# lee

Newest questions and responses by lee
1. ## Social studies

Why were many countries still dependent on outside help from other nations, such as the United States, following their independence in the 1800s? A. The colonies were weak, and other nations promised to maintain military bases in their countries in order

2. ## Chemistry

The equation of a simulated photosynthesis reaction is represented by 6CO2(g) + 6H2O (g) -> C6H12O6(s) + 6O2(g) At 31 degree celcius, tje following equilibrium concentration were found [H2O] = 7.91X10^-2M [CO2]= 9.30X10^-1M [O2]= 2.40X10^-3M Determine the

3. ## Chemistry

The equation of simulated photosynthesis is represented by 6CO2(g) + 6H2O(g)-> C6H12O6(s) + 6O2(g) At 31 degree Celcius, the following equilibrium concentration were found. [H2O] = 7.91X10^-2M [CO2] = 9.30X10^-1M [O2] = 2.40X10^-3M My question is how to

4. ## Chemistry

A sample of 0.314g of unknown monoprotic weak acid, HA was dissolved in 25.00 mL of water and titrated with 0.1M KOH. The acid required 27.20 mL of the base to reach equilibrium point. Find the pH of the solution if 40 mL KOH is added to the acid solution.

5. ## physics

A walker's speed, v, is proportional to the ratio of his leg length, L, and the period of the repeating motion of his legs, T, that is, v ∝ L/T. If the period is measured to be proportional to Lp, where p = 3/4, what power of L must the speed be

6. ## Math

In order for a pet to lose weight in a healthy manner, a veterinarian suggested an overweight large-breed dog lost 2 pounds per week. If the expression x-2y represents this situation what must be true about the value of y?

7. ## history

Question: 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goo... 8) What impact did the Columbian Exchange have on imperialism? A) The popularity of Columbian goods throughout Europe built American empires. B)

8. ## history

What led to the development of one-crop economies? A. Joint-stock companies found profitability in monopolizing one cash crop. B. One-crop economies were developed through slash-and-burn agricultural practices. C. Colonies sought to reduce costs by

9. ## math

A theater has 22 seats in the first row, 25 seats in the second row, 28 seats in the third row, and so on. How many seats are in the Fifteenth row?

10. ## math

A ball is thrown into the air with an upward velocity of 40 ft/s. Its height h in feet after t seconds is given by the function h = -16h 2 + 40t + 6. A. In how many seconds does the ball reach its maximum height? B. What is the ball's maximum height?

11. ## math

Marcella and Ruben bought some party supplies. Marcella bought 3 packages of balloons and 4 packages of favors for \$14.63. Ruben bought 2 packages of balloons and 5 packages of favors for \$16.03. Find the price of a package of balloons.

12. ## basic word and excel

_______ data would be useful for creating a weekly status report for your manager that should reflect changes in real time. A. Field B. Integrated C. Linked D. Embedded

13. ## basic word & excel

6. _______ data updates in your destination document if there are changes to the source data. A. Linked B. Integrated C. Embedded D. Field

14. ## Science

If there's 1 gram of nitrogen (N2) at 1 L and 1 gram of hydrogen (H2) at 1 L, would the pressure of H2 be greater than the pressure of N2? And would the density of H2 = the density of N2 at these conditions? There would be more moles of H2 than N2, but the

15. ## Basic Word and Excel

What would be a situation in which you could use an Excel chart to present your data? a.)determining what percentage of customer 101 buys product A, and what percentage of the same customer buys product B b)Compiling survey questions and answers from both

16. ## Calculus

What is the size of the smallest nonnegative angle coterminal with an angle of 1051π radians? I got 180, but it wasn't correct?

17. ## Chemistry

How much energy (in Joules) is required to heat 10.48 g of water from 12.7 oC to 46.3 oC ? Use 4.184 J/goC as the specific heat capacity of water. 53 g of water at 81.5 oC is added to a calorimeter that contains 50.52 g of water at 40.6 oC. If the final

18. ## chemistry

N2 (g) + 3H2 (g) → 2NH3(g) ΔH = -92.2 kJ How much heat (in kJ) is released if 13.3 g of hydrogen is consumed to make ammonia? (Give your answer as a positive number, since you cannot release negative energy.)

19. ## Bus math

Bari Jay, a gown manufacturer, received an order for prom dresses from China. Her cost is \$40 a gown. If her markup based on selling price is 76%, what is the selling price of each gown?

20. ## English and Arts

In your personal opinion are you in agreement with the auteur theory?

21. ## Cinema

Is the auteur theory accurate? I mean should one person receive the credit for making the movie or at least the inspiration to make the plot of the film?

22. ## English

Which of the following sentences demonstrates the correct use of capitalizing direction words? A. Are you heading East? B. Poor Alex thought he was driving West. C. The Northeast has been hit with an unusually cold winter. D. I live just South of Scranton.

23. ## Computer

Diagnosing is solving the problem, and troubleshooting is figuring out what the problem is. True False

24. ## Math

Julia spent 1/3 of her birthday money and she lost half of the rest now she has \$10 left how much did she get for her birthday

25. ## Language Arts

"Everyone is just walking along concerned with his own problems, his own life, his own worries. And we're just expecting other people to tune in to our agenda." Think about how this theme is developed through the character's words and actions in the novel.

26. ## social studies

There was a crossword puzzle in issue 24 of the N.C weekly reader...8 across and neither my child nor myself could find the answer, she answered all of the rest of the puzzle words, but this one stumped her and it did me as well, the question was, "N.C to

27. ## Physics HELP!

A locomotive of mass 2.1 x 104 kg travelling at 2.0 m/s runs into an identical stationary locomotive. a) If the collision is perfectly inelastic, what is the speed of the two trains after the collision? b) If the collision is perfectly inelastic, what

28. ## Physics

A 5.0 kg penguin sits on top of a 12 kg sled, as in the figure. A horizontal force of 45 N is applied to the sled, but the penguin keeps himself stationary by holding onto a string attached to the wall. The coefficient of kinetic friction between the

29. ## Physics

On takeoff, the combined action of the engines and the wings of an airplane exert a force of 8.00 x 103 N on the plane upward at an angle of 65.0˚ above the horizontal. The plane rises with constant velocity in the vertical direction while continuing to

30. ## Physics

An 1800 kg helicopter rises with an upward acceleration of 2.0 m/s2. What lifting force is supplied by its rotating blades?

31. ## Chemistry

Which of the changes are chemical changes? a) Sugar crystals are ground to a fine powder. b) A candle is burned c) Two clear colorless salt solutions are mixed and a bright orange precipitate forms. d) Candle wax is melted e) A silver teapot turns black

32. ## Geography

Why might a Confucian praise or criticize China’s current political system and its approach to economic and political change?

33. ## Chemsity

will calcium metal be oxidized by sr2+?

34. ## Physics

An amount of ideal gas is placed in a sealed rigid cylinder. The container is initially placed in boiling water. It is quickly removed and placed in ice-water bath. Draw this thermodynamic process on a PV diagram. If the question change to An amount of

35. ## Physics

Three vessels have different shapes, but the area of their bottom surface is the same, and all three are filled with water with the same depth (1.|_| 2.\_/ 3./_\ ). Rank the magnitudes of the net forces exerted by the water on the bottom surface.

36. ## Math

I don't understand stand this 20y+1.50x=?????

37. ## Social Studies

How were the economies of the Nothern and Southern states different? How were they the same?

38. ## I need help, I'm stuck...what is the correct answe

The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: 6.5 The median score on this test is: 7.5

39. ## Frequency-Math

The table below shows the scores of a group of students on a 10-point quiz. Test Score Frequency 3 0 4 2 5 2 6 1 7 2 8 3 9 0 10 4 The mean score on this test is: The median score on this test is

A camera is capable of snapping three fourts of a pic per second. How long will it take the camera to snap 6 pictures?

41. ## Geology

Which of the following is consistent with the plate tectonic theory? Which of the following is consistent with the plate tectonic theory? A. Lithosphere convection drives mantle movement. B. As a plate sinks into the asthenosphere, it pulls the trailing

42. ## Math

A population of 41,250 increases each year by 2%

43. ## Physics

A person driving her car at 45km/h approaches an intersection just as the traffic light turns yellow. She knew that the yellow light lasts only 2s before turning red,and shi is 28m away from the near side of the intersection. Should she try to stop,or

44. ## Adding intergers and their application

If the temperature was 55 degrees at 3pm what is the temperature at 11pm

45. ## college algebra

A study found that athletes who rested after exhausting exercise had half life of lactic acid removal about 23 minutes. How long would it take to remove 90% of the lactic acid?

46. ## Math

How do I write the equation for this: sum of ten and nineteen

47. ## Math

How do I write the equation for this: sum of ten and nineteen

48. ## QUS 103

A locomotive of mass 20000kg is traveling at a speed of 54km/hr on a straight track.if a breaking force of 250N per turn is applied .how far will the locomotive travel before being brought to rest? My solution:v=0 u=15m/s S=? F=250 M=20000 F=ma

49. ## history

What was the main goal of Greek colonization in the archaic period

50. ## math

car gets 19 miles to the gal at let's say \$3 per gal, taking an 8.5mi trip. How much does this trip cost?

51. ## CIVICS PLS HELP MS. SUE!!!

Imagine a pasture in a small town with grazing sheep owned by several farmers. Every farmer profits by increasing the number of sheep he has on the pasture. However, the pasture can hold only so many sheep before it runs out of grass for the sheep to eat.

52. ## Algebra

How do I solve this? A plane flying the 3458-mi from New York City to London has a 50-MPH tailwind. The flight's point of no return is the point at which the flight time required to return to New York is the same as the time required to continue to London.

53. ## Math

Federico needs to frost 36 cupcakes for a party. He has already frosted 23 cupcakes and wants to know how many more he has to frost. He writes the following two equations to represent the problem, but does not know which equation is correct: 23 + c = 36 36

54. ## math

In triangle XYZ,A is the midpoint of YZ. The bisector of the exterior angle at X of XYZ cuts YZ produced at B. The line through A parallel to XB, cuts XY at P and XZ produced at Q. 1. PY= QZ

55. ## MATH

What would be the circumference of a cylinder that has a height of 8 inches and a radius of 1.6?

56. ## math

The area of a rectangular prism is 93.5 inches The height of the prism is 8 inches and the width is 2.5 inches I need help in finding the length of the rectangular prism

57. ## Algebra

TeaPots n Treasures sells loose Oolong tea for \$2.15 per ounce. Donna mixed Oolong tea with shaved almonds that sell for \$0.95 per ounce to create the Market Street Oolong blend that sells for \$1.85 per ounce. One week, she made 300 oz of Market Street

58. ## Math

A picture frame is 6 1/2 inches wide. The ratio of the length of the frame to the width is 3:2. What is the length of the frame in inches?

59. ## english composition ll

Which of the following best illustrates a positive feedback loop?

60. ## Physics

In the series circuit, if the current through R1 is 1.5 A, what is the current through R2? 1. Unable to determine 2. 1.5 A 3. 1 A 4. 0.5 A 5. 3 A

61. ## Physical sciences

Two forces A and B act at a point O. A=30 N at 60 degree and B= 40 N at 120 degree, relative to x-axis. Calculate the magnitude and direction of the resultant force using the method of perpendicular components.

62. ## Language arts

Change possessive to it's longer form. Paul rings the church bells at a moment's notice.

63. ## English

How would I change this sentence to possessive long form? Paul rings the church bells at a moment's notice.

64. ## Language arts

How would I change this sentence possessive to long form? Paul rings the church bells at a moment's notice.

65. ## College algebra

Show me how to solve x^4-1=0?

66. ## Math

Measuring across a 14 inches how many square inches is in the circle

67. ## maths

A bag contains six blue and 4 red balls ,3 balls are drawn at random replacement what is expected no.of red balls that can be drawn?

68. ## chemistry

ΔH°rxn is -114.14 kJ/mol. Calculate ΔH°f of gaseous nitrogen monoxide, given that ΔH°f of NO2(g) is 33.90 kJ/mol.

69. ## Math

25% of my candies are chocolate candiea i had 25 chocolate candies. How many candies did i have altogether?

70. ## science

Saturn rotation and revolution compared to earth

71. ## math

Jessica left the mall and drove toward the desert at an average speed of 40 mph. Shreya left one hour later and drove in the same direction but with an average speed of 60 mph. How long did

72. ## chemistry

Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O.

73. ## math

A car can travel 436 miles on 17 gallons of gas. How far can it go on 22 gallons of gas?

74. ## Personal Finance

Would you prefer a fully taxable investment earning 13.8 percent or a tax-exempt investment earning 10 percent? assume a marginal tax rate of 28 percent.

75. ## Chemistry

. Show a chemical reaction by which hardness is added to water that also explains the formation of caves in limestone formations?

76. ## Poetry

What is rhyme scheme? (1 point_ The stressed and unstressed syllables within a poem a type of poetry that has no rhyme, but no rhythm (or patter of lines that rhyme within a poem) a poem that has a rhyming meter a poem consisting of ten syllables I think

77. ## Social Studies Native Americans

How did the Native American groups of the northern west coast adapt to their environment? a: they built their homes out of a sun dried brick called Adobe b: they had a nomadic culture, moving there teepees from place to place c: they used tree bark to make

78. ## Social Studies

Where was the native American population density higher in 1500? A.Greenland 2. Caribbean islands 3.Present day Florida 4.Present day California CAN SOME HELP PLEASE :))

79. ## Organic Chemistry

Consider the crystallization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40°C rather than 78°C (the boiling point of ethyl alcohol), how would this affect the percent

80. ## Math and exopents

Given w = 10. w + w (12 - 2*2 * 3) * 7? Can some one help? the answers are: 73 12 6 3 but none of my calculations are 73, 12, 6 or 3 :(

81. ## Math

PLEASE HELP What is 6x3 / 9 - 1? I got 6 x 3 = 18 / 9 - 1 = 1 But for the answers it only 2 3 5 6 no 1 :((

82. ## Spelling

Does the word swimming have any silent letters? Is the second letter m silent?

83. ## Differential calculus

The voltage across the plates of a capacitor at any time t seconds is given by V=Ve -t/CR, where V,C and r are constants. Given V = 300 Volts, C =0.12*10-6 F and R = 4*10 6 ohms Find the initial rate of change of voltage and the rate of change of voltage

84. ## math

A rectangular dog pen that has the greatest possible area within a budget of 50\$.A pen needs at least one gate for a dog. Fencing is \$1.00 per foot, fence posts are \$2.00 each and gates (3 feet wide) are \$5.00 each. what is the area of a pen? pls help me

85. ## physics

a softball is thrown at a speed of 40 miles per hour in a course that makes an angle of 60 degrees with the positive x axis. what is the initial speed in the horizontal direction?

How do i work out the mass of a flywheel. I am given the density as 7500kg/m3, a 500mm diameter and a 10cm thickness. Please help

87. ## science

A car,mass of 1500kg,accelerates at 2m/s from rest. Find 0-60mph time, use 1 mile=1613m

88. ## chemistry

What is the volume of dry O2 gas at STP, if it had a volume of 5.00 L at 103 kPa and 300 K?

89. ## chemistry

Consider the reaction 2 NO2 (g) ⇌ 2 NO (g) + O2 (g). If the initial partial pressure of NO2 (g) is 3.0 bar, and x is the equilibrium pressure of O2 (g), what is the correct equilibrium relation?

90. ## trapezoidal method

dy dt = 1 + (t − y)^2, t ∈ [2, 3], y(2) = 1 use a step size of h = 1 and the Trapezoidal method to calculate by hand a numerical value for Y1 (≈ y(t = 3)).

91. ## Geometry

A red cross helicopter takes off and flies 75km at 20degree south of west. There it's drops off some relief supplies. It then flies 125 km at 10 degree west of north to pick up three medics. A. Make an accurate drawing of the two vectors decribed? B. draw

18*5 1/16=

5*5 1/16=

94. ## Chemistry

calculate the density of 50.0 g of gold that occupies a volume of 2.59 mL.

95. ## Simultaneous equations

3x-14y=O and x-4y+1=0

96. ## logic and design

algorithm for waking in the morning, making and eating breakfast, I don't feel this is enough for my teacher can you help me. Idon't know if i have enough code start get up while not awake drink coffee endwhile if temperature < 65 then wear sweater else

97. ## Physics

a rectangular box of negligible mass measures 5m long,1m wide and 0.5m high. How many kilograms of mass can be loaded into the box before it will sink in a freshwater lake?

98. ## Math

A carton contains 1 8/9 liters of apple juice. Rosalia drinks 1/6 liter of the juice every day. How much apple juice is left in the carton after a week?