuse triangle has an area of 28 sq.in. how do you find the base and height?

    asked by harmin
  65. chemistry

    What is the primary standard for the preparation of silver.

    asked by Ade otunba naim
  66. chemistry

    What is the primary standard for the preparation of silver.

    asked by Ade otunba naim
  67. math

    If y = 18x+5 is the regression line of x on y then the value of bxy is what ?

    asked by kumar
  68. Math

    Sarah was given a sum of money. She spent the same amount of money each day. She spent 2/7 of her money in 6 days. After another 5 days, she had $20 left. How much money did she have at first.

    asked by Sarah
  69. algebra

    how to find out the individual price of a 5 tacos and 8 burritos if the total is $13. 76 and the price 6 tacos and 7 burritos if the total is $14. 26?

    asked by cosi
  70. geometry

    Sam went to the park and saw a work crew putting in a square garden. She found a tape measure that was stretched between opposite corners with a measurement of 171.1 feet and decided to find the area. What is the area of the square in yards?

    asked by beck
  71. Algebra

    A fireman leans a 40-ft long ladder up against a building. The base of the ladder creates an angle of elevation of 32 degrees with the ground. How far is the base of the ladder from the base of the building? Round to the nearest whole foot, if necessary.

    asked by Allan
  72. Civics

    List the basic problem of scarcity and how it drives economic decison-making. Describe the role of factors of production. What is supply and demand? Apply the principles of supply and demand that predicts market prices and incentives for buyers and

    asked by Abigail
  73. math

    If 1/cos - cos=a^3 and 1/sin - sin=b^3 Show that tan=a/b

    asked by David
  74. math

    tan(180-x)sin(360-x)cos90-x)cos(-x)/sin(x-180)cos(450+x)tan(180-x)

    asked by shane
  75. math

    PQ is a vertical tower 95m high, the points R and S are on the same horizontal plane as Q, the angle of elevation of P from R is 35 if QS =155m and Q from RQS=48 1.Calculate the distance of QR 2.Calculate the distance of RS 3.Calculate the are of QRS

    asked by victor
  76. ECONOMICS

    WHAT ARE WELFARE PAYEMENTS OR CONSUMERS SUBSIDIES

    asked by SIMON
  77. math

    Can someone please help? Solve the differential equation dy/dx = 6xy with the condition y(0) = 40 Find the solution to the equation y= ______

    asked by mark
  78. life orientation

    Conclusion in which you explain in 1 paragraph what you have learn in this assignment and how it has change the way in which you will view lifestyle disease or behaviour in the future

    asked by Anonymous
  79. French-SraJMcGin

    Thank you so much for your help with the accents! I had to switch keyboards for my laptop, so now it works. Could you please correct my sentence now? 1. La Basilique Sacre-Couer est une église catholique à Paris. Elle est très belle, et très grande. Au

    asked by Deidre
  80. economics

    Bob and his dad visited the hardware store on Saturday. They observed the following transactions: Mr. Harris bought 4 for 0.50, Mrs. Clarke bought 21 for $1.00, Mr. Montaro bought 1,134 for $2.00 and Ms. Park bought 450 for $1.50 What were they buying?

    asked by Jean
  81. Life oritation

    In 10 _15 lines critically discuss 5 ways in which the human or environmetal problems impacts mn the community . Provide relevent sources to support your claims

    asked by Anonymous
  82. geometry

    Jim is in the process of having a hole dug for a trapezoid shaped swimming pool. The pool will take up 121 square meters of the backyard. The distance from one base to the other is 11m. What is the median of the pool?

    asked by beck
  83. Applied Physics

    A 22g bullet is fired at a muzzel velocity of 509m/s from an 8.75 kg gun with a barrel 72cm long. the force on the bullet while it is in the barrel is about?

    asked by Anonymous
  84. geometry

    This shape is a trapezoid with a semi-circle attached to the side. LINE AB = 8m LINE AD = 8m This is the part of the semi-circle. LINE BC = 10m This is the diagonal side of the trapezoid. What is the area of the shape? What is the perimeter?

    asked by beck
  85. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

    asked by Anonymous
  86. geometry

    Shape is a trapezoid: LINE AC = 12dm LINE FD = 13dm LINE BE = 14dm LINE CG = 10dm This line makes the right angle of the triangle What is the area?

    asked by beck
  87. chemistry

    A certain weak base has a Kb of 7.80 × 10-7. What concentration of this base will produce a pH of 10.17?

    asked by Lana
  88. advanced algedra 2

    Factor the following quatric equations: a) x^4-9x^2+18

    asked by Tiara
  89. Algebra

    I am reposting to correct a mistake. I forgot to add a decimal point. An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -4.9 t^2 + 68.6 t meters. Given that this object has an

    asked by Amy
  90. English

    1. Energy can be made when we walk or run wearing these shoes. 2. Energy can be made when we walk or run while we wear these shoes. 3. Energy can be made when we walk or run while we are wearing these shoes. (Which is the same as #1? #2 or #3? Or Are the

    asked by rfvv
  91. Physics HELPPP PLEASEEE

    A 0.60 kg sphere rotates around a vertical shaft supported by two strings, as shown. If the tension in the upper string is 18 N. Calculate the tension in the lower string? the rotation rate (in rev/min) of the system?

    asked by Joeline
  92. Spanish

    1) ¿ Hace un mes nadas en el mar? Hace dos meses. A. Cuánto tiempo hace B. Cuánto tiempo hace que C. Hace un mes D. A qué hora I said C 2) Hace tres horas ______ el piano. Me duelen mucho los dedos. A. que toco B. yo toco C. qué toco D. me toca I said

    asked by Eri
  93. Chemistry

    What are the Oxidation and Reducation reactions for these equations : BaCl2 + NaHCO3 -> BaCO3 + NaCl + HCl (carbon is the reduction reaction, but I don't know what the oxidation reaction is) CaCO3 + HCl -> CaCl2 + CO2 + H2O

    asked by K
  94. math

    Solve for x if sin2x=cos(x+30) for x [-180;180]

    asked by kim
  95. math

    the height of a soccer goal is 0.5 feet more than one third of its width. if the area of this goal is 117ft^2, find the width of the goal

    asked by john
  96. Mathematics

    The temperature, T (in ºF), of a car's radiator during the first 4 minutes (t 4) is given by T = 6.2t2 +12t +32. How long does it take the temperature to reach 120 ºF after the car has begun operating?

    asked by Anonymous
  97. Physics

    A system consisting of two fixed and two movable pulleys has a mechanical advantage of 4.00. If a force of 124 N is exerted, which weight can be raised?

    asked by Paul
  98. chemistry

    What is the primary standard for the preparation of silver.

    asked by Ade otunba naim
  99. chemistry

    What is the primary standard for the preparation of silver.

    asked by Ade otunba naim
  100. math

    in a grocery store, butter is sold in “sticks” that are shaped like little bricks. The weights of these sticks are like draws at random with replacement from a population with average 4 ounces and SD 0.2 ounces. The grocery store receives the butter in

    asked by tms
  101. math

    In a population of 10,000 adults, 20% are smokers. A simple random sample of 600 of the adults is drawn. a)The SE of the number of smokers in the sample is closest to 9.45 9.5 9.55 9.6 9.65 9.7 9.75 9.8 9.85 9.9 b)The chance that there are fewer than 115

    asked by tms
  102. math

    If sin57=m Express the following 1. sin 237 2. Cos 33 3. Cos 3 4. Cos 66

    asked by Andy
  103. Math log equations/exponential form

    How do i express this to exponential form? a) log√2(w^2 x^3/y^5 z^7) b) log(x^2 y^3 √z-1)

    asked by gem
  104. statistics

    For certain x and y series which are correlated, the two lines of regression are 5x-6y+9=0 , 15x-8y+130=0. The correlation coefficient is :

    asked by anand nanda
  105. L.O

    5 WAYS IN WHICH HUMAN OR INVIROMENTAL PROBLEMS IMPACTS ON THE COMMUNITY

    asked by syabonga
  106. Quadratic equations from standard to factored

    Standard to factored form? a)y=x^2+7x+10 b)y=2x^2-x-3 c)y=x^2-9

    asked by John
  107. geometry

    A rhombus has a side that is 14cm long. One of its diagonals is 24cm long. What is the area?

    asked by beck
  108. math

    General solution Cos^2 +3sin= -3

    asked by Wayne
  109. life orientation

    which human problem impacts on the community?

    asked by thangithini
  110. life orintation

    factors that can make a person to be infected by hiv aids

    asked by raymond
  111. math master need your help

    what is next number in the sequence 12,6,4,3,2,12/5,... and 1,4,15,40,85,156,259,400,585,... also show the sequence scheme,kindly and ur last answer was wrong as 43 it was 49 for 43^2082

    asked by jamesbond
  112. geometry

    what is the area of a regular hexagon with a side length of 6cm?

    asked by beck
  113. mathematics

    a small circular pool is enclosed in a square. find the area inside the square but outside the circle

    asked by roxy
  114. health

    What are the four structures of the lungs

    asked by Yonette
  115. Math

    Can anyone help me with this? The marginal cost for items in dollars is given by C''(x) = 2x + 30. If the cost of producing 2 items is $220, determine the cost function. What is the cost function? C(x)= _________________

    asked by Jenny
  116. Math

    Given f(x)= (x-4)^2-1 What is the vertex of the graph of this function

    asked by Praphul
  117. soc 120

    Different ethical theories (Points : 1) can never offer useful information. must always contradict each other. can agree that certain acts are morally justified. always agree that certain acts are morally justified.

    asked by tia
  118. life orientation

    how does HIV/AIDS affect teenagers?

    asked by raymond makwela
  119. To GANDU MAN

    Your geometry problem of yesterday has been answered. http://www.jiskha.com/display.cgi?id=1368886945

    asked by MathMate
  120. life orientation

    how does hiv affect teenagers?

    asked by Raymond Makwela
  121. Algebra

    How do i factor this problem completely? 216x^3 - y^3

    asked by Mandy
  122. maths

    how to make a project on mathematics application?

    asked by Gagandeep
  123. maths

    how to make a project on mathematics application?

    asked by Gagandeep
  124. math

    simplify with steps 5(√32)^3

    asked by kiko
  125. physics

    A gas at 273 kelvin expands by 0.1 cubic metre if it is heated through 50 kelvin. Calculate the original volume at constant pressure

    asked by alistair jacobs
  126. life orientation

    Provide 5 or more ways in which you critically discuss how life style / behaviour disease impact on the teenager

    asked by Anonymous
  127. civics

    what are the main challenges to acheiving justice in American Society today and how can those challenges best be met?

    asked by Anonymous
  128. human life

    name two community organizations involved in redressing air pollution and how these organisations redress air pollution

    asked by lungani
  129. chemistry

    How many liters of 0.50M NaOH must be added to 125 mL of 0.75M HCL to neutralize it

    asked by KJ
  130. Scientic Notation

    A family refers to a group of two or more people related by birth, marriage, or adoption who reside together. In 2000, in Country A, the average family net worth was 430,000 and there were about 9.2 x 10 to the seventh power families. Calculate the total

    asked by Anonymous
  131. economics

    what is the south african government providing to whom?

    asked by wendy
  132. math

    Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

    asked by mark
  133. maths

    given f(x)=x^3-x^2-8x+12,draw a graph of f,showing all intercept with axes and turning point

    asked by Kay-Cee
  134. math:vertex,axis of symmetry,min/max,

    How do i find the vertex,axis of symmetry,min/max value? a) x^2-9x+y+20 b) f(x)=-5/4x^2+5/28x-5/114 c) f(x)=5x^2+x+4

    asked by John
  135. math

    Sorry I posted this question earlier with a error. Can anyone help me solve this now? Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 5 = upper limit

    asked by mark
  136. PhySics

    Using several bags filled with different amounts of the same item, take the mass of each and develop a procedure to determine the mass of a single item. (modelling milikan's oil drop experiment)

    asked by HELP
  137. math

    1.) Calculate the area of a circle with radius 8.5 inches. . 2.) Calculate the area of a circle with the diameter 15 feet. . 3.) Calculate the area of a circle with radius 9 feet

    asked by justin
  138. PHYSICS

    The object of the long jump is to launch oneself as a projectile and attain the maximum horizontal range (Fig. 3–26). Here we shall treat the long jumper as a particle even though the human body is fairly large compared to the size of the trajectory.

    asked by Anonymous
  139. math

    If it is given tan(A-B) tanA-tanB/-1+tanAtanB and tanP-1/1+tanP=tan195 Find the value of P

    asked by james
  140. Physics

    A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"

    asked by AMK
  141. Mechanics

    A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"

    asked by AMK
  142. Physics

    A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"

    asked by AMK
  143. math

    2 51 45 58 41 44 37 38 40 44 45 40 59 45 44 34 44 43 48 32 38 1.Determine the mean of the data 2.Determine the standard deviation of the data

    asked by jacob
  144. Mathematics

    A toy projectile drives 12 meters, stops, and is stationary before launching 34 meters into the sky. At what angle, with respect to its starting point, is the toy located?

    asked by Anonymous
  145. life orientation

    impact of environtal problem in community.

    asked by december
  146. Algebra

    An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y= -4.9t^2+68.6t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach? How long

    asked by Sophia
  147. Algebra

    An object is fired vertically upward with an initial speed of 68.6 meters/second. After t seconds, the height is shown by y = -49 t^2 + 68.6 t meters. Given that this object has an initial speed of 68.6 m/s, what is the maximum height it will reach?

    asked by Amy
  148. algebra

    after a mans weight increased 8% he weighed 167 pounds. how much did he weight to start with

    asked by steve
  149. Algebra

    an airplane travels at an average rate of 135 miles per hour (distance = rate x time) How many seconds does it take to travel 2.5 miles? 13.6 66.7 54.3 74.8

    asked by Callie
  150. math

    If the width of a rectangle is 6 inches and its perimeters is 38 inches find the length of the rectangle?

    asked by Anonymous
  151. science energy conversions

    List the energy conversions in these situations. A drum set causes many dishes to rattle. Temperature differences cause wind.

    asked by Anonymous
  152. Math

    Can someone help me answer this? Determine F ' (x) and F ' (1) if F(x) = integral sign lower limit = 4, upper limit = x 4t^10 (2 t^(1) 0 + 8 ln t) ^4 dt a) F ' (x) = b) F' (1) =

    asked by mark
  153. math

    Solve for x sin2x=cos(x+30)

    asked by larry
  154. science

    a particle takes 6.28seconds to complete one revolution.its angular speed is

    asked by ayesha
  155. Social studies

    How did monteqeieus system reflect John lockes ideas about government ?

    asked by Jackie
  156. science

    where does the energy needed to heat up cold water come from?

    asked by sam
  157. math

    Prove that Sin x + tan x / 1+cosx =tan x

    asked by lindsay
  158. English

    You can send the money over the Internet. You don't have to go to the bank. (In the second sentence, what is the use of 'the' before bank? Is 'the' in the generic use or does 'the bank' mean a specific bank in mind?)

    asked by rfvv
  159. Mathematics

    A bicycle tire turns at 133.0 rpm and has a radius of 40.0 cm. The speed (v = r) of the bicycle is about

    asked by Paul
  160. advanced algedra 2

    Factor the following quatric equations: a) x^4-9x^2+18

    asked by Tiara
  161. Math

    1. Natureland Garden Center buys lawn mowers that list for $679.95 less a 30% trade discount. What is the dollar amount of the trade discount? 2. What is the net price of each Natureland Garden Center lawn mower?

    asked by zeenat
  162. Math

    1. Fantasia Florist Shop purchases an order of imported roses with a list price of $2,375 less trade discounts of 15/20/20. What is the dollar amount of the trade discount? 2. Using your answer to the question above, what is the net dollar amount of that

    asked by zeenat
  163. physics

    If the electrical field due to a point charge is .000602N/C what is the magnitude of the field (N/C)3.51 times as far away?

    asked by angela
  164. physics

    a pair of parallel plates is charge by a 30.3V battery, if the field between the plates is 1050N/C how far apart are the plates? answer in meters

    asked by angela
  165. Chemistry

    Find the polar coordinate of the following. (0,-6) I know r = sq.root of 6 but tan theta = -6/0 doesn't exist so how will I find the degree? Thanks

    asked by Shadow
  166. Film

    Which of the following is true of the screenwriter’s role in making movies? (Points : 1) A film begins with a writer’s story Film is generally considered a writer’s medium The writer is more important than the rest of the cast and crew Writing

    asked by John
  167. math

    400 is a three-digit square number that makes a one-digit square number when its digits are reversed.How many three-digit squares are there which make three -digit squares when their digits are reversed

    asked by lian
  168. Chemistry

    Suppose we are dealing with calcium chloride as opposed to the chemical in the video. If a solution contains 70 g of calcium chloride per 100 g of water at 25 degrees Celsius, is the solution unsaturated, saturated, or supersaturated?

    asked by Moise
  169. trigonometry

    If sin 57=m then express the following questions 1. Sin 237 2. cos 33 3. cos 3 4. cos 66

    asked by jaden
  170. math

    find the value of x 2^5x/2x=5(√2)^20

    asked by kiko
  171. math

    Can someone help me answer this? If a < 5 the define integral [a, 4] 2.4e^(1.4x)dx = 44 Find the value a Define integral = integral sign a = lower limit 4 = upper limit

    asked by mark
  172. financial management

    What is the value of a share of common stock that paid $2.00 last year, the growth rate is 8%, assume the risk free rate is 4%, the market return is 10% and the Beta is 1.5.

    asked by Johnny
  173. Compensation and Benefits

    Which one of the following characteristics is not critical in defining a team

    asked by Anonymous
  174. PHI 103

    I need some references of stereotype

    asked by lisa
  175. Mechanical Engineering

    A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"

    asked by AMK
  176. MATLAB

    A load W=2 kN is applied vertically to joint C of truss ABCDE as indicated. You will use the method of joints to obtain the axial forces in the bars and reactions at the supports A, E . We start with the classification of the degrees of freedom as "free"

    asked by AMK
  177. math

    if the pre-image's perimeter was 104 units, what is the images's perimeter

    asked by tom
  178. social studies

    1.name some produse that come from mass

    asked by steven yu
  179. English

    Posted by rfvv on Sunday, May 19, 2013 at 10:17pm. 1. Energy can be made when we walk or run wearing these shoes. 2. Energy can be made when we walk or run while we wear these shoes. 3. Energy can be made when we walk or run while we are wearing these

    asked by rfvv
  180. Math simplify

    How Do I simplify this? a) 4√-27a^3b

    asked by Kat