Popular questions and responses by Jaden
1. ## physics

a very loud train whistle has an acoustic power output of 100 W. if the sound energy spreads our spherically, what is the intensity level in dB at a distance of 100 meters from the train? I0=10^(-12) the answer is 200 m but how do i get it?

2. ## algebra

Triangle ABC is transformed to create triangle DEF. What sequence of transformations maps one to the other? Select all that apply. A.Rotate 180° about the origin, then translate left 2 units B.Reflect over the x-axis, then translate down 2 units

3. ## english

Select the abbreviation that tells how the italicized noun clause is used. S-subject, DO-direct object, SC-subject complement, OP-object of preposition (What I wanted to do) was to finish my work. S The valedictory prize will be awarded to (whoever has the

4. ## physics HELP

which unit is equivalent to meters per second? a. hz*s b. hz*m c. s/hz d. m/hz

5. ## Math 6b

You roll a number cube twice. Find P(even then not 2). Write the probability as a fraction in simplest form. I don't know the answer to this one but I'm just asking for the process so I can solve it.

6. ## Physical

A truck moves 60 kilometers east from point A to point B. At point B, it turns back west and stops 15 kilometers away from point A. What are the total distance and total displacement of the truck? A.The total distance is 105 kilometers, and the total

7. ## Science 6

When you turn on a battery powered flashlight, you transform... A:heat energy into light and chemical energy. B:chemical energy into electrical energy and light. C:heat energy into chemical energy and light. D:eletrical energy and light energy into

8. ## ELA

Which of the following archetypal patterns best categorizes the huge, chaotic, and happy Finney family. A:the sage B:the hero C:the villain D:the lunatic I think D. thank you

9. ## Math

Ms.Groves has trays of paint for students in our class each tray has five colors one of the colors of purple what fraction of the colors in 20 trays of purple

10. ## Science

What do simple machines do? I can't unscramble these letters to get the answer: pldkwoohsrue

11. ## physics

please help with either or both 1. a charge of 10C is passing in 2 second through a cross sectional area of a conductor. calculate the intensity of magnetic field at a distance of 10 cm from the conductor. 2. An amount of 3X10^20 electrons is passing in a

12. ## Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.443g of calcium nitrate dissolved in water with 16.083g of rubidium phosphate dissolved in water? Report your answer to 3 decimal places.

13. ## Math 6b

The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a consonant the first time and a vowel the second time if the spinner is spun twice My spinner has 3 parts, N E and U A:2/3 B:2/9 C:3/4 D:5/9

14. ## Science 6

during the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. the energy stored in these covalent bonds is called? A:nuclear energy. B:thermal energy. C:electrical energy.

15. ## SS

Which phrase best describes the shift in power in Iraq since independence? A:From Democracy to Monarchy B:From Dictatorship to Monarchy C:From Democracy to Dictatorship D:From Monarchy to Democracy I think it is B or C. Thank you for your help

16. ## health and P.E.

Why is fiber necessary for proper functioning of the digestive system? A:It creates cell membranes, nerve tissue, and substances that aid in the digestion of fat. B:It helps proper functioning of the digestive system and prevents constipation. C:It is

17. ## science

which of the following would decrease the human ecological footprint? 1) using bottled water instead of tap water 2) using public transportation instead of riding in a car 3) buying books instead of borrowing from the library 4) using hot water instead of

18. ## science

How is biodiversity related to human activities that use natural resources? 1) it decreases as humans use natural resources wisely 2) it increases as humans develop sustainable ways of using natural resources.

19. ## science

Which of the following will make it harder in the future to develop sustainable methods for humans using resources? 1) there will be fewer renewable resources 2) more humans will populate the earth 3) more humans will recycle mterials

20. ## Math

In middle school computer club, 3/8 of the members are girls. Of the girls in the club, 2/5 are 6th-graders. Write and solve an equation to find the fraction of the members of the club that are 6th-grade girls.

21. ## math

the top of a bridge tower needs new lights. the lights along the perimeter of the tower's top has an area of 65 sq. meters it has a width or 5meters. what is the perimeter of the top tower?

22. ## ECONOMICS HELP!!!

I need some help because its due tomorrow. And these are the questions: 3. According to economists, almost everything we do, has costs and benefits. Identify the costs and benefits of each of the following: going to the dentist for a checkup, doing your

23. ## Math

In a school orchestra, 2/5 of the students are string players. Of the string players, 5/8 are girls. What fraction of all the students in the orchestra are girls who play string instruments.

24. ## Science

An oxygen ion has 8 protons and 6 electrons. What is its charge in coulombs?

25. ## Chemistry

How many mols of OH-(aq) ions are present in 20.33mL of 1.33M sodium hydroxide solution?

26. ## Chemistry

How many mols of tyrosinate ions (C9H10NO3-(aq)) are present in 909mg of sodium tyrosinate solid (NaC9H10NO3)?

27. ## Chemistry

What is the difference between a forward and a reverse reaction? I am studying Lechatelier's principal and it states that with an increase in temperature it favors a reverse reaction and when the temperature decreases it favors a forward reaction. What

28. ## physics

You pick up a charge of one micro-Coulomb while walking over carpet, how many electrons were transferred? (Order of magnitude only) TRUE OR FALSE: If a third charge is released in the middle between the two positive charges, independent of the magnitude of

29. ## chemistry

How many grams are there in 25 moles of sodium oxalate? Please explain step by step. I'm confused.

30. ## trig

how do i solve tan(165) and sin(285)

31. ## Math

Can someone check my answers for me pls? True or False LCM of 10 and 18 is 180; False LCM of 8 and 30 is 120; True LCM of 3 and 4 is 12; True LCM of 42 and 28 is 168; True LCM of 9 and 15 is 45; True

32. ## Chemistry

How many grams of calcium phosphate (precipitate) could be produced by combining 12.096g of calcium nitrate dissolved in water with 16.498g of rubidium phosphate dissolved in water? Report your answer to 3 decimal places.

33. ## Math/Algebra

The cost of an icee is \$.40 less than half the cost of the pizza. Mrs. Tangier bought three ICs and two pizzas and spent a total of \$12.03. How much is the cost of an Icee?

34. ## Chemistry

Consider the following chemical equation : 2NO2(g)=N2O4(g). If 25.0mL of NO2 gas is completely converted to N2O4 gas under the same conditions, what volume will the N2O4 occupy?

35. ## Physics

A car skids to a stop. The length of the skid marks is 50m. What information do you need in order to decide whether the car was speeding before the driver hit the brakes

36. ## Math 6b

If a coin is tossed and a number cube is rolled, what is the probability that the coin shows heads and the number cube shows 3 A:1/2 B:1/9 C:1/6 D:1/12 I think the answer is D. thank you

37. ## health and P.E.

Because alcohol is a depressant, which drug would be the most harmful when used with it? A:barbiturates B:chewing tobacco C:marijuana D:tar I think the answer is c. thank you

38. ## Math 6b

Estimate the sum of a circle with a radius of 27m. Use (22 over 7) for pie A(258 square meters B(1125 square meters C(2291 square meters D(5253 square meters I think C. Thank you

39. ## SS

Free trade has led to move more manufacturing jobs in Mexico because it? 1) They encourage them to work harder 2)they make it possible for more people to become U.S. citizens 3)they discourage them from working for reform 4) they increase their dependence

40. ## Science 6

When striking a match what type of energy is represented? A thermal B chemical potential C mechanical D electromagnetic I think the answer is b Thank you

41. ## SS

1 Cattle ranchers are generally found in northern Mexico because. A There are many cities where beef can be sold. B There is a lot of open space for grazing. C Cattle thrive in rain forest. D There are many sources of water. 2 For what reason did Hernan

42. ## Math

A cell phone compnay offers its customers a monthly plan that cost \$55 per month plus \$0.08 for each minute used. If Marissa use 225 minutes in a month, how much will she pay for one month?

43. ## SS

Immigrants who came to the united states in the 1800s, had which effect on the country? A:filled many jobs. B:created businesses. C:fueled expansion of the united states. D: all of the above. I think the answer is D. Thank you

44. ## SS

After the Civil War, many settlers who migrated likely went? 1) to Canada 2) to the South 3) to the West 4) to Maine

45. ## SS

Which event contributed most significantly to the settlement of Muslim peoples in Israel? 1) Exodus 2) Diaspora 3) Holocaust 4) World War 2 I think 2 but not sure

46. ## SOCIAL STUDIES

In which way are the governments of Saudi Arabia and Oman most similar? 1) the rulers are related 2) they both have absolute monarchies 3) they have newly written constitutions 4) their structures descend from OTTOMAN caliphs I think 4 thanks !

47. ## SS

Which of the following had the most impact on the drawing of modern borders in southwest Asia? A:british mandate B:tribal affiliation C:Ottoman governors D:military districts under world war 1 I think the answer is A. Thank you

48. ## Science 6

Renny noticed that after oiling his skateboard wheels, it was easier to reach the speeds he needed to perform tricks. How did the oil help? A:The oil reduced friction between the moving parts of the skateboard. B:the oil increased the friction between the

49. ## SS

How do most people in Israel and its neighbors differ from political extremists such as terrorist? A:they have firm beliefs about the existence of Israel. B:they are dedicated to their religious heritage. C:they seek peace and security D:they care little

50. ## Health

Explain why a doctor would prescribe medicine to someone who is in good health. 1) your cousin had her wisdom teeth removed and is in pain. 2) your grandmother is not getting enough iron in her food and she feels tired. 3) your mother needs special

51. ## art

In what way is a conservator similar to a scientist? A:Both conservator and scientist relish doing research for extended periods of time. B:a conservator experiments with conservation materials just as a scientist experiments with different hypothesis.

52. ## SS

You want to find a painting of Abraham at a religious art exhibit. Where are you more likely to have success? A:in the Jewish, Christian, or Muslim displays. B:only in the Jewish display. C:in the Christian and possibly Jewish displays. D:in the Muslim

53. ## social studies

which of the following events most directly contributed to the establishment of Israel as a nation? 1) Exodus 2) Diaspora 3) Crusades 4) Holocaust I think 4

54. ## social studies

What goal led Israelis and Palestinians into conflict? 1} desire for independence and security 2) religious worship at the same temples 3) military dominance of region 4) political control of the same national government I think 3 but could not find it in

55. ## SS

If you wanted to catch a rainfall in Israel, where would you visit. A:Southern Israel B:east of the Jordan River C:the Dead Sea D:the Mediterranean Sea I think it is either C or D Thank you for your time

56. ## SS

Which of the following circumstances posses the greatest benefit and challenge to economics in the region? (region=southwest Asia) A:Lack of water B:Trade with foreign nations C:Dependance on oil D:Growth of tourism I think it is B Thank you for your help.

57. ## Science

By using different types of technology like satellites, radar, and river gauges, scientist can reduce flood damage and loss of life A:Models B:Automated weather systems C:Nonpoint sources D:Advanced warnings I think the answer is D. Thank you for your

58. ## math

Cn you explain the process of division of fractions/ reciprocals to me?

59. ## health and P.E.

Which type of fat is not naturally found in foods and should be used very little in your diet? A: monounsaturated fat B: saturated fat C: trans fat D: unsaturated fat I THINK ANS IS C

60. ## social studies

Which of these best shows the changing information control in China since the 1960s? 1) Education is important part of Chinese life 2}The government controls hat newspapers can publish 3)Independent business owners may start new companies 4) protesters and

61. ## social studies

How does the climate of Southeast Asia vary among regions? 1) mainland is much hotter that the islands 2) mainland receives monsoons but islands do not 3) islands are generally wetter than the mainland 4) islands have a subtropical climate but the mainland

62. ## SCIENCE

Which of the following would be most likely lead to increased biodiversity? 1) clear cutting 2) oil drilling 3) national park planning 4) farming I thing 3

63. ## social studies

which population and environmental issues are affecting the economy of Indonesia? 1) overcrowding and growing drought 2) declining population and air pollution 3) declining population and water pollution 4) overcrowding and destruction of rain forests

64. ## social studies

What is one way that European nations transformed the landscape of Southeast Asia? 1) large plantations replaced small farms 2) people moved from cities to countyside

65. ## social studies

why did the French give up their control of their colony in Vietnam in 1954? 1) a bloody war with communist led by Ho Chi Minh 2) the entry of the United States into the war in Vietnam

66. ## SOCIAL STUDIES

Did the MINANGKABAU interact with others as their culture developed ?

67. ## English

In the sentence

68. ## Math

How many arrays are there for modeling a rectangular quilt with 24 paper squares?

69. ## ECONOMICS HELP!!!

Due tomowrow and need help on these questions: 1. Explain Marx’s labor theory of value. 2. Why do you think that most economies are mixed economies instead of purely capitalist or purely socialist economies? 3. Choose a current economic issue or policy

70. ## Economics HELP!!!

I need some help because its due tomorrow. And these are the questions: 3. According to economists, almost everything we do, has costs and benefits. Identify the costs and benefits of each of the following: going to the dentist for a checkup, doing your

71. ## math

one bottle of shampoo costs \$6 for 8 ounces.A second bottle costs \$4 for 5 ounces of shampoo.Which has the lower unit rate?How much lower?

72. ## Chemistry

A buffer is made by mixing 100 mL of 0.25 M acetic acid (CH3COOH) and 150 mL of 0.10 M sodium acetate (CH3COONa). Calculate the pH of the solution after 0.5g of solid NaOH is added to the solution (Given Ka (CH3COOH) =1.8 x 10-5)

73. ## Pre Calculus

a biologist has three salt solutions: some 5% solution, some 15% solution, and some 25% solution. She needs to mix some of each to get 50 liters of 20% solution. She wants to use twice as much of the 5% solution as the 15% solution. How much of each

74. ## pre algebra help

9. how you would convert the repeating, non terminating decimal to a fraction? explain the process as you solve the problem. 0.1515 I don't understand this question can someone help explain this?

75. ## Math. Help Thanks!

Hot dogs and Hamburgers: 1.) The caterer for your class picnic charges \$1 for each hotdog and \$2 for each hamburger. You have \$48 to spend. Write a model that shows the different numbers of hot dogs and hamburgers that you could purchase... 2.) Airplane

76. ## algebra

How do you solve -5(a-2)-2

77. ## Math

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering \$1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

78. ## math

a quadrilateral has angles measuring 27, 56, and 80. what does the fourth angle measure?

79. ## Physics

An antiproton (same mass as the proton, charge -e) is at the observation location. What is the force on the antiproton, due to the π-?

80. ## Phyics

A π- ("pi-minus") particle, which has charge -e, is at location ‹ 3.00e10-9, -2.00e10-9, -3.00e10-9› m. What is the electric field at location < -3.00e10-9, 3.00e10-9, 4.00e10-9> m, due to the π- particle?

81. ## physics

A package of mass 9 kg sits at the equator of an airless asteroid of mass 4.0 1020 kg and radius 4.9 105 m. We want to launch the package in such a way that it will never come back, and when it is very far from the asteroid it will be traveling with speed

82. ## trigonometry

If sin 57=m then express the following questions 1. Sin 237 2. cos 33 3. cos 3 4. cos 66

83. ## Chemistry

Explain, not just describe, the relationship between these rankings. Most reactive to least reactive metals: Zn, Pb, Cu, Ag Most reactive to least reactive metal cations: Ag, Cu, Pb, Zn

84. ## Chemistry equation

Write a correctly balanced series of chemical equations to describe the stepwise protonation of carbonate ion. Na2CO3 with HCl

85. ## Chemistry eq

How many milliliters of 0.430M hydrochloric acid (HCl(aq)) must be added to 15.00mL of 0.682M sodium hydroxide (NaOH(aq)) to reach the equivalence point?

86. ## Chemistry eq

How many milliliters of 0.430M hydrochloric acid (HCl(aq)) must be added to 15.00mL of 0.682M sodium hydroxide (NaOH(aq)) to reach the equivalence point?

87. ## Chemistry titrations

25.00mL of an unknown sulfuric acid solution is titrated to the second equivalence point with 21.02mL of 0.420M potassium hydroxide solution. What is the concentration of the sulfuric acid solution?

88. ## chemistry concentrations

You have combined the following: 7.92mL of 1.122M Fe(NO3)3(aq), 5.02mL of 1.849M NaCl(aq), and 7.09mL of water. What is the concentration of chloride ions in the resulting solution? Assume liquid volumes are additive

89. ## Chemistry

The dye molecule 7-aminocoumarin has an extinction coefficient of 2800M-1cm-1 at 432nm. An aqueous sample of 7-aminocoumarin is placed in a cuvette with a 1.00cm path length and the absorbance is found to be 1.75 at 432nm. What is the molarity of

90. ## Calculus

F(x) = -6x^8 F'(x)= y= 7e^x + 2 y' =

91. ## Chemistry

Which are within 10% of 4.63mins? 4.13 5.28 5.02 4.23

92. ## Chemistry

What is the concentration of methanol in a solution prepared by combining 7.85mL of a 3.693M methanol solution with 17.50mL of water? Assume volumes are additive and report your answer to 3 decimal places.

93. ## Chemistry

If the freezing point of pure toluene is -95.15 oC and its freezing point depression constant is -8.38 oC/molal, what is the freezing point of a solution made by dissolving 39.338g of anthracene (C14H10) in 150.0mL of toluene? (Density of toluene =

94. ## Math

write 3 different ones.numbers you could add to where you need to regroup to find the sum

95. ## Physics

Andre at 60 kg, hits the trampoline after falling from 4 meters. The trampoline stretches 0.6 meters and andre stops in 0.3 seconds.What is the force constant of the trampoline?

five secific events that can be expected to cause the equilibrium price of a good to increase?

97. ## algebra

perform the indicated operation and simplify: 3x+6 x^2-4 ----- divided by ----- 4x+12 x-3

which of the 5 regions contain rich farmland in Arkansas and Louisiana created by Mississippi and Red Rivers?

99. ## Chemistry

Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C? The freezing point for pure water is 0.0 C and Kf is equal to 1.86 C/m. * Use Tf = Kf*i*m