# lizzy

Most popular questions and responses by lizzy
1. ## chemistry

A chemist must dilute 55.6 ml of 1.48 M aqueous silver nitrate (AgNO3) solution until the concentration falls to 1.00M. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in

2. ## algebra with pizzazzi

Do Elephants know how to gamble

3. ## Statistics - Help!!!

An independent measures research study compares three treatment conditions using a sample of n=5 in each treatment. For this study, the three samples have SS1=10, SS2=20, SS3= 15. What value would be obtained for MS within?

4. ## statistics

A research study comparing three treatments with n=5 in each treatment produces T1=5, T2=10, T3=15 with SS1=6, SS2=9, SS3=9 and (Greek letter E)X squared =94. What is SS total? What is SS between and what is SS within?

5. ## physics

Two blocks of masses m1 and m2 approach each other on a horizontal table with the same constant speed, v0, as measured by a laboratory observer. The blocks undergo a perfectly elastic collision, and it is observed that m1 stops but m2 moves opposite its

6. ## Physics

A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65. Determine the force of static friction if the block remains stationary.

7. ## History

1.Which of these was a precedent that George Washington set? A. constitutional amendment process B.formal presidential dinners C.singing of the national anthem D.use of a presidential cabinet 2.“The time for a new election of a citizen be president of

8. ## Pre calc

Let sin u=-8/17 and cos v= 12/13, with pie

9. ## Elementary Statistics

The diameters of pencils produced by a certain machine are normally distributed with a mean of 0.39 inches and a standard deviation of 0.04 inches. If 500 pencils are selected how many would you expect to have a diameter more than 0.33 inches?

10. ## Math Statistics

In the power ball lottery game, winning the jackpot requires that you select the correct five unique numbers between 1 and 58 inclusive (don't have to match the order) and, in a separate drawing, you must also select the correct single nber between 1 and

11. ## Elementary statistics

Scores on an English test are normally distributed with a mean of 78% and a standard deviation of 4.5%. Find the value of the first quartile.

13. ## Calculus

A particle moves along the curve y = sqr(1+x^3). As it reaches the point (2,3), the y-coordinate is increasing at a rate of 4 cm/s. How fast is the x-coordinate of the point changing at that instant.

14. ## Math

a grocery clerk nstacks three rows of can of fruit for a display, each of the top two rows has 2 fewer cans than the row beneath it, there are 30 cans altogether, how many cans are in each row?

15. ## maths

A plane takes off from Lagos at 10.30a.m. it flies to Accra in 65 mins, makes a stop of 40 mins at Accra airport. And then flies back. To Lagos in 70 mins. At What time does it land again At Lagos airport

16. ## Chemistry

HELP! I need to know if I am getting the right equation for the oxidation reaction of cyclohexene and potassium permanganate? I think it would be: C6H10+KMNO4 would become C6H10(OH) + MNO2 + K

17. ## Identities

Verify the following identity cos2x/sin2x+sinx/cosx=csc2x

18. ## social studies

Referencing Vladimir Lenin, "What is To Be Done?" (1902) Why do you think it was left to the “bourgeois intelligentsia” to transform the quest for working class rights into a philosophy?

19. ## College Physics

At t=0 the current to a dc electric motor is reversed, resulting in an angular displacement of the motor shaft given by theta(t)= 258t - 20.4t^2 - 1.47t^3 How many revolutions does the motor shaft turn through between the time when the current is reversed

20. ## life Orientation

Identify your 3 human rights violations or discriminations and explain in an lntroductory paragraph why you choose the specific human rights violation or discrimination.

21. ## Further mathematics

An exponential sequence (GP)of positive terms and a linear sequence (AP)have the same first term.the sum of their first terms is 3,the sum of their second terms is 3 and the sum of their third terms is 6. Find the sum of their fifth terms

22. ## math

Test these conjectures. Give three examples. Explain if the conjecture is correct or incorrect. 1. If a number is divisible by 4, it is always an even number._________________________________ 2. All multiples of 5 have a 5 in the ones

23. ## history

which of the following was not a new weapon or method of warfare in world war 1?

24. ## physics

For the step ladder shown in the Figure, sides and are each ft long and hinged at . is a -ft long tie rod, installed halfway up the ladder. A -kg man climbs ft along the ladder. Assuming that the floor is frictionless and neglecting the weight of the

25. ## Statistics

As the sample size gets larger, what happens to the size of the correlation that is needed for significance?

26. ## chemistry

A 150-mL sample of a .600-mol/L calcium nitrate solution is mixed with a 1.00L of .500-mol/L NaOH(aq). Calculate the mass of precipitate produced in this reacton.

27. ## Phys

The masses and coordinates of three spheres are as follows: 18 kg, x = 1.50 m, y = 1.50 m; 40 kg, x = -1.50 m, y = -1.50 m; 64 kg, x = 0.00 m, y= -0.25 m. What is the magnitude of the gravitational force on a 14 kg sphere located at the origin due to the

28. ## Chemistry

If the distance from the Earth to the moon is 3.84 x 105 km. How long would it take a radio wave with wavelength 413.8 m to travel from Earth to the moon? C=(lanbda)v & E=(h)v

29. ## math

what is the theme of the story the Christmas goblin by Charles Dickens?

30. ## Honors Math

Please help! Malia incorrectly graph the equation y=2/3x+12 with a slope of 3/2. What should malia's corrected graph look like? The answers can be: A. Vertical B. Horizontal C. Less Steep D. More Steep P.S. The / doesn't mean divide in this equation. It is

31. ## Algebra

Find two positive real numbers that differ by 1 and have a product of 1.

32. ## Statistics

A survey of 925 voters in one state reveals that 408 favor approval of an issue before the legislature. Construct the 90% confidence interval for the true population of all voters in the state who favor approval.

33. ## Math

Please help! It says- A machine takes 4.0 hours to make 8 parts. At that rate, how many parts can the machine make in 31.0 hours? Anybody want to explain it to me?

34. ## Calculus - free body diagram

A water tank has the shape of an inverted right circular cone whose base radius is equal to half its height. Water is being pumped in at 2 cubic meters per second. How fast is the water rising when the water is 3 meters deep?

35. ## Physical Science

1. In which of the following units is acceleration expressed? *A. Newtons B. Foot-pounds C. Kilograms D. Meters per second squared 2. A stone falls from a ledge and takes 16 seconds to hit the ground. The stone has an original velocity of 0 m/s. How tall

36. ## physics/chem

what is the relationship between density and specific heat capacity? and why? i thought when density increase specific heat increase but it says that it is inversely proportional. thank you

37. ## college, Microeconomics

(Daddy Warbucks employs workers in his perfectly competitive factory. Mr. Smith employs workers in his monopolistic factory as the only producer of the thing you really want. Given the following information, determine how many workers each firm will

38. ## physics

0.155 kg of water at 86.0oC is poured into an insulated cup containing 0.224 kg of ice initially at 0oC. How many kg of liquid will there be when the system reaches thermal equilibrium?

39. ## Math statistics

For a certain computer program a password must be exactly 5 characters long. The first character must be a mnber 0-8, the second, third and fourth character can either be one of the 26 letters or a number 0-5, the fifth character has to be exactly the same

40. ## physics

In a certain experiment, it is necessary to be able to move a small radioactive source at selected, extremely slow speeds. This is accomplished by fastening the source to one end of an aluminum rod and heating the central section of the rod in a controlled

41. ## Math - Algebra

A banker invested money in two investments. The first investment returned 4% simple interest. The second investment returned 12% simple interest. If the second investment had \$260.00 more money than the first, and the total interest for both investments

42. ## social studies

In referrencing Lenin's "What is To Be Done" Lenin is here calling for unity among socialist thinkers, emphasizing that criticisms made by socialist thinkers against one another’s thoughts strengthen the enemy (bourgeois ideology”). Put in other words,

43. ## chemistry

how many iron atoms are in 0.550 mol of Fe2O3?

44. ## AP Chem

what is the hybridization of ClF3? and BrF3

45. ## physics

using well labelled diagrams,briefly describe how you would determine the density of an irregular object

46. ## physics

an object travelling at 10m/s accelerates at 4m/s2 for 8 seconds.what is the final velocity and how far does it travel during the 8 seconds

47. ## history

How many words can you make with the letters from the word Constitution?

48. ## math

In 1 through 6, find each sum. Simplify, if possible. Estimate for reasonableness. 1. 7 __2 3 + 8 __5 6 2. 4 __3 4 + 2 __2 5 3. 11 ___9 10 + 3 ___1 20 4. 7 __6 7 + 5 __2 7 5. 5 __8 9 + 3 __1 2 6. 21 ___ 11 12 + 17 __2 3 7. Number Sense Write two mixed

49. ## Statistics

A friend gives you the following Fs and decision made. Does the decision appear to be correct? Explain.Do NOT provide critical or table values as explanations. F(2, 63) = .10, not significant F(3, 85) = -1.70, not significant F(1, 120) = 64.32, not

50. ## Calculus

For the curve r = 2 sin 3(theta): Find the arc length of one petal

51. ## Science

Express the following in scientific notation 1) 547 000.0 2) 0.000000049704

52. ## Math

A donkey and a mule were carrying sacks of apples. The donkey groaned so the mule said to him: "Why are you complaining? If you gave me one sack, I would have twice as many as you; if I gave you one of my sacks, then we would have equal loads." How many

53. ## Math statistics

A mountain search and rescue team received an average of 600 calls per year. Use the poisson dustribution to find the probability that on a randomly selected day, they will receive 1 or more calls.

54. ## Math

How do I write an equation or an inequality for this: the product of a number z and 12 is 60

55. ## Biology

What are code pieces of nucleic acids? (this is for a crossword puzzle and strangely polypeptides does not fit!) the spaces are: _ _ _ _ e _ _ _ _ _ _ What are the varients of a gene? (it's not diversity like I thought it should be) the spaces are _ i _ _

56. ## Chemistry

Outline a suitable procedure for separating a mixture of sulphur and sand.

57. ## maths

how fast does a child`s heart beat in a minute?

58. ## Physics

A 2kg block is in equilibrium on an incline of 60 degrees. find fn of the incline on the block

59. ## Math

Harry went to collect eggs from four chicken coops. At the first coop he collected the eggs and put them in the basket.at the next coop,he doubled what he had.At the third coop, he collected 6 more but dropped and broke two on his way to the fourth coop.

60. ## chemistry

Chemical reaction formulas of: 1.)Fe + H2SO4 2.)FeS + H2SO4 3.)CS2 + S

Can I be an accountant with these subjects

62. ## Math statistics

Ten percent of Americans adults are left-handed. A statistics class has 50 students in attendance. Find the standard deviation for the number of left-handed students in such classes of 50 students

63. ## Math HELP!! :(

a contractor's designing one side of an office building 48 feet in length the windows are each 5 feet long and will be placed Six feet apart and 5 feet from the end of the building wall how many windows can a contractor design

64. ## Math

i am a number between 50 and 60. one of my factors is 28. qhat number am I?

65. ## Calculus: free body diagram--PLZ HELP!=)

Grain is being poured through a chute at a rate of 8 cubic feet per minute and forms a conical pile. The radius of the bottom of the pile is always half of the heightof the pile. How fast is the circumference of the base increasing when the pile is 10 feet

66. ## Chemistry

What would the equation be for the reaction between potassium permanganate and cyclohexene. I know it's a oxidation reaction but not sure of the equation.

67. ## physics

A cannonball of mass 3.67 kg is shot from a cannon at an angle of 39.51° relative to the horizontal and with an initial speed of 56.41 m/s. As the cannonball reaches the highest point of its trajectory, what is the gain in its potential energy relative to

68. ## physics

What is a vibration? What is the relationship between period and frequency?

69. ## English/Grammar

I have an English 10 Summer Assignment about grammar and such. One of the questions is: In the following sentence, which words are verbs? Melissa was worried about her job interview. a. was, worried b. worried c. worried, about I know that it's not c., and

70. ## Statistics

The Tyco Video Game Corporation finds that it is losing income because of slugs used in its video games. The machines must be adjusted to accept coins only if they fall within set limits. In order to set hose limits, the mean weight of quarters in

71. ## mlit

a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due

72. ## algebra

what is 4x-15/2=1/2

73. ## physics

How would you draw 4 cm 45 degrees north of east plus 4 cm west?

74. ## physics

What is a capacitor used for in a current other than just collecting energy?

75. ## anatomy

What is the kcalorie value of a meal supplying 110g of carbs, 25g of protein, 20g of fat, and 5g of alcohol? Please help show work

76. ## chemistry

How do I predict the formula for the ionic compounds when I combine? Cr(+3) and chlorate Na(+1) and carbonate K(+1) andsulfate

77. ## u.s. history

what were the similarities and differences of the reform movements of the early 1800??? This site may help you find the similarities and differences. http://home.earthlink.net/~gfeldmeth/lec.reform.html This is a general overview of reform.

78. ## Math algebra

Mia bought 7 golf balls. The total weight of the golf balls was 8 ounces. To the nearest hundredth of an ounce, how much did each golf ball weigh?

79. ## life orientatio

The physical, social and economic consequences of president Jacob Zuma's corruption and fraud

80. ## 7th grade challenge math

of 109.6 million house holds, 19,508,800 watched the television show CIS during the week of October 3, 2005. what percent of american households watched CIS this week?

81. ## Math/Algebra

I really need help! I have a paper due tomorrow and I can't find out this answer. Can you help me? The question says this: -2=n+5. Under it it says: (-2)-____=n+5-____. I know that n equals -7 but I can't find out the blanks. Please help!

The amount of vitamin c in the breakfast cereal varies directly with the serving size. If 1 and 1/4 cups of cereal provides 10% of the recommended daily value of vitamin c, what percent of the recommended daily value of vitamin c is in two cups of cereal?

83. ## science

1. List 5 organs [heart,lungs,brain,kidneys, liver] you learned about and tell about what they do. 2.What 2 organs help filter the blood? 3.How do bones and muscles work together when you raise your arm? 4.Trace a drop of blood as it leaves the heart and

84. ## mummies and stuff

I already did this project and learned alot. Can you help me learn more? -Lizzy the AWESOME

85. ## physics

a box is thrown upwards with a velocity of 8m/s and takes 2seconds to reach its maximum height.how high does it go up

87. ## chemistry

Why will the pH of pure water at 25 degree celcius be equal to 7.0 ?

88. ## english

I need help labeling complements in my sentences. I am not sure if I am doing this correctly or not. Could you please check to see if I have the following parts of speech labeled correctly? I must identify the subject, verb and complements. I must

89. ## Biology A

The process in which am amoeba engulfs its pray and takes it in is known as _________.

90. ## Biology A

In a ______________ __________________ the concentration of the solutes outside and inside the cell are equal.

91. ## physics

The system shown in the Figure is in equilibrium. The mass of block 1 is 2.2 kg and the mass of block 2 is 3.5 kg. String 1 makes an angle = 28o with the vertical and string 2 is exactly horizontal. what is the angle between the string that connects the

92. ## final problem for checking

x^3-x^2-6x greater than or equal to 0 x(x-3)(x+2)greater than or equal to 0 I figured that I have to factor first. Where do I go from here?

93. ## History

1. Explain the argument in favor of ratifying the Constitution that Alexander Hamilton makes in this excerpt.

94. ## Math

A car traveled 280 miles and you 6 gallons of gas if the same car traveled 1260 miles at the same rate how many gallons of gas would be used

95. ## Maths Lit .Economics .Business.Accounting.English.Afrikaans

Can I be a Accountant studying these subjects

96. ## Honors Physical Science

An object is moving at 25 m/s and has a kinetic energy of 12,500 J. If the acceleration due to gravity on Mercury is about 3.8 m/s2 , what would be the weight of this object on Mercury?

97. ## Calculus

On what intervals of t is the curve described by the given parametric equation concave up? Concave down? x=t^2; y=t^(3)+3t

98. ## Math

HELP! I have a math question the says this: In track practice, Jesse ran a mile in 7 minutes. His mile time was 2 1/2 minutes faster than Michael's time. Write and solve an equation to calculate Michael's mile time. I can't figure out what to do and it's

99. ## calculus help!!!!

Find derivative of: g(theta) = cos^2(2theta-1)