Questions Asked on
July 11, 2012

  1. Physics

    A ball (mass m = 250 g) on the end of an ideal string is moving in a circular motion as a conical pendulum. The length L of the string is 1.84 m and the angle with the vertical is 37 degrees. a) What is the magnitude of the torque (N m) exerted on the ball

    asked by Joe
  2. math

    diners frequently add 15% tip when charging a meal to a credit card.what is the price of the meal without the tip if the amount is $13.80? how much was the tip

    asked by verkesia
  3. Statistics

    1) A sample of 49 observations is taken from a normal population. The sample mean is 55 and the sample standard deviation is 10. Determine the 99% confidence interval for the population mean. 2) The Fox TV network is considering replacing one of its

    asked by McKenzie
  4. english

    Structure an ESA (straight arrow pattern) based lesson for an elementary level class in which the learners would learn the vocabulary of clothes and be able to use it when describing what people wear and are wearing

    asked by chana
  5. finance

    A firm wishes to maintain an internal growth rate of 4.5 percent and a dividend payout ratio of 60 percent. The current profit margin is 7.5 percent and the firm uses no external financing sources. What must the total asset turnover be?

    asked by aisa
  6. Physics

    A ball (mass m = 250 g) on the end of an ideal string is moving in a circular motion as a conical pendulum. The length L of the string is 1.84 m and the angle with the vertical is 37 degrees. a) What is the magnitude of the torque (N m) exerted on the ball

    asked by Joe
  7. physics

    A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on with a 0.600 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?

    asked by Danielle
  8. Statistics

    A comparison is made between two bus lines to determine if arrival times of their regular buses from Denver to Durango are off schedule by the same amount of time. For 51 randomly selected runs, bus line A was observed to be off schedule by an average time

    asked by Alisha
  9. Math

    a square painting is surrounded by a 2.5cm frame. if the total are of the painting plus frame is 3600 sq cm, find the dimensions of the painting.

    asked by Maui
  10. physics

    The electron gun in a television tube is used to accelerate electrons with mass 9.109 × 10−31 kg from rest to 3 × 107 m/s within a distance of 4.7 cm. What electric field is required? The funda- mental charge is 1.602 × 10−19 C. Answer in units of

    asked by Anonymous
  11. accounting

    You have just purchased a house and have obtained a 30-year, $200,000 mortgage with an interest rate of 10 percent. Required: a. what is your annual payment? b. Assuming you bought the house on Jan. 1st, what is the principle balance after one year? c.

    asked by scotty
  12. geometry

    Write the compound statement in symbols Let r= The food is good p= I eat too much q= I'll exercise If the food is not good, I won't eat too much.

    asked by angela
  13. Physics

    A uniform plank of lent light 5m and weight 225N Rests horizontally on two supports with 1.1m of the plank hanging over the right support. To what distance,X, can a person weighing 450 walk On the overhanging part of the plank before it just begins to tip?

    asked by hayley
  14. Chemstry

    For the reaction A(g) + B(g) C(g) + D(g) the equilibrium constant K is defined as K = Y(sub y) * Y(sub D) / (Y (sub A) * Y(sub b)) where y is the molar fraction of the gas phase of a species At 620.00 K, the equilibrium constant is 1.100. Suppose the feed

    asked by Simon
  15. Physics

    A crate of mass 29 kg is pushed up a ramp by a person as shown in the figure below. The person pushes the crate a distance of 25 m as measured along the ramp. Assume the crate moves at constant velocity. Assume the coefficient of kinetic friction between

    asked by Sierra
  16. english

    what type of clause or phase is painting Frances has plenty of time to devote to her painting.

    asked by Anonymous
  17. Chemistry

    Consider a beaker of water that has an initial temperature of 25 degree centigrade. when an ionic salt is dissolved in the water, the temperature changes to 5 degree centigrade. 1. what would you feel if you touch the beaker. 2. is the energy of the

    asked by Nene09
  18. geometry

    Write the compound statement in symbols Let r= The food is good p= I eat too much q= I'll exercise If the food is not good, I won't eat too much.

    asked by angela
  19. Physics

    A block of mass is pulled along a rough horizontal surface by a rope as sketched in the figure below. The tension in the rope is 45 N, and the coefficient of kinetic friction between the block and the surface is

    asked by Sierra
  20. Physica

    How much work is done by a person lifting 2 Kg object from a bottom of a well at constant speed of 2 m is

    asked by Q16
  21. trigonometry

    Find the radius of a circle on which a central angle of 3 pie over 2 radians subtends an arc of 60 ft.

    asked by delwin
  22. math30

    The 1933 earthquake in Japan registered 8.9 on the Richter scale. a.The 1985 earthquake in Peru registered 7.7 on the Richter scale. How many more times intense was the earthquake in Japan? Round your answer to one decimal place. b. What would the Richter

    asked by alejandro
  23. physics

    A stone is thrown vertically upward with a speed of 15m/s.what is the acceleration of the stone in its highest point of its motion?

    asked by sushma
  24. math30

    The formula for determining the pH of a solution is pH = -log[H+], where [H+] is the hydrogen ion concentration (in M/L). What is the hydrogen ion concentration of an acid with a pH of 2.5?

    asked by alejandro
  25. physics

    You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 273 N for 7.2 s, during which time the refrigerator moves a distance of 3.4 m at constant velocity.

    asked by Sierra
  26. Physics

    A 100-g block hangs from a spring with k = 5.3 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 194 cm/s. What is the block's speed when the displacement from equilibrium is 31.5 cm?

    asked by Jay
  27. elem math core

    A bag contains one each of red, blue, green, yellow and white marbles. Give the sample space for the following experiments. A) one marble is drawn at random B) one marble is drawn, but not replaced,and then a second marble is drawn.

    asked by jordan
  28. English

    Posted by rfvv on Wednesday, July 11, 2012 at 12:16am. 1. Many artists in Degas' time thought that they could be better writers by copying famous paintings. 2. Many artists in Degas' days thought that they could be better writers by copying famous

    asked by rfvv
  29. Physica

    which of the following is correct a)the average speed of an object is the elapsed time divided by the distance traveled b)the average velocity of an object is the ratio of the distance traveled by the elapsed time. c)the instantaneous velocity is the limit

    asked by Q5
  30. Chemistry

    semibatch reaction: C6H6(l) +Cl2(g) ==> C6H5Cl(l) + HCl(g) C6H5(l) + Cl2(g) ==> C6H4Cl2(l) + HCl(g) C6H4Cl2(l) + Cl2(g) ==> C6H3Cl3(l) + HCl(g) \reactor contained 11.0 mole of benzene and a product mixture in which the amt of mono-chlorobenzene was 3x the

    asked by Simon
  31. Physics

    A crate of mass 59 kg is pushed across a level floor by a person. If the person exerts a force of 30 N in the horizontal direction and moves the crate a distance of 12 m, what is the work done by the person?

    asked by Sierra
  32. Physics

    A car of mass 1,700 kg is initially traveling at a speed of 25 m/s. The driver then accelerates to a speed of 35 m/s over a distance of 500 m. Calculate the change in the kinetic energy of the car.

    asked by Sierra
  33. Physica

    A car moving with a constant velocity. This means that the net force acting on it is

    asked by Q14
  34. Math

    a square painting is surrounded by a 2.5cm frame. if the total are of the painting plus frame is 3600 sq cm, find the dimensions of the painting. what are the dimensions? i forgot how to find the dimensions. please help me .

    asked by Maui
  35. geometry

    Determine which if any of the three statements are equivalent. Give a reason for your conclusion. 1) If the house is not white,then the house is not small. 2) If house is not white and the house is not small 3)It is false that the house is white or that

    asked by angela
  36. science

    A single mole of AgNO3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNO3 would need to be dissolved in 1 liter?

    asked by yoly
  37. Math

    The average (arithmetic mean) and median of the five numbers a,a,b,c, and c are 20 and 30, respectively. If a < b < c, what is the value of a + c?

    asked by Samantha
  38. biology

    Why is the universal genetic code considered universal?

    asked by Anonymous
  39. statistics

    The scores on a test for a very large class is normally distributed with mean 64 points and standard deviation 6 points. The department decides to award A to the highest 5% scores. What is the minimum score to receive an A for the course? Round your answer

    asked by Anonymous
  40. algebra

    mang pedring wanted to construct a square table such that the length of its side is 30 cm longer than its height. What expression represents the area of the table? Suppose the table is 90 cm high what would be the area?

    asked by Sella
  41. Physics

    A car of mass 1,700 kg is initially traveling at a speed of 25 m/s. The driver then accelerates to a speed of 35 m/s over a distance of 500 m. Calculate the change in the kinetic energy of the car.

    asked by Sierra
  42. algebra 117b

    I please need help in solving a cube surface 6x^2+108x+486

    asked by BERNIE
  43. algebra

    Suppose 3s represents an even integer. What polynomial represents the product of 3s, the even integer that comes just before 3s, and integer that comes just after 3.

    asked by Anonymous
  44. Statistics

    An instructor for a college biology lab has each of her 12 students (you are one of those 12 students) take their own SRS of 25 plants from an experimental field. She lets you know that the heights (measured in cm) of the plants in the field follow a

    asked by BadatStat
  45. physics

    If pressure is given by P=A+B by t and -c by D +v where t and v are time and velocity respectively then find dimensional formula of A, B,C&D.

    asked by niharika
  46. Math

    At a company, there are y more male employees than female employees. If there are x male employees at the company, what fraction of the employees are male, in terms of y and x?

    asked by Samantha
  47. Foreign languages

    Can you please check these sentences, Writeacher? 1) I would like to book a room with a double bed and a single bed (at a certain price) for person (sharing) which (alsoincludes breakfast and dinner for seven nights. (Can you help me express this sentence

    asked by John
  48. Mathematics

    write the following simultaneous equations in the form of AX= B where A,X and B are matrices 11x+6y=6 9x+5y=7 hence write the solution for x and y as a product of two matrices.

    asked by INDIANA
  49. TRIG

    A WORKER PRESENT SALARY IS 24 PER ANNUM HIS ANUAL INCREMENT IS 10% OF HIS BASIC SALARY WAT WUD BE HIS ANNUAL SALARY AT THE BEGINNIN OF THE THIRD YEAR

    asked by AM
  50. physics

    Find the distance by which a 43cm diameter, 8.7m tall concrete column is compressed when it supports a 12400kg load

    asked by jr
  51. Integrated Math 1

    Suppose a parabola f(x) has its vertex at (0, 25) and its zeros at x = -5 and x = 5. Then f(x)equals _____. A. 25-x^2 B. 1- 1/25 x^2 C. x^2-1 D. x^2-25

    asked by Tifini
  52. Statistics and Probability

    Drawing from a set of six blue beads and three gold beads, use ratios to state the likelihood of each color being drawn; conducts experiments to test predictions. Show your work and explain your answer.

    asked by Gabi
  53. statistics

    a random sample of 80 college students was selected to participate in a experiment. the mean of the sample is 317 points, the standard deviation of 37 there are 310 students that didn't complete the experiment 1. compute the appropriate test statistic? 2.

    asked by Anonymous
  54. math

    I am adecimal number less than 1. the digit in my hundreths place is the sum of the digits in my thousandths place. The digit in my tenths place is 1 greater than the digit in my thousandths place. Which 3 numbers could I be?

    asked by janrix
  55. Physics

    A rock of mass 0.086 kg is thrown upward with an initial speed of 13 m/s. Find the work done by gravity on the rock from the time it leaves the thrower's hand until it reaches the highest point on its trajectory. Hint: You do not have to calculate the

    asked by Sierra
  56. Business Law

    Explain how the advent of computer usage created the need for new laws to protect privacy in the United States? This is what I have so far, I am not finding much information on this other than what is in my text book. The rapid advances in technology being

    asked by Melisa
  57. Probability

    If a women with a BMI below 25 are considered to be normal weight, how many of these women would be classified as overweight? If you choose a woman at random, what is the probability that she will be overweight. Chart below BMI Frequency 15.0-19.9 9

    asked by bria
  58. trig

    determine the amplitude,period and phase shift of y=-2cos(pix-3)

    asked by Anonymous
  59. algebra

    mang pedring wanted to construct a square table such that the length of its side is 30 cm longer than its height. 1. How does the illustration look like? illustrate. 2. How would you represent the height of the table? How about the length of its side? 3.

    asked by Sella
  60. Integral math

    FOR WAT VALUE OF X IS THE TANGENT OF THE CURVE Y=X^2-4X+3 PARALLEL TO THE X AXIS

    asked by REM
  61. chemistry

    In adsorption, what is bulk concentration? How does that differ from initial concentration? Thanks in advance.

    asked by Namie
  62. algebra

    mang pedring wanted to construct a square table such that the length of its side is 30 cm longer than its height. Suppose the area of the table is 2.25m^2, what would be its height?

    asked by Sella
  63. math

    Sam can do a job in X hours. Denise can do the same job in x+2 hours. How long will it take Sam and Denise to do the job together? (Express your answer in terms of x.)

    asked by Dawn
  64. Calculus

    Find the critical numbers of y=x(4-x)^1/2. The answer is x=8/3 but I got x=7/2.

    asked by Elizabeth
  65. physics

    how many RPM are required to attain 1g with a radius of 840 feet

    asked by Edward
  66. Physica

    A box is pulled horizontally by a 60 N force at an average velocity 1.0m/s. The power is

    asked by Q15
  67. Math

    A vending machine has marbles of 4 different colors: Red, blue, purple,and yellow. The marbles are well mixed. You drop a quarter into the machine and you get 2 random marbles. Write out the sample space for the experiment. The sample space should be N =

    asked by Meredith
  68. English

    e.g. Do you want to know more about him? (What is the part of speech of 'more'? Is 'more' a noun or an adverb? 1. Do you want to know know much about him? 2. Do you want to know a lot about him? 3. Do you want to know a lot of things about him? 4. Do you

    asked by rfvv
  69. desktoping

    To make it easy to quickly return to a favorite web site you can ____ it. A: Bookmark B: Bookshelf C: Copy D: Memorize I got A.

    asked by Ciara
  70. Math

    f(x) = 1/3x + 3 and g(x) = x - 2 The functions f and g above are defined for all values of x. In the xy-plane, what is the y-coordinate of the point of intersection of the graphs of f and g?

    asked by Samantha
  71. algebra

    mang pedring wanted to construct a square table such that the length of its side is 30 cm longer than its height. How would you represent the height of the table? How about the length of its side?

    asked by Sella
  72. Integrated Math 1

    Let f(x)=x^1999 and g(x)=2x-x^5. Then f(x)g(x) equals____? A. 2x^20000-x^2004 B. 2x-x^5+x^1999 C. (2x-x^5)^1999 D. 2x^1999-x^9995

    asked by Tifini
  73. Physica

    The position of a particle is given by equation X(t)=2t^2 where t in second and X in metere. The average velocity during time interval from t=1 s to t=5 s is.......

    asked by Q2
  74. Physica

    A car moving along astraight line changes its velocity from 40 m\s to 80 m\s in a distance of 200 m . The acceleration during its motion is ...

    asked by Q3
  75. Physica

    if A=12x - 16y and B= - 24x + 10y,what is the magnitude of the vecror C=2A-B?

    asked by Q7
  76. Trigonometry

    In a right triangle with ã the right angle, b = 86.5 and c = 125.8. What is â

    asked by Cyndy
  77. Physica

    if A=12x - 16y and B= - 24x + 10y,what is the magnitude of the vecror C=2A-B? Please check out the necessity to solve them and thank

    asked by Q77
  78. math

    how do you create a function that has a graph with the given features: a. A vertical asymptote at x=2; a horizontal asymptote at y=0; no x-intercept; y-intercept is 3 please help.

    asked by ted
  79. information literacy

    which of the following is a primary source?

    asked by Anonymous
  80. math

    average speed of a car that travel 17km in 15 minutes

    asked by Anonymous
  81. English

    1. Many artists in Degas' time thought that they could be better writers by copying famous paintings. 2. Many artists in Degas' days thought that they could be better writers by copying famous paintings. 3. Many artists in Degas' times thought that they

    asked by rfvv
  82. geometry

    An army base is enclosed by a wire fence so that it forms a circular compound. The entrance to the base is located at X(3, 6) and the exit is at Y(9, 14). X and Y are end points of a diameter of the circle. A search tower is positioned at Z(2, 13) on the

    asked by Manda
  83. math

    how do you create a function that has a graph with the given features: a. A vertical asymptote at x=2; a horizontal asymptote at y=0; no x-intercept; y-intercept is 3

    asked by ted
  84. Integrated math

    wat the areb bounded by the curve y=3x^2-2x+1, the ordinates x=1 and x=3

    asked by REAL
  85. Integrated Math 1

    Let f(x)=-16x^2-x^3 and g(x)=-2-4x^2. Then f(x)-g(x) equals____? A. 1-2x^2-x^3 B. -1-2x^2+x^3 C. 1+2x^2-x^3 D. -1+2x^2+x^3

    asked by Tifini
  86. TRIG

    Given that tan¤=3/4 and ¤ is in the second quadrant find sin2¤ (¤=theta)

    asked by AL
  87. TRIG

    Given that tan¤=3/4 and ¤ is in the second quadrant find sin2¤ (¤=theta)

    asked by AL
  88. PHYICAL

    A car acceleration from rest 45 m\s in 15 s average acceleration is.....

    asked by Q1
  89. Physica

    The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above

    asked by Q9
  90. Physica

    A man of 60 kg standing on a floor at rest. The normal force exerted by the floor on the man is: A)588 N upward B) 120 N downward C) 60 N downward D) 588 N downward E) 60 N upward

    asked by Q99
  91. distance 2 cars

    if car A is going 40 mph and car B is stationary , how fast would car b have to go to cath up to car A in 4/10 of a mile

    asked by James
  92. divission

    how do i do a 7 by 10 array look like

    asked by katie
  93. criminal behavior

    an example of a crime that can be explained by social structure theories.

    asked by leo
  94. elem math core

    An unknown number of slips of paper, each with the letter C written on them, are added to the bag. After this, it is known that P(A)=¼ and P(B)= ¹/6. Find P(C).

    asked by jordan
  95. Physics

    Nothing

    asked by Sierra
  96. Reading

    when you are purchasing auto insurance, your agem sex and marital status are considered together as your. A. claims history B. ratung territory C. driving record D. Driver classification I got B but it was WRONG

    asked by help
  97. math

    how do you find the domain in 2/x^2+3? pls help

    asked by ted
  98. Math

    If it takes 6 minutes to travel from point A to point B at a constant speed of 60 miles per hour, how many minutes does it take to travel the same route from point A to point B at a constant speed of 50 miles per hour?

    asked by Samantha
  99. Physica

    IF A= 2x+3y and B=-x+y,then the angle between the resultant A+B and the positive directio of x-axis is ;.....

    asked by Q6
  100. Physica

    The sum of two vectors A and B is maximum when both vectors are : A)parallel B) opposite in direction C) perpendicular to each other D) A inclined 45 with B E) none of the above

    asked by Q8
  101. math117b

    need help in finding a cubes surface and finding the length of one side 6x^+108x+486

    asked by BERNIE
  102. Marketing

    How many unit sales and dollar sales did the Famous Amos cookies Co record for 2011. Also How many unit sales and dollar sales did Chewy Chips Ahoy! record for 2011.

    asked by Howard
  103. Managerial Economics

    Compute the economic profit of the firm if Sales-10000,material cost-3000,labour cost-2000,Administration cost-1000,own capital invested is 20000 and opportunity cost of capital 10%.

    asked by Anusha
  104. Physica

    A person wajks on astraight road for 100 m and then return back for 20 m .The ratio of the magnitude of the distance to the displacement of the person is....

    asked by Q4
  105. Math applied/pre-cal

    (-8/5)^7/4*(-8/5)^1/4=64/25 Not sure how get this answer . Could please show me the steps.

    asked by Hannah
  106. Jeans

    how much will a pair of 99 dollar miss me's be with tax?

    asked by Anonymous
  107. Math

    if (a^6 x a^6)^k = (a^3)^(k+5), solve for k

    asked by Samantha
  108. Integrated Math 1

    Let f(x)=-1-6x^2-x^3 and g(x)=-2-4x^2, then f(x)-g(x) equals___? A. 1-2x^2-x^3 B. -1-2x^2+x^3 C. 1+2x^2-x^3 D. -1+2x^2+x^3

    asked by Tifini
  109. chem

    determine milligrams of mercury in 65.60 grams of mecurous phosphate

    asked by der