1. Trigonometry

A carnival Ferris wheel with a radius of 7 m makes one complete revolution every 16 seconds. The bottom of the wheel is 1.5 m above the ground. The ride starts at the bottom. Find the sinusoidal function that models this Ferris wheel in terms of time (t)

2. Math

On a site plan for a new house, a water main runs along the edge of the property straight from point W(10, 34) to point M(2, 2). The water service will enter the house at point H(24, 22). The grid intervals on the plan represent 0.5m. A) At what point on

3. History

What do you think about what I wrote? Please give me feedback! And what grade would you give it? (This homework question was removed due to a copyright claim submitted by K12 Inc.) My answer: The biggest art movement that came out of World War One was the

4. Chemistry

A solution is made by dissolving 10.20 grams of glucose (C6H12O6) in 355 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m?

5. physics

What is the final tempurature when a 3.0 kg gold bar at 99C is dropped into 0.22 kg of water at 25C Specific heat of gold is 129 j/kg x C

6. math

A spotlight is attached to the ceiling 2 feet from one wall of a room and 3 feet from the wall adjacent. How many feet is it from the intersection of the two walls? a. 4 b. 5 c. 3 square root of 2 d. square root of 13 e. 2 square root of 3

7. physics-help

In the figure below, four particles are fixed along an x axis, separated by distances d = 4.00 cm. The charges are q1 = +2e, q2 = -e, q3 = +e, and q4 = +5e, with e = 1.60 × 10-19 C. What is the value of the net electrostatic force on (a) particle 1 and

8. engineering

If faucet is dripping at a rate of one drop per second and each drop contains 0.150 milliliters. Calculate how much water will be lost in 1 year.

9. Algebra

7. Marcus can paint a garage in 3 hours. Gina can paint the same garage in 2 hours. How long will it take Marcus and Gina to paint the garage if they work together

10. physycs

A hockey player skates down the ice at an angle of 34° to a line crossing the width of the rink. If he skates 14 m, how far has he travelled down the length of the ice toward the goal?

11. geometry

A rectangular box with a square base contains 24 cubic feet. if the height of the box is 18 inches, how many feet ae there in each side of the base? a. 4 b. 2 c. (2 square root of 3)/3 d. square root of 3 / 2 e. square root of 3

12. Biology

Why is the manner in which subjects are assigned to study groups important to the validity of scientific investigation?

13. Chemistry

If you had excess aluminum, how many moles of aluminum chloride could be produced from 32.0 g of chlorine gas?

14. Biology

Why is the manner in which subjects are assigned to study groups important to the validity of scientific investigation?

15. Physic 111

(1)A girl walks 10m due west and 15m due south. What is her displacement? (2)A boy walked a distance of 18m northwards, 7m eastward and 9m southward. what is her total displacement?

I'm trying to solve this problem: What sinking fund payment would be required at the end of each three-month period, at 8% interest compounded quarterly, in order to amount to 20,000. I just need to know how to work the problem correctly.

17. chemistry

A solution of AgNO3 (1 x 10-6 molar) is prepared. To this is added K2CrO4 until precipitation of Ag2CrO4 begins. The Ksp of Ag2 CrO4 is 9 X 10-12. Addition of NaCl will bring about:

18. physics

Two point charges of 48 nC and -45 nC are held fixed on an x axis, at the origin and at x = 77 cm, respectively. A particle with a charge of 69 μC is released from rest at x = 49 cm. If the initial acceleration of the particle has a magnitude of 123

an arrangement of four charged particles, with angle θ = 34.0 ˚ and distance d = 1.50 cm. Particle 2 has charge q2 = 8.00 × 10-19 C; particles 3 and 4 have charges q3 = q4 = -1.60 × 10-19 C. What is the distance D between the origin and particle 2 if

20. Chemistry

NH4HS(s )NH3(g)+ H2S(g) ∆H = +93 kilojoues The equilibrium,above is established by placing solid NH4HS in an evacuated container at 25degreesC. At equilibrium, some solid NH4HS remains in the container. Predict and explain the following. The effect on

21. Biology

Im doing an experiment in Biology on a drug, but im not sure where I can find information on the drug Chantix. i also have a few general questions I was hoping you could help me with... 1. Why is it improtant to have as many subjects as possible in an

22. To heather =(

Your post has been removed. We do not have access to any school's materials or exams. Even if we did, we certainly would NOT post the answers. You are no credit to Penn Foster! Check these sites for Penn-Foster's cheating policies.

23. Chemistry

A solution is made by dissolving 3.5 moles of sodium chloride (NaCl) in 155 grams of water. If the molal boiling point constant for water (Kb) is 0.51 °C/m, what would be the boiling point of this solution?

24. Trigonometry

Using the same equation from problem 1, what is the average temperature in Atlanta, GA, for the month of June? equation from #1 is y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1.

25. Math/Trig

The following is a table for the maximum temperature per month, for Boulder, CO Month|° F Jan:45.1 Feb:48.2 Mar:53.8 Apr:62.8 June:71.6 July:81.5 Aug:85.1 Sept:76.6 Oct:66.7 Nov:52.9 Dec45.5 Find the sinusoidal function that models this data. How do I do

26. Keyboarding and Wor Processing

When you're setting up to type on the keyboard, you should position your fingers over the

27. Math/Trig

Find the angular velocity of an object, rotating on a circular object, moving through 9.7 revolutions in 11 seconds. Express your answer in rad/sec and round your answer to the nearest tenth.

28. Physics

Some how TRAIN A travelling at 36 m/s, is accidentally sidetracked onto the train track for TRAIN A. The TRAIN A engineer spots TRAIN A 100 m ahead on the same track and travelling in the same direction. The engineer jams on the brakes and slows TRAIN B at

29. World History

Explain how totalitarian rulers were able to acquire power during the 1930s. Describe at least two specific totalitarian leaders, the conditions in their countries that played a part in their rise to power, and the way they used those conditions to gain

30. Math/Trig

The average temperature, in °F, for Atlanta, GA is modeled by the sinusoidal function y = 18.25 sin(pi/6 t - 2.09) + 61.15 where t is the time in months and January is t = 1. What is the average temperature for the month of February? How do I do this

31. Math

The distance between the point in my center and any point on my outline is equal. What am I? a.Triangle b.Octagon c.Circle d.Square

32. Physics

In a historical movie, two knights on horseback start from rest 64 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.21 m/s2, while Sir Alfred's has a magnitude of 0.31 m/s2. Relative to Sir George's

33. Algebra

How many pounds of apples costing .64 per pound must be added to 30 pounds of apples costing .49 per pound to create a mixture that would cost .58 per pround

34. English

Please give me some suggestions on how I can improve this. Thanks. Why I agree with students staying home from school during cold weather in Vietnam. Imagine putting on wet clothes and facing a cold wind. This is what winter feels like in Hanoi, Vietnam.

35. English

I have a few doubts on a few things. I hope you can check them for me. 1) I had a cavity in my first molar. So I made an appointment with the dentist. I went to the dentist (dentist's) and he devitalized my tooth. 2) The filling came out of my tooth and I

Determine the zeros of the function 7x^2 + 9x = 0 answers were: {-9/7} {-9/7,0} {o,9/7} {9/7} I think the answer is {-9/7,0} but I'm not positive when I worked it-If this is wrong please steer me into the correct calcs because then I don't what I'm doing

37. algebra

Find the number of degrees in the measure of one of the base angles of an isosceles triangle, if the measure of the vertex angle is 36 degrees less than the sum of the measures of the base angles.

38. Algebra

A spherical scoop of vanilla icecream with radius of 2 inches is dropped onto the surface of a dish of hot chocolate sauce. As it melts, the icecream spreads out uniformly forming a cylindrical region 8 inches in radius. Assuming the density of the

39. Education

What was the impact of the No Child Left Behind positve and negative

40. English

I forgot to include these sentences. Thank you. 1) I had an X-ray on my ankle. My ankle was X-rayed. The X-rays showed that my ankle was broken. I had a magnetic resonance imaging on my leg (I don't know how to express it). 2) People accused of witchcraft

41. Art Appreciation

How you feel the form of the sculptures expresses the content. And what is visual elements and principles design

42. algebra

factor. x^2-x-6=? and x^2-5x-24=?.... i don't understand how u could factor these??

43. Trigonometry

The diagram below shows a mass, a spring, and a near-frictionless surface. If you pull the mass back 10 cm and then release it, the mass starts to oscillate. The distance of the mass from the wall is modeled by the equation y = 3sin(4pi t + pi/2) + 7 cm,

44. physics

The velocity of a diver just before hitting the water is -8.4 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 0.82 s of the dive? This problem with different numbers has been done on here

45. Algebra

Michelle sold tickets for the basketball game. Each adult ticket costs 3\$ and each student ticket costs 1.50. There were 105 tickets sold for a total of 250\$. How many of each type of ticket were sold?

47. College Algebra

f(x)=3.1ã(x+19 1.Decribe the graph be obtained using transformations of the square root function. First, vertically stretch the graph of f (x) = by the factor 3.1; then shift the results up 19 units. 2.Determine how to tell the model describes the

48. english

Using Possessives:these are three examples of possessive sentences. 1. This women's identity was stolen because her personal financial information was not safe. 2. She was unable to get a car loan with her bad credit. 3. Finally she filed to bankruptcy to

49. Analytic Geometry

Find the equation of a locus of a point which moves so that the sum of its distance from (2,0)and (-2,0) is 8. it is about equation of a locus.. please help!!

50. math, thanx!

Describe in your own words how to solve a linear equation using the equality properties. Demonstrate the process with an example. Next, replace the equal sign in your example with an inequality by using the less than or greater than sign. Then solve the

51. physics

If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r 2

52. Algebra-Please check _i forgot a point last night

Equation of line with slope m = -3 and including point (5,5) is y = - 3x+20 I think its true when I worked it out I figured out the slope and put in the points y-5 = - 3(x-5) y = -3x + 15 y = -3x + 15 + 5 y = -3x + 20

53. b iology

How do the cellular processes and cellular products of asexual and sexual reproduction compare?

54. visual

Where did Harem Steenwyck paint Human Life?

55. Vocabulary

Write a sentence using the vocabulary. Do these sound ok? abate- The air traffic controller told the impatient pilot to wait until the thunderstorm had abated before landing. abjure- Before marrying a member of the Roman Catholic church, one must abjure

56. english

Write three sentences using plurals correctly and three sentences using possessives correctly on the topic of how to store personal financial information effectively and efficiently.

57. algebra

The overnight low temperature was -5 centigrade. If the temperature rose 18 degrees during the following day, what was the number of degrees centigrade in that day's high temperature?

58. math

jamie wants to be able to find the simplest form for any fraction by using the division rule and dividing only once . what should she do

59. precalc

f(x)=Log1/3^(9x)find the domain and range.

60. Algebra

x = adult tkts y = student tkts 3x = value of adult tkts 1.5y = value of student tkts x + y = 105 3x + 1.5y = 250

61. Algebra

x = adult tkts y = student tkts 3x = value of adult tkts 1.5y = value of student tkts x + y = 105 3x + 1.5y = 250

62. Spanish

These are Really Confusing: ¿Qué enciendes cuando tienes calor? ¿Qué apagas cuando tienes frío? ¿Qué usas en tu cama cuando hace frío? ¿Dónde están las cosas muy frías en tu cocina? ¿Dónde está tu ropa? ¿Qué hay en las ventanas? ¿Dónde

63. organic chemistry

calculate the mass in grams of 10.0ml if mercury (Hg) is the density Hg 13.6g/ml

65. Analytic Geometry

write the equation of a line through (4,1) and: A. parallel B. perpendicular to the line through (7,3) and (5,-1). =Express the equation in 5 different forms. please help!!

66. English

I have a few more doubts on these sentences. Thank you for your help. 1)The bus, by which I usually come to school, was late this morning. 2)The briefcase, which you put on the book-shelf, is Peter's. 3)You'd better/should (put)/If I were you (in your

67. geometry

If AB = 6, ST = 8, AC = 12, A = 40°, T = 20°, then what does BC = ? = ?

68. geometry

What is the length of the side opposite to a 30 degree angle if it is 12 units less than the hypotenuse of the triangle?

69. psychology

A histogram shows that the mean of rain in your area has increased over the last five years. What is the probability that the mean will be higher this year than in the previous five years?

70. Math/Trig

Find the area of a sector of a circle with a radius of 3 m and a central angle of 125degrees.

71. Math/Trigonometry

What is the angular displacement of 1.6 revolutions? Round to the nearest tenth.

72. Math/Trig

Find the linear velocity of an object, 3 cm away from the center, rotating on a circular object with an angular velocity of 0.56 rad/sec. Round your answer to the nearest tenth.

73. language arts

i cant find the definition of the word cautious. i tried that dictionary website and it didn't help. please help!

74. english

What does modesty mean?

75. physics

if a ball is thrown vertically upward and is caught 5 seconds,how fast must have been going when it left the person s hand?help

76. algebra

write the verbal sentence as an inequality and solve the inequality. (this has to do with absolute value inequalities) the distance between x and 8 is less than 14

77. science

which of the following are involved in the clotting process.

78. algebra

Simplify: (negative 7 minus negative 7)-(negative 7 minus 7squared).

79. Geometry

Paul claims, "the probalbility of rolling a sum of 6 when you roll two dice is 1/11, because two dice have sums 2 through 12 which means there are 11 possible sums. "how do you respond?

80. Geometry

Robert says that if you toss three coins you get 3 H (3 Heads),2 H ( 2 heads), 1 H(1 Head), or oH(o Heads), so the probabliity of getting three heads is 1/4. How do you respond?

81. Spanish crossword

in _________, school begins around March 1 and ends in December (2 words)

82. acounting

TEST XQ's Software Development Division (SDD) has developed several architectural design software packages. One software package that they have developed is being sold to English Company for \$250,000 or 325,000 pounds. The cost of developing the software

I need to factor = 16s^6-2f^6 My answer is 2(s-8)

84. mgt

How is her view of leadership and power consistent with the Dynamic Interdependent Approach to power?

85. health

What are the active ingredients in heroin? (What causes people to abuse it?)

86. algebra

x^2+22x+72= (x*4)(x*18)... just checking if this is right?

87. Bio 102

Does animal growth is determinate, and how dis can be done.

88. computer science

Q1)18 MB of data are to be transmitted over a 4 megabits per second connection. How long should the complete transmission take, to the nearest 0.1 s? Q2)A 50MB file is compressed using a compression ratio of 10. What is the compressed file size?

89. Behaviors in Organizations

How can you encourage/promote and discourage member's acceptance of proposals in the workplace?

90. english

Write three sentences using plurals correctly and three sentences using possessives correctly on the topic of how to store personal financial information effectively and efficiently. using plurals here are my three sentences. 1.to store financial papers,

Research the Goldman Sachs website. Using your research findings from the Library and the Internet, develop both an EFAS (External Factors Analysis Summary) table and an IFAS (Internal Factors Analysis Summary) table. The tables are to be submitted in one

92. world history

why did king Louis XV want complete power and control? and how would you persuade him?

93. english

Write three sentences using plurals correctly and three sentences using possessives correctly on the topic of how to store personal financial information effectively and efficiently. using plurals here are my three sentences. 1.to store financial papers,

94. algebra

Sally works at a grocery store. In one week she earned \$390 for working 47 hours, of which 7 hours were overtime. The next week she earned \$416 for working 50 hours, of which 8 hours were overtime. What is Sally's hourly overtime rate in dollars per hour?

95. algebra

Given triangle XYZ with vertices X(-2,0),Y(6,0), and Z(4,8), find the number of square units in its area.

96. english

When you are using possessives here are three examples. are theses any better? 1. Bill’s failure to keep proper records may land him in hot water with the IRS. 2. To keep from getting lost the best way to store Bill’s records is digitally. 3. Using

97. geometry

Find the number of degrees in the measure of one of the base angles of an isosceles triangle, if the measure of the vertex angle is 36 degrees less than the sum of the measures of the base angles.

98. english

i've to write paragraph on birthdays.main idea is birthdays are fun.

99. symbols

there are 53 cows... and 4 men who milk the cow each day...does each person milk the same number of cows?

How do you determine the density of 22 ml of a blue liquid that has a mass of 51.1g

101. economics

Karen can make 15 wristbands and only three pot holders in one hour. Anna can make 12 wristbands but 2 potholders in one hour. What is the opportunity cost of a pot holder? Who has a comparative advantage in the production of pot holders?

102. organic chemistry

why ethanol is in liquid state while propane is in gas state although both have same molecular masses?

The GDP of Company E was \$500 million in 1995. The population was 1 million, so the average income was \$500. As a result of economic growth, GDP in 2005 was \$1,500 million. The population was already 2 million. What was the average income in 2005. I'm

104. math

I need a graph for y = 3 - 4cos pi/5(x - 1)

105. IT

On an optical disc is an extended pit interpreted as as a series of 0 `s I think it is am I right ? Thanks

106. writing

a sea side sean

107. english

Review the passage below, which contains 20 errors. Identify these errors by marking each of the errors in bold, and make your correction in parentheses after the error. Example: My cars interior is black. This must be marked as follows: My cars (car’s)