# Questions Asked onSeptember 1, 2013

1. ## physics

A staging that weighs Wstaging supports a painter weighing 620 N. The reading on the left scale is 660 N and the reading on the right scale is 410 N. What is the weight of the staging? Answer in units of N

2. ## chemistry

how many grams of oxygen are required to burn completely 570g of octane?

3. ## Chemistry

the mass of cylinder one is 1.35 times the mass of cylinder two, and the volume of cylinder one is 0.792 times the volume of cylinder two. If the density of cylinder one is 2.70 g/cm3 what is the density of cylinder two? THIS QUESTION HAS ME GOING CRAZY!!

4. ## physics

A bus accelerates from rest at 1.5m/s^2 for 12s. It then travels for 25s after which it slows to a stop with an acceleration of magnitude 1.5m/s^2. (a) Find the total distance the bus travels And its average velocity of the trip.

5. ## college algebra

How many feet does a wheel with a diameter of 20 inches travel after five revolutions?

I need help I am not sure how to revise these sentences without leaving out or leaving in to much information if someone would please help me. Revising Messages: Directness and Conciseness Revise the following short e-mail messages so that they are more

7. ## chemistry

A thief uses a can of sand to replace a solid gold cylinder that sits on a weight-sensitive, alarmed pedestal. The can of sand and the gold cylinder have exactly the same dimensions (length = 23cm and radius = 3.9cm ).

8. ## geometry

The face-off areas in ice hockey have a diameter of 29.9 feet. Find the area of a face-off circle. Use 3.1.4. for pi. Round to the nearest tenth if necessary.

9. ## maths

Calculate the arc length that subtends an angle of 55 degree at the centre of a circle with radius r = 5cm.

10. ## physics

A ladder 7.65 m long leans against the side of a building. If the ladder is inclined at an angle of 72.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?

11. ## science

If a 250.0 mL sealed plastic bag starts out at a temperature of 19.0 °C and after sitting in the sun reaches a temperature of 60.0 °C, what will the new volume of the bag be? Assume the pressure inside the bag remains constant.

12. ## Algebra 1

How do you solve sentence problems

13. ## algebra

What is the simplified expression for this: Area of a triangle with the base 1/2y and the height 2/5y+4

14. ## pHysics !!

A 20-g bullet is fired horizontally into a 980 g block of wood suspended by a long cord. The bullet sticks in the block and causes the block to swing 15 cm above its initial level. a) What is the momentum of the bullet before it hit the block? b) Determine

15. ## physics

Find the horizontal and vertical components of the d = 140 m displacement of a superhero who flies from the top of a tall building following the path shown in Fig. P3.18 where θ = 28.0°.

16. ## Math

Find the original price for a kitchen table and chairs selling for \$799.99 at 40% off. Round to the nearest dollar

17. ## algebra

The temperature on a summer day is 77 degrees Fahrenheit. The formula to covert temperature to degrees Celsius is C = 5/9(F-32). What is the corresponding temperature in degrees Celsius?

18. ## Introduction to Physics

What is the electric charge on the calcium ion in calcium chloride, CaCl2?

19. ## math

a doctor orders a dosage of 10 mL of medicine every 6 hours for 1 week. How many fluid ounces of medicine should be purchased? Round up to the next whole fluid ounce.

20. ## chemistry

Calculate the amount of heat required to completely sublime 76.0g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol.

21. ## Information Literacy

Which of the following is an example of a primary source? A: Diaries and letters from the 1880s published in a recent book of collected diaries and letters from the 1880s B: an encyclopedia article citing events from the 1880s and giving a list of works

22. ## maths

Find the two stationary points on the curve when y = 2x/x^2 + 1

23. ## maths

Find the line that is perpendicular to y = -3/4 x + 2 and passes through (3,4).

24. ## maths

Does the parabola y = -3x^2 + 2x - 1 have a maximum or minimum value?

25. ## math

Steve and Peggy want to rent a 40 foot by 25 foot tent for their backyard to host a barbecue. The base of the tent is supported 7 feet above the ground by poles and then roped stakes are used for support. The ropes make a 60 degree angle with the ground.

26. ## Physics

A woman on a bridge 91.1 m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 8.20 m more to travel before passing under the bridge. The stone

27. ## math

Express the fractoin 17/20 as a decimal and as a percent

28. ## Geometry

An antique dealer visited three shops. She spent \$25 at the first shop. At the second shop, she spent half of her remaining money and had \$60 left. How much money did the dealer have originally.

29. ## physics

Chinook salmon are able to move through water especially fast by jumping out of the water periodically. This behavior is called porpoising. Suppose a salmon swimming in still water jumps out of the water with velocity 6.41 m/s at 44.1° above the

30. ## English

Does censorship stop good things from coming to their society?

31. ## English

Fill in the black...I can't think of any words. It has to contain one of these stems: clin pon pos hyper therm com im dis de The sentence: A hyper child might have trouble sitting still, and a(n) ------------ judge might upset the contestants of a singing

32. ## MATH

A LADDER IS LEANING AGAINST THE WALL. IF THE LADDER REACHES A HEIGHT OF 12M UP THE WALL AND HAS ITS FOOT 5M AWAY FROM IT ,CULCULATE THE LENGTH OF THE LADDER?

33. ## English

How does a poet use literary devices to convey a theme?

34. ## English

Does censorship stop good things from coming to their society? More Details: Any society. I need to draw a political cartoon or Fahrenheit 451 and I was thinking about doing something with someone blocking good tings from coming in. Would it work?

35. ## MATH

A LADDER IS LEANING AGAINST THE WALL. IF THE LADDER REACHES A HEIGHT OF 12M UP THE WALL AND HAS ITS FOOT 5M AWAY FROM IT ,CULCULATE THE LENGTH OF THE LADDER?

36. ## Spanish

How would you say iPod in Spanish? Would you simply say iPod or would it be better to use electronic device?

37. ## Chemistry

If lava can flow 1.5 km in 45 minutes, how do I figure how long it takes to go 5.0 km. It traveled 33 m per minute.

38. ## computers

Duane will use an open system LAN because he knows the open system will support varieties of hardware and software components made by different vendors. Steve will use a closed system LAN because he knows the closed system is favored by network

39. ## SAT Writing

Writeacher! Please correct, give feedback, and grade. Prompt: "I don't know the key to success,but the key to failure is to try to please everyone." Assignment: Is trying to please people a way to achieve success or a route to failure? Essay: " I don't

40. ## chemistry

A block of metal has a width of 3.2 cm, a length of 17.1 cm, and height of 3.9cm . Its mass is 1.3kg . Calculate the density of the metal.

41. ## algebra

the product of the square of a number and 8? fifteen less than the sube of a number? thanks!

42. ## College

How can I earn a fullride scholarship?

43. ## Algebra

I am completely lost...please anyone can anyone help? x = 2+y x and 2 are in inches then it says solution y=x(in) - a(in)

44. ## Inverse/Direct Variation

Is this an example of inverse variation, direct variation, or neither? Because, on average, Linda makes 60% of the free throws she shoots in a basketball game, the number of points she scores on free throws depends on the number of shots she gets.

when proiritzing your study period, the best strategy is to?

46. ## Math

Can someone check my work? the problem is: x=2+3/y and I have to solve for y I get rid of the denominator y and multiply it with X...so it looks like xy=5 then just divide by x on both sides for a final answer of y=5/x

47. ## algebra

name the polynomial and give its degree. 7x3+6x2-2=

48. ## Carr Middle School

Math 601 divide by 57. I need to show all the work for this long division problem.

49. ## HISTORY

In the new cities of the 1800s, streetcars were to the suburbs and residential neighborhoods as glass and steel were to

50. ## geometry

round to the nearest tenth. a rectangular plot of land is 80 meters wide and 98 meters long. Find the length of the diagonal and if necessary, round to the nearest tenth.

51. ## geometry

a 27 feet tall ladder is placed so that it reaches 25 feet up on the wall of the house. How far is the base of the ladder from the wall of the house. Please help.

52. ## programming

DEBUGGING // The two senior class homerooms at Littleville High School // are having a fundraising drive for the prom. Each time a student // solicits a contribution, a record is created with the // student's name and the value. Two files have been created

53. ## MATH

SUPPOSE A BEAD MAKER WANTS TO SEPARATE 10,000,000 BEADS INTO BOXES.SHE WILL PUT 100,000 BEADS INTO EACH BOX WOULD SHE PUT THE 4,358,216TH BEAD?

54. ## Math

If a car is traveling at 60 mph how long would it take to slow to 30 if slammed on the brakes?

55. ## math

a drapery panel measures 6 feet by 10 feet. Find how many square feet of material are needed for eight panels?

56. ## math

Find opxthe volume of a rectangular box 9 feet by 7.1 feet by 7 feet.

57. ## physics

You are driving a car 35mi/h down the road. The stoplight in front of you suddenly turns red and you slam on the brakes, skidding to a halt. You get out of the car and measure the skid marks made by your tires to be 28.5m meters. (Assume positive x to be

58. ## US History

What is the Puritan concept of "calling" and how does it relate to the Puritan beliefs? Thanks for you help :)

[(x-4)+y]^2

60. ## Algebra 2

I need to find x of the quadratic function y=-3/4x^2-4x-1 and keep getting (4)/(3/2). Is this right and if so, can it be reduced?

61. ## physic 2a

A car accelerates uniformly from rest to a speed of 55.0 mi/h in 11.0 s.

The assignment: Create a matrix between the pluralistic and elitist perspective. When differentiating between the two perspectives, provide examples of each perspective. Identify instances of who might fill these roles. I need help with terminology to

63. ## Algebra 2

I need to find x of the quadratic function y=-3/4x^2-4x-1 and keep getting (4)/(3/2). Is this right and if so, can it be reduced?

I need to find x of the quadratic function y=-3/4x^2-4x-1 and keep getting (4)/(3/2). Is this right and if so, can it be reduced?

65. ## psychology

Did I cite the start my source correctely according to APA format. The source did not have a date or an author listed. WebMD (n.d.) Attention Deficit Hyperactivity Disorder: What Is ADHD?

66. ## trigonometry

the bases of a trapezoid are 22 and 12 respectively. The angles at the extremities of one base are 65^ and 40^ respectively. Find the two legs

67. ## psychology

Is this a scholarly website it is called WebMD? I am writing a paper on Attention Deficit Hyperactivity Disorder: What Is ADHD?

68. ## statistics

7) A final exam in Statistics has a mean of 73 with a standard deviation of 7.73. Assume that a random sample of 24 students is selected and the mean test score of the sample is computed. What percentage of sample means are less than 70?

69. ## accounting-income tax

During the current year, Deborah Baronne, a single individual, paid the following amounts: Federal income tax \$10,000 State income tax \$4,000 Real estate taxes on land \$1,400 State sales tax \$2,000

70. ## maths

A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the centre. How is r the radius given?

71. ## maths

A circle x^2 + y^ + 2x - 2y -1 = 0 expressed in the following form (x-h)^2 + (y-k)^2 = r^2 where h, k are the coordinates of the centre. How is r the radius given?

72. ## maths

Sine and Cosine rule are both used in solving trigonometry problems.Give an example of when the cosine rule is more appliciable than the sine rule?

73. ## Maths

Find dy/dx if y = 1/8.

74. ## maths

The length of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. Find the simplest expression for the perimeter if the width is x.

75. ## maths

The relationship between the vertical height and the horizontal distance of a ball thrown at 45 degree is given by the equation y = x - x^2/50, where y is the vertical height and x is the horizontal distance. (a) Find the maximum vertical height reached.

76. ## science

An 0.804 mol sample of hydrogen gas at a temperature of 16.0 oC is found to occupy a volume of 29.2 liters. The pressure of this gas sample is mm Hg.

77. ## science

An 0.804 mol sample of hydrogen gas at a temperature of 16.0 oC is found to occupy a volume of 29.2 liters. The pressure of this gas sample is mm Hg.

78. ## MATH I NEED HELP PLEASE

1. The range of f ( x ) = ax + b is the set of all real numbers given that a and b are real numbers. Which produces a counter examples to her statement ? A. a = 0 B. b = 0 C. a < 0 D. b < 0 My answer I came up with was b or c I was not sure. 2. f ( x ) = -

79. ## To rockrboiluvr14 - 8th grade language arts

Posted by rockrboiluvr14 on Saturday, August 31, 2013 at 11:29pm. Internal conflict occurs when a force within the character is against him/her. If someone is possessed by a ghost, would it be considered external or internal conflict. I still say external