# Questions Asked onApril 7, 2015

1. ## Trigonometry

a bicycle with 24inch diameter wheels is traveling at 15mi/hr. a) Find the angular speed of the wheels in rad/min. b)How many revolutions per minute do the wheels make?

2. ## Math I need help ASAP!

1) Identify the function rule shown in the table. Function Table n - 3, 4, 5, 6 y - 2, 1, 0, -1 a. y = 2 + n b. y = 5n c. y = 5 - n d. not enough information ** 2) What is the values of the function y = -2x - 4 for x = 0,1,2 and 3? a. 0, -6, -8, -10 b. -4,

"President Lincoln’s Declaration of Emancipation, January 1, 1863" by Frances E. W. Harper 1 It shall flash through coming ages, 2 It shall light the distant years; 3 And eyes now dim with sorrow 4 Shall be brighter through their tears. 5 It shall flush

4. ## MATH PLZ SOMEONE HELP

7. Suppose you earn \$10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h? (1 point) E(h) = 10h E(h) = h + 10 E(h) = h – 10 h = 10E

5. ## English

Which of the following is a good rule to follow when proofreading an essay? A. Scan the essay twice, once for organization and once for surface errors. B. Ask your best friend to critique your essay. C. Use the computer's spell-check and grammar-check

6. ## physics

Anna applies a force of 19.5 newtons to push a book placed on a table. If the normal force of the book is 51.7 newtons, what is the coefficient of kinetic friction? A) .01 B) .20 C) .38 D) .48

7. ## English

Which of the following sentences contains an error in subject-verb agreement? A. Either Dennis or Susan is going to pick you up. B. Each of the 14 groups are going to contribute an item to the auction. C. Kristy, Molly, and Kate attend the same university

8. ## engineering science n3

A train with a mass of 120Mg accelerates uniformly on a horizontal track.the resistance to movement is 5N per KN of the mass of the train. The force in the draw-bar of the locomotive is 80KN.calculate: 1.the force required for the constant speed. 2.the

9. ## Science

How much current does a flashlight use if its battery supplies 3.0 Volt and the bulb has a resistance of 4.0 Alpha

10. ## Chemistry

At 20 degrees celcius the vapor pressure of toluene is 22 mmhg and that of benzene is 75 mmhg. Assume an ideal solution, equimolar in benzene and toluene. At 20 degrees celcius what is the mole fraction of benzene in the vapor in equilibrium with this

11. ## science.......

1.a ball with a mass 2kg rests on an incline with an angle of 10 degrees. The ball is released to roll down the incline plane neglecting all friction: Determine the following: A.the loss in potential energy after it has rolled 12m. B. The kinetic energy

12. ## Chemistry

Calculate the molarity (M) of the following solutions: 4.00moles of glucose in 3.00L of glucose solution 5.50g of KOH in 4.00L of KOH solution 5.85g of NaCl in 400.mL of NaCl solution

13. ## physics

A train with a mass of 120Mg accelerates uniformly on a horizontal track.The resistance to movement is 5N per KN of the mass of the train.the force in the draw bar of locomotive is 80KN..calculate:1force reqqured for constant speed. 2.the force that causes

14. ## math

During the summer holidays,your brother earns extra money mowing lawns.He mows 6 lawns an hour and has 21 lawns to mow.How long will it take him?

15. ## English

Select correct if sentence does not need any comma's and incorrect if the sentence does need a comma. 1.We were tempted to drink out of that clean cold stream Correct***** incorrect 2.How do motorcycles trail bikes and mopeds differ? Correct

16. ## social studies

1) How did Muslim Turks influence Turkey's development? 2) What is likely to happen in the political and economic future of Cyprus? 3) How are the viewpoints of Turkey's urban and rural population likely to differ regarding the role of women in society?

17. ## math

A worker uses 4 gray tiles for every 5 blue tiles that he uses.(a) If he uses 60 gray tiles, how many blue tiles does he use? (b) If he uses 540 tiles altogether, how many gray tiles does he use?

18. ## Science

1. What do bone marrow (the soft connective tissue that fills the internal spaces in bone) and the dermis (layer of the skin under the epidermis and over the hypodermis) have in common? (1 point) • They are both sites of new cell formation. • They both

19. ## Math

A multiple-choice question has five possible answers. What are the odds in favor of guessing the right answer? A.2:3 B.4:1 C.1:4 D.3:2 Is the answer C? Thank you

20. ## Chemistry

An aqueous solution of 0.25 M silver nitrate, AgNO3, and 0.25 M iron(II) nitrate, Fe(NO3)2, are allowed to come to equilibrium in the following chemical reaction: Ag+(aq) + Fe2+(aq) Fe3 + (aq) + Ag(s) If the equilibrium constant, Kc, for the reaction is

21. ## Chemistry

A coffee cup calorimeter contains 100.0 g of water at 10.0 ◦C. A 72.4 g sample of iron is heated to 100 ◦C and dropped into the calorimeter. Assuming there is no heat lost to the coffee cup, calculate the final temperature of the system. The specific

22. ## math

Juanita Finn deposits \$12,000 into an account at Valley Bank that pays 8% interest compounded quarterly. At the end of 5 years, how much will Juanita have in her account? Round to the nearest cent.

23. ## Calculus

A wire 7 meters long is cut into two pieces. One piece is bent into a square for a frame for a stained glass ornament, while the other piece is bent into a circle for a TV antenna. To reduce storage space, where should the wire be cut to minimize the total

24. ## Social studies

1.What was the most important factor leading to the end of the Cold War? a)The European Economic Community formed b)Democratic revolutions began in Eastern Europe c)The Marshall Plan helped rebuild Western Europe d)a U.S.-soviet peace treaty helped repair

25. ## math

the perimeter of a rectangle is 35.54 inches longer than the perimeter of a square of side 6.75 inches. Find the perimeter of the rectangle to the nearest tenth of an inch.

26. ## Physics

The person in the drawing is standing on crutches. Assume that the force exerted on each crutch by the ground is directed along the crutch, as the force vectors in the drawing indicate. If the coefficient of static friction between a crutch and the ground

27. ## physics

A flywheel rotates at a constant angular acceleration. At time t = 1.38 s, it rotates with a speed of ω = 2.40 rad/s in the clockwise direction. At time t = 5.97 s, it rotates with a speed of ω = 2.40 rad/s in the counter-clockwise direction. What is its

28. ## chemistry

What must be true for a substance to dissolve in water? A. The entropy term must be positive. B. The enthalpy and entropy terms must combine for a favored reaction. C. The free energy change of dissolving must be positive. D. The energy required to break

29. ## Algebra

Glen created a mural on a rectangular sheet of paper with a width of √18 feet and a length of √24. A. Find the exact area of the mural, in simplified form. When Glen’s mural was unveiled, the school made a smaller version of the mural to advertise

30. ## Physics

Question: A car goes down a ramp, and once it hits the floor it must travel 6 metres and then stop. Create the procedure in order to find the angle that the board must be to make this scenerio possible. You cannot test on both the floor and the board at

31. ## Chemistry

C18H32O2 + 2H2 - C18H3602; oxidized or reduced?

32. ## math

a man uses 1/3 of his land for growing mangoes,!/4 for bananas ,3/8 for apples ,and the remaining 18 hectares for oranges , so find how much land does the man have ?and find how much land does he use for growing apples ?

33. ## English

Based on your reading of “On Making an Agreeable Marriage” and A Vindication of the Rights of Women, what can you conclude about women’s education at the time these pieces were written? A. Women were mainly taught practical skills useful in running a

34. ## Math

Determine the coefficient of w x^3 y^2 z^2 in (2w−x+y−2z)^8. Thanks.

35. ## math

an oatmeal cookie recipe that makes 24 cookies requires 1 cup of sugar if alex needs 30 cookies how many cups of sugar should she use

36. ## Language arts help

In the following sentence, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. A. Everyone B. annex C. heard D. her Is the answer C? Thank you on advance

37. ## math

1. When 100 students took a test, the average score was 77,1. Two more students took the test, the sum of the score was 125. What is the new average ? 2. The Basket Ball Team and Baseball team have a total of 24 players. There are 12 basket players and 18

38. ## Physics!

An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120-V circuit. How much energy is given off by the toaster in 42.0 seconds? Show all calculations leading to an answer.

39. ## Chemistry

If you need to produce 355 grams of oxygen gas (O2) in the electrolysis reaction of water by an electric current. If the reaction is run at 125 degrees Celsius in a reactor volume 22500ml. What is the pressure of the produced oxygen in mm Hg?

40. ## Physics

A rescue helicopter is lifting a man (weight = 868 N) from a capsized boat by means of a cable and harness. (a) What is the tension in the cable when the man is given an initial upward acceleration of 1.83 m/s2? (b) What is the tension during the remainder

41. ## Physics

A mountain climber, in the process of crossing between two cliffs by a rope, pauses to rest. She weighs 530 N. As the drawing shows, she is closer to the left cliff than to the right cliff, with the result that the tensions in the left and right sides of

42. ## Physics

During a storm, a tree limb breaks off and comes to rest across a barbed wire fence at a point that is not in the middle between two fence posts. The limb exerts a downward force of 246 N on the wire. The left section of the wire makes an angle of 14.2°

43. ## PHYSICS

A spring gun, held horizontally 1.70 m above the ground, fires a 0.010 kg marble so that it lands a horizontal distance of 7.60 m away. If the gun is pointed straight up, and the same marble is fired, how high (in meters) will it rise? I tried using

44. ## Chemistry

If you have 225 grams of Ca3(PO4)2, and 185g H3PO4; calculate which is the limiting reagent, which the XS reagent, and how much product you will produce from the limiting reagent (in grams) Ca(PO4)2 + 4H3PO4 = 3Ca(H2PO4)2

45. ## math

what is he interior points and doundary points of empty set?

46. ## English

1. I ate little food on my lunch plate. 2. I ate a little food on my lunch plate. 3. I ate less food than Bill. 4. Bill ate more food than me. 5. I ate the least food in my class. 6. I ate the least food of all my classmates. 7. I ate the least food of all

47. ## math

a spinner is divided into 10 sectors. the number 1 through5 are each placed in two different sectors. find the probability of each event. P(less than 3) P (5) p (8)

48. ## Math

Jamal found 1/3 gallon of milk in the kitchen. He poured it into 5 equal size cups. What fraction of a gallon of milk is in each cup? 1/3 of 5 3 x 5 = 15 1/15

49. ## HELPP

The volume of a rectangular prism can be computed using the formula V = lwh. What is the width of a prism that has a volume of 1664 cubic centimeters, a length of 16 centimeters, and a height of 8 centimeters? A. 11 cm B. 13 cm C. 26 cm D. 768 cm

50. ## grammar

Though no vote ____taken, each delegate and alternate _____there. a.was, was b.was, were c.were, was d.were, were I chose a, because I think that each before delegate makes it singular. But I also think that and between delegate and alternate might mean it

51. ## Chemistry

Determine the volume, in milliliters, required to prepare each of the following diluted solutions. 40.0mL of a 2.75M KNO3 solution using a 1.00M KNO3 solution 45.0mL of a 2.90M H2SO4 solution using a 6.00M H2SO4 solution 0.700L of a 2.10M NH4Cl solution

52. ## math

In constructing a graph that compares average water usage per household in different communities, you choose to use cubes of different sizes. If the cubes are drawn so that their volumes are proportional to the volumes of water usage in different

53. ## Math

You are working as an assistant to a chef. The chef has 6 cups of berries and will use 2/3 cup of berries for each dessert he makes. How many desserts can he make? Where do I start to solve this problem?

54. ## Math

the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x-60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the

55. ## Chemistry

Calculate the average C—C bond strength in cyclopropane (in kJ/mol). Its combustion and the experimental enthalpy of reaction are: C3H6(g) + 4.5O2(g) → 3CO2(g) + 3H2O(g) ΔHºrxn = -1,957.7 kJ/mol Since all reactants and products are in the gaseous

56. ## Chemistry

Calculate the vapor pressure of Hg at 14 oC (in atm). Hg(l) ↔ Hg(g) . . . ΔHo = 61.32 kJ and ΔSo = 98.83 J/K

57. ## math

A 2-inch length in the scale at the left represent an actual length of 20 ft. What is the scale of the drawing?

58. ## Chemistry

What are the correct and accurate products for the following ion combination reaction? Then write the ionic form of the reaction and the net ionic form of the reaction. K2CO3 + CaCl2 ->

59. ## algebra

x^2-9y^2/xy/1/y-3/x

60. ## Math

There are 35 marbels in a bag: 9 blue marbels, 8 green marbels, 4 red marbels, 8 white marbels, and 6 yellow marbels. Find P(red). Write the probability as a fraction in simplest form, a decimal, and a percent. A. 4\31,0.129,12.9% B. 4\35,0.114,11.4% C.

61. ## cheminstry

A sample of neon gas has an initial volume of 2.5L at 300 K. What is the new temperature of the gas(both in K and Celsius degrees) if the pressure remains constant, when the volume is changed to each of the following values: a. 5.00L b. 7.50L c. 1.50L d.

62. ## english

1.Antigone decides to bury her brother in defiance of the law. Her sister argues against it. Summarize the two sides of the argument, and explain Antigone's reasons for doing as she does. 2.Creon says that it would be wrong for him to listen to the

63. ## social studies

how was the northern renaissance simaler to the italian renaissance? how was it differ?

64. ## Chemistry

In a 25.8 liter vessel of nitrogen gas that is heated from 10 degrees Celsius to 110 degrees Celsius to reach a final pressure of 17450 mm Hg; how many grams of N2 do you have in the vessel?

65. ## Chemistry

If you have a 1255ml of a 10.55 M solution of HCl and you need to dilute the solution to 1.555 M solution; How much solvent must you add?

(4n-1)^2=16

67. ## Art

Drawing: girl in a southern German folk costume it's the first picture in Google search. How did the designer of the German folk dress use the principles of art? A. The designer repeats colors throughout the apron to create unity. B. The designer uses

68. ## Applied Chemistry - HELP!

Make a poster of types of product warning labels. I'm having a hard time looking up types of product warning labels. Please help and please do not just give me Google link to product label for me to look up by myself which I did but I .... having a hard

69. ## Math

A number cube with the numbers 1 through 6 is rolled. Find P ( number is greater than or equal to 3). A.4\6 B.1\6 C.2\6 D.5\6 Is the answer A? Thank you

70. ## Philosophy

Is there objectivity in ethics, or is ethics simply a matter of social convention? Does the wrongness of some acts - such as genocide, torture, terrorism, murder - transcend social convention?

71. ## Physics

On a frictionless air hockey table, a puck of mass 5.0 kg moving at 2:0m=s approaches an identical puck that is stationary. After collision, the rst puck moves at 30 degrees above the original line of motion; the second puck moves 60 degrees below. (a)

72. ## math

Aubrey has a shelf full of books. • Exactly 1 }3 of the books on the shelf are mysteries. • Aubrey has read 10 of the mysteries on the shelf. • The number of mysteries Aubrey has read is greater than 1 }5 of the number of mysteries on the shelf and

73. ## math

The gardener went to the market to buy 100 animals for a total of IDR 1.000.000. If the price of cow IDR. 50,000 /cow and goat IDR 10,000 /goat , rabbit IDR 5000 /rabbit , how many of each kind of animal which can he buy ? I wrote : Cow = X = 50.000 Goat =

74. ## Physics

A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 131 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 59.9 kg,

75. ## math

In a car repair shop there are 50 cars to be repaired . It is estimated that 23 of that cars need new brakes , and 34 of that cars need to repair the exhaust system . a. How many cars are in need of repair at least two? b . What most cars that are not in

76. ## Physics

The alarm at a fire station rings and a 98.5-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.00 m). Just before landing, his speed is 1.81 m/s. What is the magnitude of the kinetic frictional force exerted on the

77. ## NEED HELP PHYSICS!!!

A person is flying a model airplane with mass 82.2 gram in a horizontal circular path on the end of a string 10.5 m long. The string is horizontal and exerts a force of 3.22 N on the hand of the person holding it. What is the speed (in m/s) of the plane?

78. ## Physics

A student is skateboarding down a ramp that is 6.03 m long and inclined at 21.5° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.87 m/s. Neglect friction and find the speed at the bottom of the ramp.

79. ## NEED HELP PHYSICS!!!

Tarzan (m = 78.4 kg) tries to cross a river by swinging from a vine. The vine is 10 m long. Tarzan doesn't know that the vine has a breaking strength of 1045 N. What maximum speed (in m/s) can Tarzan have at the bottom of the swing (as he just clears the

80. ## NEED HELP PHYSICS!!!

An airplane is flying in a horizontal circle at a speed of 117 m/s. The pilot does not want his centrifugal acceleration to exceed 6.8g (that is, to be more than 6.8 times the acceleration of gravity). What is the minimum radius (in meters) of the circular

81. ## Astronomy

Why will detecting Earth-sized planets be much more difficult than finding Jupiter-sized planets around other stars?

82. ## chemistry

If you start with 146 g of water at 47◦C, how much heat must you add to convert all the liquid into vapor at 100◦C? Assume no heat is lost to the surroundings. Answer in units of kJ.

83. ## math

A man has been through 24 phases traveling in a motorcycle rally and finish as much as 37.7 % of the way to be traversed . How many phases that must be gone through to complete the 58 % ?

84. ## Physics

The drawing shows a circus clown who weighs 750 N. The coefficient of static friction between the clown’s feet and the ground is 0.630. He pulls vertically downward on a rope that passes around three pulleys and is tied around his feet. What is the

85. ## math

A television is sold at a discount of 13 % for IDR. 870,000. What is the actual price of the television before at a discount ? COnfuse..

86. ## math

Mr. Kardi have 5 trucks of sand . The charge then A and B are 2.5 ton , trucks C and D 3 ton , 1 ton truck E load over charge - average. How many tons of cargo trucks E ?

87. ## math

In a contest , 2 participants were asked about their age . To test the strength of their math , they are asked to add their ages together. One answer 44 and the other gives 1280. The first obtained from the parse age with one another , while the second can

88. ## math

Janet has 4 }9 gallon of paint. She uses 1 }8 of the paint she has to cover 3 canvases. She uses the same amount of paint to cover each canvas. What amount of paint does Janet use to cover each canvas?

89. ## algebra

(x^-3+y^-1)/x^-2

90. ## Physics !

Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power

91. ## algebra/116

Which set of points are on the line y=6x-6 1.{(0,-6),(12,3)} 2.{(0,-6),(3,12)} 3.{(-6,0),(12,3)} 4.{(6,0),(3,12)}

given

93. ## finite math

Find the amount of an ordinary annuity for 5 years of quarterly payments of \$2,200 that earn interest at 4% per year compounded quarterly.

94. ## ALGEBRA /116

Solve the inequality -5x/7-2>-1 1.x4.2 3.x-1.4

95. ## English

What does the bride learn in “Woo’d and Married and A’ ”? A. Marrying a man who loves her is enough. B. Having a house of her own is the most important thing in life. C. If she and her husband work hard, they will eventually be rich. My choice is A

96. ## Math

A 12 foot-high pole casts a 9 foot long shadow, at the same time of day, what would be the length of a shadow cast by a 45 foot-long tree

97. ## Physics

A girl is sledding down a slope that is inclined at 30º with respect to the horizontal. The wind is aiding the motion by providing a steady force of 131 N that is parallel to the motion of the sled. The combined mass of the girl and the sled is 59.9 kg,

98. ## math

Five friends picked 7 pounds of apples. They will share the apples equally. How much will each get?

99. ## Language Arts

Which sentence contains a participle phrase? A. She wanted to spend time writing B. Her job is giving the attic dwellers their food C. Quickly snatching up the coat, she ran to her room? D. To get along well requires cooperation. Is the answer A? Thank you

100. ## math

If it says use the method of substitution to solve the system of linear equations 3a=6-b 3a=4-b How do i find the solution

101. ## Grambling

A jetliner, traveling northward, is landing with a speed of 83.8 m/s. Once the jet touches down, it has 750 m of runway in which to reduce its speed to 11.4 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take

102. ## Grambling

Displacement vector points due east and has a magnitude of 4.58 km. Displacement vector points due north and has a magnitude of 6.25 km. Displacement vector points due west and has a magnitude of 8.65 km. Displacement vector points due south and has a

103. ## science

A mixture of zinc and anhydrous zinc nitrate was heated in air, and its mass has not changed after this procedure. Calculate the mass frac-tions of the components in the mixture.

104. ## Physics

A motorcycle has a constant acceleration of 2.65 m/s2. Both the velocity and acceleration of the motorcycle point in the same direction. How much time is required for the motorcycle to change its speed from (a) 41.5 to 51.5 m/s, and (b) 71.5 to 81.5 m/s?

105. ## accounting

The following are examples of errors that will not be revealed by a trial balance: (a) errors of omission (b) incorrect total on trial balance (c) posting to the wrong account (d) compensating errors (e) The balance of a general ledger account has been

106. ## Physics

In an historical movie, two knights on horseback start from rest 79.7 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.323 m/s2, while Sir Alfred's has a magnitude of 0.252 m/s2. Relative to Sir

107. ## UNISA

he earns 0.8% interest per month while the amount is less than R70000 and 0.7% interest per month if the amount is equal to or more than R70000, the interest is added to the total amount, calculate how many months he will have to save

108. ## Physics

You are driving your car, and the traffic light ahead turns red. You apply the brakes for 2.28 s, and the velocity of the car decreases to + 4.76 m/s. The car’s deceleration has a magnitude of 2.99 m/s2 during this time. What is the car’s displacement?

109. ## Physics

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 8.11 s. What is its initial velocity? Neglect air resistance.

A train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw-bar locomotive is 80kN Calculate a. The force required for constant speed b. The force that

111. ## physics

From her bedroom window a girl drops a water-filled balloon to the ground, 4.75 m below. If the balloon is released from rest, how long is it in the air?

112. ## algebra

solve the set of linear equations by the matrices method: a+3b+2c=3, 2a-b-3c=-8,5a+2b+c=9

(5X+5)^2=125

114. ## Exponential Equations

Jen made an initial investment of \$1000 into a T-Bill account. After 2 years, her investment totaled \$1 175. Calculate the rate of appreciation, r, of the investment. Give answer to 2 decimal places. 1000(1+r)=^2=1.1175 (1+R)^2=1.175 ??

115. ## Math

James is training for a marathon. Every week, he increases the distance he runs by 15%. If James is running 8.5 miles this week, how far will he be running 2 weeks from now? I did 30/100=x/8.5 . I thought that if I did 30 (for 2 weeks) instead of 15 (1

116. ## physics

A 13.1-g bullet is fired into a block of wood at 261 m/s. The block is attached to a spring that has a spring constant of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop.

117. ## calculus

Find the area under one arch of curve y=cos(x/4). This lesson is plane areas in rectangular coordinates. I don't know how to solve it. Thanks for your help.

118. ## English

Which sentence contains an infinite phrase? A. Anne passed the time by sharing her dreams. B. Anne wanted to live in Paris. C. Her favorite activity was riding a bike. D. Living in hiding, she did with little privacy. Is the answer A?

119. ## English

Which word best describes the speaker's attitude toward death in “Ode to a Nightingale”? A. fear B. relief C. horror D. anxiety My choice is D

120. ## Physics

a blood centrifuge starts from rest and attains a rotational speed of 3400 rpm after 50 seconds. 1) determine average angular acceleration of the centrifgue 2) a 3ml blood sample is contained in a test tube at distance 37.5mm from the centreline. Calculate

121. ## Physics

A skateboarder approaches the circular hill with a velocity of 8.0 m/s at point B. The angle formed between the lines that join point AO and BO is 20 degrees. a) what is her speed at the top of the hill(Point A) if she coasts up to this point? b) what min

122. ## English

Which excerpt from the play best supports the answer to the reason Anne spend time with Peter in the third read of the diary of Anne Frank? A."I'm sorry Mother, I'm going to Peters room. I'm not going to let Petronella Van Dann spoil our friendship." B."I

123. ## English

1. Will you bring me the lamp? 2. OK. I'll bring it right back. 3. OK. I'll take it right back. ------------ Which answer is correct? Are both OK? Which one is commonly used?

124. ## Art

Which task is typical for a fashion designer? A. Designing a storyboard B. Researching new trends C. Organizing an exhibition D. Creating an blueprint Is the answer B? Thank you

125. ## Chemistry

Calculate ΔG (in kJ) at 298 K for some solid ZnF2, 0.055 M Zn2+ and 0.063 M F-(aq). I found Q to be 2.18e-4, then i implemented it into the equation deltaG=RT(lnQ). I got -20.89, but the answer is -12.2.

126. ## English

1. He kept a secret. 2. He broke a secret 3. He let out a secret. 4. He gave away a secret. 5. He betrayed a secret. ================= What is the opposite of #1? Can the others be used as the opposite? What is commonly used?

127. ## science.......,,....

train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw-bar locomotive is 80kN Calculate a. The force required for constant speed b. The force that causes

128. ## physics

A worker has to move a rock with mass 50 kg on a stairway from the first floor to the second floor of a house. The second floor is 4.6 m above the first floor and the stairway has 18 steps. The rock is lifted from step to step. How much energy (in Joule)

1. An electrical circuit consists of a battery with 2 cells,each with an EMF of 12 volts and an internal resistance of of 0.4 ohms,connected in parallel. An ammeter with an internal resistance of 0.15 ohms is connected in series with resistor Ra=2ohms and

130. ## math

A rectangular piece of construction paper is 11 inches long and 8 inches wide. How could it be cut to make a rectangle that has an area of 32 square inches?

131. ## Chemistry

Explain why the solubility of KHTar in 0.100 M NaCl solution differs from that in pure water? Explain why the solubility of KHTar in the mixed KCL - NaCl solution differs from that in the 0.100 M NaCl.

132. ## Algebra

12. Determine if the following is a conjuction or disjunction. y + 4 < -1 or y + 2 > 8 (Points : 1) 13. State how you determined if the combination above was a conjunction or disjunction. (Points : 2) 14. Solve the problem. (Hint: You should have two

133. ## criminal justice

could someone please let me know where I can find this type of question to read. discuss three key aspects of the school shootings that the court system has addressed so far. Thank you very much Mary Ann

134. ## civics and careers

How does people's legal rights in the charter related to citizenship (informed, active citizen)? As many reasons as possible

135. ## science.......

An electric bulb is marked 220v60w. An ammeter in the circuit shows the bulb uses a current of 0.2727A. The bulb burns for an hour. Calculate the following: A. The electrical energy consumption B. The cost for the bulb to burn for one hour if the cost of

136. ## physics

one car of mass 15.0kg is moving 5.00m/s to the right on a frictionless track and collides with a cart of mass 3.00kg. the final velocity of the carts that become stuck together after the collision is 1.50m/s to the right. find the velocity of the second

137. ## physics

Assume the muscle is 37C and is separated from the outside air by layers of fat and skin. The layer of fat, at a particular location on the skin, is 2 mm thick and has a conductivity of 0.53 W/mK. Finally, the outermost epidermal layer is 0.1 mm thick with

138. ## math

Ted is helping his father plant their vegetable garden this year. They will put a fence around the garden. Ted measures the length of the garden, which is 6 feet. His father tells him that the width is twice the length. How much fencing do Ted and his

139. ## Pre-calc

There exist constants a, b, c, and d such that(sin x)^7 = asin 7x + bsin 5x + csin 3x + dsin x for all angles x. Find d. I tried rewriting them in the exponential form, but it becomes ugly as there are many negative cosines and divisions of i. Help?

140. ## math

Joey's playhouse has a perimeter of 28 feet. What could be the dimensions of the playhouse? Draw a model and label the length and width. Show that the dimensions equal a perimeter of 28 feet.

141. ## Chemistry

If the reaction 2NO + 2H2 --> N2 + 2H2O occurred in just a single step, the overall order of the reaction would be A) 1 B) 2 C) 3 D) 4 E) 5

142. ## Chemistry

In a chain mechanism, a reaction in which two free radicals combine to form a stable molecule would be called the A) initiation step B) termination step C) propagation step D) inhibition step E) branching step

143. ## Algebra

1. If m∠1=37º , what is m∠4? a) 53º b) 43º c) 37º d) 27º 2. If m∠1=50º , what is m∠5? a) 50º b) 40º c) 35º d) 25º 3. If m∠4=25º , what is m∠8? a) 105º b) 75º c) 175º d) 25º 4. What is the sum of the interior angles of a hexagon?

144. ## Spanish

How would I say "Unhealthy cafeteria food" in spanish? Would it be "comida de la cafetería no saludable"?

145. ## math

Janice walked around two sides of a square park. The perimeter of the park is 1,200 yards. How many yards did Janice walk? Explain your answer.

146. ## Math

Use the function rule, y = 2x + 5, to find the values of y when x = 1, 2, 3, and 4. Write the answers as ordered pairs that would be used to graph the function. I did 3 I just need help with 1, 2 and 4.

147. ## chemistry

Describe the following types of corrosion and give a practical example of each 1.pure chemical corrosion 2.pure electrochemical corrosion

148. ## chemistry

A piece of metal of mass 18 g at 104 ◦C is placed in a calorimeter containing 47.4 g of water at 22◦C. The final temperature of the mixture is 40.8 ◦C. What is the specific heat capacity of the metal? Assume that there is no energy lost to the

149. ## math

Roger just got a puppy for his birthday. He and his mother will build a fence around an area in the backyard for the puppy to play in. The play area will be 24 square feet. What dimensions could the play area be? Which dimensions would require the least

150. ## Math

Patterns and colors on seventeenth to nineteenth century kimonos were used to identify the hometown of which of Japanese citizen? A. Farmers B. Nobility C. Warriors D. Lawmakers Is the answer C. Thank you

151. ## physics

You hold a hose 45 degrees to the horizontal and at a height of 1 m from the floor. The water reaches a maximum distance of 10 m from where you are standing. Now you place your thumb over the end of the hose to occlude the opening by 80%, which in turn

Wouldnt a "Administrative Assistant I" be considered as a non-exempt job??

153. ## Chem II

The conversion of glucose into lactic acid drives the phosphorylation of 2 moles of ADP to ATP and has a standard free energy of -135 kJ/mol. C6H12O6 + 2 HPO4 + 2 ADP + 2 H+ --> 2CH3CH(OH)COOH + 2 ATP + 2H20 What is the standard free energy for the

154. ## English

I need to describe the use of sound in Othello the play. Could someone give me an example from Act II for me to analyze please?

155. ## physics

a 16.0-g bullet is shot into a wooden block at rest with mass 4550g on a frictionless surface. the block moves 1.20m/s after the bullet strikes and becomes lodged in the block. find the speed of the bullet before striking the block.

156. ## math

A number has an 8 in the hundredths place. The number also contains a digit whose value is 1 } 10 the value of the 8 in the hundredths place. Which could be the expanded form of the number?

157. ## Physics

A 5000 kg space shuttle starts at rest and linearly increases its thrust from 0N to 1000N across a displacement of 2000 meters. Calculate the total amount of work done on the shuttle.

158. ## English

In the following sentence, which word is used as a conjunction? Lisa and Mary were home on time, but Kim, Francine, and Penny weren't going to make it. A. On B. But C. Were D. And my answer is b.

159. ## Physics!

An ammeter indicates the current for a toaster is 5.0 amps when the toaster is connected to 120-V circuit. How much energy is given off by the toaster in 42.0 seconds? show all the calculations leading to your answer

Hooke's law

161. ## Bus 101

Can someone help me to compare answer for final exams introduction to Business - These are my answers Here are my answers... 1.c 2.a 3.a 4.d 5.c 6.b 7.a 8.b 9.c 10.b 11.a 12.a 13.c 14.d 15.a 16.a 17.a 18.8 19.c 20.b 21.a 22.a 23.d 24.a 25.b 26.d 27.a 28.b

162. ## English

Choosing a good reviewer for your writing means finding someone who A. is a close friend and will give you a positive review. B. concentrates on correcting your spelling and grammar errors. C. will concentrate on your ideas and how well you support them.

163. ## calculus

Solve the equation. Give the exact solution. 2*10^(5x-3)+5=17

At the beginning of each year, Al rose invested \$1,200 semiannually at 12 percent for 8 years. The cash value of the annuity due at the end of the eighth year is?

165. ## History

1. Why do some argue that the Supreme Court "legislates from the bench" or, in other words, actually makes law? A. The Supreme Court does not legislate, i.e. make law. B. The Supreme Court is involved in administrative law. C. The Supreme Court's rulings

166. ## Science(need help)

1) What evidence is there that the human species has been successful so far? Explain. 2) What environmental pressures in the past do you think were most important in shaping the human species as it exists today? 3) What environmental pressures exist now

167. ## History

Is India a secular democracy? This isn't a homework question or anything this is just something I was wondering.

168. ## science

these are all very confusing for me 1. Explain why Earth and other planets were not solid when they formed during the beginning of the Precambrian, approximately 4,600 million years ago (MYA). What was this particular time period called, and why is this

169. ## Keep Memory Alive by Elie Wiesel

How could the "future of mankind" be sacrificed on "the fiery alter"?

170. ## English

During revision, you should scan your paper for _______ words and replace them with concrete words or phrases. A. figurative B. general C. formal D. informal my answer is b.

171. ## Chemistry

What is the mass in grams of 6.5 moles of water? could you show me how you get the answer to

172. ## math

In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central angle of the slice

173. ## geometry

A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the plane’s distance from point A when it reaches point C

174. ## Chemistry

What is the molarity of a solution containing 10.g of NaOH in 700.mL of NaOH solution? Express your answer to two significant figures and include the appropriate units.

175. ## Physics 1

A rotating cylinder about 5.0 miles in diameter is designed to be used as a space colony. With what tangential velocity must it rotate so that the residents on it will experience the same acceleration as that due to gravity on Earth? Recall that ag=g=-9.8

176. ## chemistry

Find (triangle)H for N2H4 + CH4O > C2HO + N2 + 3H2 2NH3 > N2H4 + H2 22.5 kJ 2NH3 > N2 + 3H2 57.5 kJ CH20 + H2 > CH4O 81.2 kJ

177. ## Chemistry

1. If two moles of ZnCl2 separate into Zn+ and Cl- ions, how many moles of Zn+ ions are present? 2. How many moles of NO3- are present in one mole of Mg(N03)2? The answers to both of these are 1 mole, right?

178. ## I NEED HELP WITH THIS

Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power

179. ## chemistry cp

The term formula mass is a general term that can be applied to both ionic compounds and molecular compounds because (a) ionic compounds exist as individual molecules (b) molecular formulas are always empirical formulas (c) not all formulas represent

180. ## English

Which of the following is not a type of sentence? A. Simple-compound B. Simple C. Compound-complex D. Complex my answer is b.

181. ## Algebra

Factor the following as if it were a trinomial. 25x^(3/2) + 10x^(3/4) + 1

182. ## Math

An airplane climbs 100 feet during the first second of takeoff. In each succeeding second it climbs 100 feet more than during the previous second. How many seconds does it take for the plane to reach an altitude of 12000 feet?

183. ## Math

Does a in y=ax^2+bx+c have to be positive?

184. ## math

charlie says that y=2x squared is not a function because the same y-value sometimes corresponds to more than one x-value. Is charlie correct

185. ## Math

How do you find x in y=-5x^2+30.5x without using the formula x=-b+ root b^2-4ac.... They say to factor it. But it's not working for me. The answer is suppose to be x= About 0.7 and 5.4. But I can't get that answer

186. ## Calculus

When production is 1700, marginal revenue is 8 dollars per unit and marginal cost is 6.75 dollars per unit. Do you expect maximum profit to occur at a production level above or below 1700? If production is increased by 50 units, what would you estimate the

187. ## mah

Let A = {a, b} and list the four elements of the power set P (A). We consider the operations + to be ∪, · to be ∩, and complement to be set complement. Consider 1 to be A and 0 to be ∅. a. Explain why the description above defines a Boolean algebra.

188. ## math help

Simplify this expression fully 6^x 2-3^x.2^x 1/6^x-1

189. ## Analytical Chemistry

Serum taken from a patient being treated with lithium for manic-depressive illness was analyzed for lithium concentration. A reading of 3.00xE2 units was obtained for the intensity of the 671 nM red emission line. Then 1.00 mL of a 11.8 mM Lithium standard

190. ## Socials 1 question

How does birth control affect our world population? Please give me a list of ideas, no sites please I know it helps reduce population growth rate but please tell me more about countries who don't have birth control and what it results in etc.. Thanks :)

191. ## Science

What kind of energy is transferred in an energy pyramid

192. ## chemistry

16.5 mL of 2.5 M sodium sulfate is mixed with 35.5 mL of 4.5 M sodium nitrate. What is the concentration of all ions in the new solution?

193. ## Chemistry

24.0 mL of a 2.4 M silver nitrate is mixed with 32.0 mL of 2.0 M sodium. Calculate the mass of precipitae formed. Calculate the concentration of all ions remaining in solution after the precipitate forms. I don't know how to start this or where to go with

194. ## physics

The figure below shows a clawhammer as it is being used to pull a nail out of a horizontal board. A force of magnitude 130 N is exerted horizontally as shown. (NOTE: Assume that the force the hammer exerts on the nail is parallel to the nail and

195. ## math

If the product of two numbers is even, and the result is an odd number , what is the numbers ?

196. ## Chemistry

I don't understand this one at all. Please help! For the equation: MnO2 (s) + 2 CO (g) → Mn (s) + 2 CO2 (g) 1. Calculate ΔG° at 25°C 2. Calculate ΔG° at 125°C

197. ## Math

the Ruby Snow Company makes custom snowboards. the company's profit can be modelled with the relation y=6x^2+42x-60,where x is the number snowboards sold(in thousands) and y is the profit (in hundreds of thousands of dollars) How many snowboards does the

198. ## Chemistry

What are the correct and accurate products of the following neutralization reaction. Then write the ionic form of the equation and the net ionic form. KOH + H2SO4 ->

199. ## social studies

1) Diversity most closely means (1 point) a. sharing cultural traits and practices with others. ** b. making up a whole of many different parts. c. being a member of a small ethnic group. d. having many similar regions next to one another. 2) How does life

200. ## math help

A tank has two pipes entering it.when operating together,they fill the tank in 40 minutes.operating independently,one of the pipes fills the tank 60 minutes faster than the other one does. calculate the time taken by each pipe to fill the tank on its own.

201. ## Math

Makoto's lacrosse practice last 1 3/4 hours. This week he attended all of the practice on Monday and Wednesday, but he had to leave halfway through practice on Friday. How many hours did Makoto's spend at lacrosse practice this week? 1 3/4 + 1 3/4 +1 3/4.

202. ## chem

Low-pressure sodium lamps have a sodium vapor pressure of 0.7 Pa at 260 °C. How many micrograms of Na must evaporate at 260 °C to yield a pressure of 0.7 Pa in a 27-mL bulb?

203. ## math help

Simplify this expression fully 9-x^2/x^2 3x-18

204. ## Math

1) When will the dependent variable in the equation y=√x+4-3 equal or exceed to 4? A) x > or equal to -0.17 B) x > or equal to 45 C) x > or equal to 48 D) x > or equal to 53 2) The function t=√d/16 models the time (t) in seconds that an object has been