# Questions Asked onJuly 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

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

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

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

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?

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

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?

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

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.

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

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.

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.

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?

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

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

16. ## english

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

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

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.

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

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

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.

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

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?

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?

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.

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?

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.

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

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

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

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?

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.

33. ## Physica

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

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 .

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

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?

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?

38. ## biology

Why is the universal genetic code considered universal?

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

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?

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.

42. ## algebra 117b

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

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.

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

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.

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?

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

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.

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

50. ## physics

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

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

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.

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.

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?

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

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

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

58. ## trig

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

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.

60. ## Integral math

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

61. ## chemistry

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

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?

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.)

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.

65. ## physics

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

66. ## Physica

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

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 =

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

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.

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?

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?

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

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.......

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 ...

75. ## Physica

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

76. ## Trigonometry

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

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

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.

79. ## information literacy

which of the following is a primary source?

80. ## math

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

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

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

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

84. ## Integrated math

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

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

86. ## TRIG

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

87. ## TRIG

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

88. ## PHYICAL

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

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

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

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

92. ## divission

how do i do a 7 by 10 array look like

93. ## criminal behavior

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

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).

95. ## Physics

Nothing

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

97. ## math

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

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?

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 ;.....

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

101. ## math117b

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

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.

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%.

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....

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.

106. ## Jeans

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

107. ## Math

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