# Questions Asked onOctober 29, 2011

1. ## Calculus

The number N of US cellular phone subscribers (in millions) is shown in the table. (Midyear estimates are given.) t 1996 1998 2000 2002 2004 2006 N 44 69 109 141 182 233 (a) Find the average rate of cell phone growth between the following years. In each

2. ## Physics (7)

A 12-g bullet moving horizontally strikes and remains in a 3.0-kg block initially at rest on the edge of a table. The block, which is initially 80 cm above the floor, strikes the floor a horizontal distance of 120 cm from its initial position. What was the

3. ## chemistry

If 5.20 g of HCl is added to enough distilled water to form 3.00 L of solution, what is the molarity of the solution? [Use molecular weight: HCl, 36.46 amu]

4. ## Physics (4)

A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall. The particle rebounds with a speed of 3.0 m/s. What is the magnitude of the impulse delivered to the particle?

5. ## Physics (6)

A 10-g bullet moving 1000 m/s strikes and passes through a 2.0-kg block initially at rest, as shown. The bullet emerges from the block with a speed of 400 m/s. To what maximum height will the block rise above its initial position?

6. ## Chemistry

Calculate the molarity of a solution if 300.0 mL of it contains 16.8 g of KNO3. [Use formula weight: KNO3, 101.11 amu]....Question do I need to convert 300.0 mL to L? My initial set up looks like this: (16.8g/101.11amu)/300.0 mL my answer turns out to be

In the design of a supermarket, there are to be several ramps connecting different parts of the store. Customers will have to push grocery carts up the ramps and it is obviously desirable that this not be too difficult. The engineer has done a survey and

8. ## physics

An Olympic skier moving at 20.0 m/s down a 30.0 degree slope encounters a region of wet snow and slides 145 m before coming to a halt. What is the coefficient of friction between the skis and the snow?

9. ## Calculus (Derivatives)

A tray of lasagna comes out of the oven at 200°F and is placed on a table where the surrounding room temperature is 70°F. The temperature T (in °F) of the lasagna is given by the function T(t) = e^(4.86753 - t) + 70, where t is time (in hours)after

10. ## English

Whitman's poetry reflects a romantic view of nature. A.True B. False

11. ## mRNA

sometimes a mistake occurs in the stranslation of an mRNA strand. Suppose that the reading of the mRNA stand ATGCCCGCTATCCGACGATAA began, by mistake, at the second nucleotide instead of the the first . Write the sequence ot amino acids that would be formed

12. ## physics

A person holds a 1.42N baseball in his hand, a distance of 34.0cm from the elbow joint, as shown in the figure . The biceps, attached at a distance of 2.75cm from the elbow, exerts an upward force of 12.6N on the forearm. Consider the forearm and hand to

13. ## Calculus

A 15 ft ladder leans against a wall. The bottom of the ladder is 4 ft from the wall at time t=0 and slides away from the wall at a rate of 3ft/sec. Find the velocity of the top of the ladder at time t=2. The velocity of ladder at time t=2 is

14. ## Calculus (Derivatives)

Two particles are moving in straight lines. The displacement (in meters) of particle 1 is given by the function e^(4cos(t)) , where t is in seconds. The displacement (in meters) of particle 2 is given by the function -(t^3)/(3) - (t^2)/(2) + 2 , where t is

15. ## Chemistry

Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K). Okay when I set up problem MRT....I get something totally different from the answer 2.9 atm. Could u please show me your set up to get to 2.9 atm? Thanks a billion!!

16. ## Physics (5)

A 2.0-kg object moving 5.0 m/s collides with and sticks to an 8.0-kg object initially at rest. Determine the kinetic energy lost by the system as a result of this collision.

17. ## chemistry

Calculate the osmotic pressure of a 6.0 × 10-2 M solution of NaCl at 20°C (293 K).

18. ## Chemistry

Calculate the concentration (% W/V) of NaCl solution that was made by dissolving 15.0 g of sodium chloride in enough water to make 300.0 mL of solution. Okay the answer is 5.00%....however I keep getting 0.0500%....Why? and which one is the correct answer?

19. ## Chemistry

Calculate the osmolarity of a 2.0 × 10-3 M Na3PO4 solution. Na3PO4 is an ionic compound and produces an electrolytic solution.

20. ## Trigonometry

Write as an algebraic expression in u. Tan(cos^-1 u)

21. ## accounting

Finishing Touches has two classes of stock authorized: 8%, \$10 par preferred and \$1 par value common. The following transactions affect stockholders' equity during 2010, its first year of operations: January 2 Issue 100,000 shares of common stock for \$25

22. ## chemistry

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is

23. ## Physics

A 1200-kg roller coaster car is initially at the top of a rise, at point circle a. It then moves 145 ft, at an angle of 40.0° below the horizontal, to a lower point circle b. (a) Choose the car at point circle b to be the zero configuration for

24. ## ELECTRICITY AND MAGNETISM

a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b? please some on SOLVE it and send me ON my emial after got solved pleaseee ?

25. ## algebra - help please

A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C. If the thermometer reads 15 degrees C after 4 minutes, what will it read in 6 minutes? 11 minutes? So I guess I need to put into newton's law of cooling:

26. ## chemistry

Consider a neutral atom with 30 protons and 34 neutrons. The mass number for this atom is

27. ## Math - more help please

A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C. If the thermometer reads 15 degrees C after 4 minutes, what will it read in 6 minutes? 11 minutes? So I guess I need to put into newton's law of cooling:

28. ## Biology

the biome with the fewest seasonal changes is?

29. ## matlab

One bank pays 5.5 percent annual interest, while a second bank pays 4.5 percent annual interest. Determine how much longer it will take to accumulate at least \$50 000 in the second bank account if you deposit \$1000 initially and \$1000 at the end of each

30. ## math (calculus)

A rectangular sheet of paper of width a and length b, where 0

31. ## Physics

Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one? Thanks! It is impossible to have a collision between two objects in which the

a rectangular picture 8 inches by 12 inches has a frame of uniform width x inches. Write a function expressing the total area A of the picture and the frame as a function of x.

33. ## statistics

In a sample of 100 steel wires the average breaking strength is 50 kN, with a standard deviation of 2 kN. a. Find a 95% confidence interval for the mean breaking strength of this type of wire. b. An engineer claims that the mean breaking strength is

asked by Don't get it!! :(
34. ## Physics (2)

The two particles are both moving to the right. Particle 1 catches up with particle 2 and collides with it. The particles stick together and continue on with velocity vf. Which of these statements is true? A. vf=v2. B. vf is less than v2. C. vf is greater

35. ## chemistry

a student set up a reaction with 0.2905g of cholesterol and 0.13g of nonanoyl chloride in excess triethylamine, and collected 0.0244g of solid product. what is the actual yield (in grams) of cholesteryl nonanoate? explain how to do this please :)

36. ## chemistry

Calculate the concentration (% W/V) of NaCl solution that was made by dissolving 15.0 g of sodium chloride in enough water to make 300.0 mL of solution.

37. ## algebra

How many years and days will it take for a deposit of \$700 to double at 4% interest compounded continuously?

i have been working one this paper for a few days and i have been struggling with it, I need to write about the elements and principles of the art piece "Polly, Minou and Eon" by Will Barnet. I cannot seem to figure out any of the elements and principles

39. ## math

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

40. ## math

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

41. ## speech

I am doing a speech on how to decorate a cupcake. But.. i do not know how to start it. I need an attention grabber any ideas?

42. ## mathematics

What is the solution for this? The surface area of a sphere varies in direct proportion to the square of its radius. If a sphere of radius 6cm has a surface area of 452 square cm, find, to the nearest mm, the radius of a spherewith the surface area 1000

43. ## physics

Find the linear speed of the bottom of a test tube in a centrifuge if the centripetal acceleration there is 5.4×104 times the acceleration of gravity. The distance from the axis of rotation to the bottom of the test tube is 7.9cm.

44. ## math

A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C. If the thermometer reads 15 degrees C after 4 minutes, what will it read in 6 minutes? 11 minutes?

45. ## Science

What would happen if ozone were to disappear from the upper atmosphere? From the lower atmosphere? Would we die if it disappeared completely?

46. ## Pre Calculus

using the factor theorem to show that x-c is a factor of P(X) for the given values of c, and factor 1. P(x)=x3-5x^2+8x-4; c=1

The slash (/) line represents that the number is a fraction. divide: sqrt45 / sqrt81 = simplify: 7sqrt3 / sqrt5 = Multiply: sqrt7/sqrt8 X sqrt24/sqrt49 = Thanks for the advice regarding how to show square root symbol correctly. Also thank for taking the

48. ## geometry

ray xy bisects angle axb?

49. ## statistics

Gallup News Service conducted a survey of 1,006 American adults aged 18 years or older, September 24-27, 2007. The respondents were asked, “What, if anything, worries you most about your personal financial situation in he long term? ‘Of the 1,006

50. ## math

1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

51. ## Physics (3)

An explosion in a rigid pipe shoots out three pieces. A 6 g piece comes out the right end. A 4 g piece comes out the left end with twice the speed of the 6 g piece. From which end does the third piece emerge? A. B. C Right end Left end Not enough

52. ## physics

Find the minimum diameter of a 51.5-m-long nylon string that will stretch no more than 1.01 cm when a load of 68.9 kg is suspended from its lower end. Assume that Ynylon = 3.51·108 N/m2

53. ## Algebra

One half of Heather's age two years from now plus one third of her age three years ago is twenty years. How old is she now? Let x= Heather's age now X must be a whole number that is positive.

54. ## Science

The word equation for Iron and Sulphur

55. ## Algebra 1

Can anyone help me with this two-step equation: 10=0.3x-9.1

56. ## college algebra

Solve the following equation in the real number system. Please show all of your work. 2x^3-3x^2-14x+15=0

is the trade-off between the necessity of writers, musicians, artists, and movie studios to profit from their work and the free flow of ideas for the public benefit. Movie (and music) industry participants claim that encryption programs are necessary to

•Discuss the pros and cons of the following statement: “ Egalitarian companies are more innovative•Identify three organizations that you perceive as being innovative. ◦Identify the innovation and its impact upon each organization.

59. ## Trig

Find the measure of the central angle, in radians, given the area of the sector as 22.6 cm2 and a radius equal to 3.7 cm

60. ## chemistry

You need to make an aqueous solution of 0.121 M magnesium chloride for an experiment in lab, using a 250 mL volumetric flask. How much solid magnesium chloride should you add ?

61. ## algebra - more help please

A thermometer reading 7 degrees C is brought into a room with a constant temperature of 29 degrees C. If the thermometer reads 15 degrees C after 4 minutes, what will it read in 6 minutes? 11 minutes? So I guess I need to put into newton's law of cooling:

62. ## American History

Which is most accurate regarding the American political climate between 1876 and 1896? A. The influence of the president over Congress diminished? B. The party that won the presidential election also controlled Congress? C. Southern states tended to vote

63. ## algebra 2

you can make an open box from a piece of flat cardboard. First cut congruent squares from the four corners of the cardboard. Then fold and tape the sides. let x equal the side of each congruent squares as x increases so does the depth of the box the

64. ## English

Hi, I'm having trouble understanding this and relating it back to my area of study, "belonging"- "In this regard, Emily Dickinson's poetry repeatedly echoes Voegelin's analyses of consciousness and existence. For Emily Dickinson, to be hman is to BE "the

65. ## physics

is the following statements true or false + write a correct version of each false sentance below: 1. usually, the cooler a liquid or gas is, the denser it is. 2. if you only want a small volume of hot water, you should place the immersion heater near the

66. ## chacking if i paraphrased correctly helppppppppppp

I was wondering if I paraphrased correctly. The original article is:(my work is at the end ) Known as the "Napoleon of the women's rights movement," Susan B. Anthony was the co-founder (with Elizabeth Cady Stanton) of the National Woman Suffrage

67. ## MATH 8TH GRADE Correction

Sorry I forgot to give directions for each problem. The lines represent that the numbers are fractions. Thank you. Multiply ã7/ã8 ~ ã24/ã49 = Divide ã45/ã81 = Simplify 7ã3/ã5 =

68. ## English III

☢HELP☢ How is the alchemist by Paulo Coelho a fable? How is the alchemist by Paulo Coelho a fable? A parable? An allegory? I don't know know at all. The story is a nice read . . . but its very hard to decipher. I can't find any passages in the story

69. ## Quantatative Analysis

"what volume of .50 m h2so4 must be added to 65 ml of .20 m h2so4 to give a final solution of .35 M? assume volumes are additive"

70. ## college algebra

Use the intermediate value theorem to determine whether the polynomial function has a zero in the given interval. f(x)=8x^5-4x^3-9x^2-9;[1,2]

71. ## college allgebra

f(x)=x^6+4x^5+4x^4+3x^3-x^2-5x+4 Find the maximum number of real zeros, and Use Descartes's rule of signs to determine how many positive and how many negative zeros the function has. You do not need to find the zeros.

72. ## college algebra

Find the real and complex zeros of the following function. f(x)=x^3-3x^2+25x+29

73. ## science

What have the compounds in each of these pairs in common? How could you distinguish one from the other? (a) CH3COOH and CH3OH? (b) C2H5OH and H2O?

74. ## Math

If KL=3cm,KM=7cm and LM=5cm.Calculate the angle K,M and the area of angle KLM

75. ## Physics (1)

A 4.1 kg rifle is suspended by strings and fires a 0.0030 kg bullet at a speed of 1500 m/s. What is its recoil speed in m/s?

76. ## physics

A person pushes a 10.0 kg lawn mower at constant speed with a force of 70.0 N directed along the handle, which is at an angle of è = 46.0° to the horizontal

77. ## Maths urgent help needed,

1.Mr Sim bought new tv at a discounted price of 15%.He paid \$836, inclusive of 3% GST(goods and services tax. What was the original price of the tv? 2.How to calculate original price before GST and before discount? What is the formula? Tks

78. ## Math

Which lists all the factors of a composite number? A) 1,3,9,27 B)1,9 C)1,2,3,4,12 D)1,11

79. ## Chemistry

Hi there - My labs and lectures aren't in synch at the moment so we are now doing a prelab that is asking for info I haven't been taught yet uggg... The prelab question I'm having trouble with is as follows: What is the volume at STP for 0.415 g of argon

80. ## double checking if i paraphrased correctly

Hi, You guys helped me earlier in editing my paraphrasing paragraph(thanx allot. This is my final draft hope it's edited correctly now. Susan B. Anthony was arrested and fined for illegally voting in the 1872 presidential election. She refused to pay the

81. ## Math

A seismograph 300 km from the epicenter of an earthquake recorded a maximum amplitude of 5.8 x10^2 µm. Find this earthquake's magnitude on the Richter scale.

82. ## Science

What kind of carbon-carbon bonds are found in alkane molecules? Is the answer Pentane

83. ## English

1) Writeacher, I need the help of a science teacher to find a theme high-school students (aged 16 and 17) can investigate with their German and French partners. Our students study biology (also bilotechnologies) , chemistry, and earth science. 2) Can you

84. ## physics

Hello, I'm trying to figure out which of the following statements are TRUE. I suspect that 2, 6, 8 are true...and that there is one more that is true, but not sure which one? Thanks! It is impossible to have a collision between two objects in which the

85. ## Intro To college math

Find the future value, using the future value formula and a calculator. (Give your answer to the nearest cent.) \$42.31 at 4.5% compounded semiannually for 4 years.

86. ## Physics

A 5.30-ìC charge is moving with a speed of 9.30 x 104 m/s parallel to a very long, straight wire. The wire is 6.60 cm from the charge and carries a current of 87.0 A. Find the magnitude of the force on the charge.

87. ## Physics

A 5.30-ìC charge is moving with a speed of 9.30 x 104 m/s parallel to a very long, straight wire. The wire is 6.60 cm from the charge and carries a current of 87.0 A. Find the magnitude of the force on the charge.

88. ## Algebra 1

Without solving the equation -3x+5=44, tell whether the value of x is positive or negative. How do you know?

89. ## Grammar

Select the sentence which is correctly punctuated, spaced, and capitalized. 1. A) The twins were a lot alike; they both ate too much. B) The twins were a lot alike: they both ate too much. C) The twins were a lot alike - they both ate too much. My answer

90. ## science

(a) at what times of year are the periods of daylight and darkness the same everywhere on the earth? What are these times called? (b) Where is the noon sun directly overhead at these times?

92. ## physics

A 1.7 kg block is moved at constant speed over a surface for which the coefficient of kinetic friction is 0.27. The displacement is 2 m. It is pushed by a force directed at 25 degrees below the horizontal. Find the work done on the block by: the force. How

93. ## biology

I really need help i am so confued !! use the crossover values given to calculate the sequence and the distance apart of the genes indicated P-m 7% K-m 28% P-K 21% m-C 5%

94. ## statistics

80% of students passed a class. 90% of those 80% did homework. Of the 20% that didn't pass, 60% of them did the homework. What is the probability of a student having done the homework?

95. ## Chemistry

1000 g of a 50% (mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many liters of water should be added to the starting solution? Please show me the detail answer

96. ## college algebra

Find the real and complex zeros of the following function. f(x)=x^3-3x^2+25x+29

97. ## trig

I'm confused with this concept: Okay, so I have this problem: cos2x( 2 cos+1)= 0 I understand I have to work the problems separately and I get cos x= 2 and cos x= 1/2 Now, what I don't understand is how this connects to pi, radians or the unit circle. If

98. ## science

If a 150 pound man walks onto an elevator. Suddenly it rises rapidly from the 1st to 14th floor. if the man steps onto a scale in the elevator during the rapid rise, he would weigh... A) 150 pounds B) More than 150 pounds C) Less than 150 pounds Please

99. ## social studies landforms

could you refer me to a website that would give me an image of geographic images and defitnions of landforms

100. ## help! physics

A 1.7 kg block is moved at constant speed over a surface for which the coefficient of kinetic friction is 0.27. The displacement is 2 m. It is pushed by a force directed at 25 degrees below the horizontal. Find the work done on the block by: the force. How

101. ## Ratio and proportion

About 9 out of 10 adults think it is a good idea to exercise regularly. But the ones who think it is a good idea, only 1 in 6 actually exercises at least 3 times a week. At this rate, how many of the 300 employees in our company exercise regularly? What I

102. ## Calculating Chi Squared

I did a biology experiment where I need to analyze the statistical significance of betweeen a data set. My experiment consisted of measuring the effects in photosynthesis and cellular respiration by exposing solutions with leaf discs to different light

103. ## health care

What effects or potential effects do technologically based communication modalities—between patients and health care providers and between health care providers only—have on health care costs?

104. ## Chemistry

1000 g of a 50% (mass percentage) nitric acid solution is to be diluted to 20%(mass percentage) nitric acid solution. How many liters of water should be added to the starting solution? Please show me the detail answer

105. ## chemistry

difference between cations and anions

106. ## college algebra

Form a polynomial, f(x), with real coefficients having the given degree and zeros. Degree 3; zeros: 1 + i and -10

107. ## soc 120 intro to ethics&social responsibility

Explore the challenges Goodman presents to relativism?

108. ## Economics

Consider a perfect competitive market. Analyze in detail using graphical tools what would happen to the number of firms and firm profitability in short run and long run if demand for product falls and if it rises

109. ## MATH Confused

How can I find the square root symbol to submit problems? Every time I choose the symbol that resembles the square root the actual format changes. When I sumbmit to you it looks like some crazy symbol. It makes the problems look totally different than they

110. ## geometry

line AB is parallel to line CD, the measurement of angle A=2x-25, and the measurement of angle C=x+5. find the value of x. show work and explain your reasoning.

111. ## Riddle HELP

There are tree stoves. A glass stove, a brick stove, and a wood stove. You only have a match. Which do you light up first? Two cops walked into a room with no windows and found a dead man who obviously hung himself from the ceiling, though they couldn't

112. ## chemistry

what is delta H for the formation of 12.9 g of Aluminum Oxide with 2 aluminum oxides as the reactant

113. ## Desert

How are deflation hollows made? Could you also give me some more pictures of hoodoos (the landforms)?

114. ## Statistical significance (Chi squared)

I just want to make sure what I'm calculating this right. The data I got for one time point are 6 and 23 I know the equation for chi^2 is Calculating Chi Squared - Catherine, Friday, October 28, 2011 at 8:15pm I did a biology experiment where I need to

115. ## Honors chemistry

What is the melting and boiling point of gold 16 carat

116. ## college algebra

list potential rational zeros f(x)=x^4+3x^2-4

117. ## English

Should Americans compaines refuse to do business in countries that do not pratice democracy?

I have a question and would appreciate any input or advice We just finished reading The Catcher in the Rye" and I'm stuck on a question for homework; Holden's anger over Stadlater dationg Jane, who symbolically guards her kings in a game of checkers shows

119. ## Math - logs

I need help solving this because it involves 2 bases: log (base 2) [log (base 5) 25]= ???

120. ## science

(a) What is the name of weather systems centered about regions of low pressure? (b) In what direction do winds in the northern hemisphere spiral around such a region? (c) In the southern hemisphere?

121. ## hvac

an oil slinger is found in a reciprocating compressor employing what type of lubrication system

122. ## MATH

Thanks for the answers but I must show the work for each problem. Can someone please help now that I finally submitted the square root correctly,thanks to drwls, and Ms. Sue. Thank you The slash (/) line represents that the number is a fraction. divide:

123. ## Stats

Consider the Avionic Manufacturing Company that wishes to meet a demand of 10 units per month by purchasing the items from a vendor with a lead time of three-quarters of a month. The item cost is \$2.50 per unit, replenishment cost is \$3.50 per order, and

124. ## science

If a 150 pound man walks onto an elevator. Suddenly it rises rapidly from the 1st to 14th floor. if the man steps onto a scale in the elevator during the rapid rise, he would weigh... A) 150 pounds B) More than 150 pounds C) Less than 150 pounds Please

125. ## English

I have a question and would appreciate any input or advice We just finished reading The Catcher in the Rye" and I'm stuck on a question for homework; Holden's anger over Stadlater dationg Jane, who symbolically guards her kings in a game of checkers shows

126. ## epidemiology

how does Healthy People address public health issues

127. ## General

The more I read I'm getting confused. Just want to make sure. Winds that pass through an upper level trough go counter-clockwise in the Northern Hemi & clockwise in the Southern Hemi, right?? Thanks

128. ## Math

25^-1+3(5^-1)^2 (4+8)^0-5^-2 (-1/2)^3+4^-3 (-3)^-1+4^0-6^-1

129. ## math

2. One side of a right triangle is 12.5 ft. The perimeter is 38.7 ft. What is the length of the hypotenuse and the other unknown side?

130. ## math

4. You have \$55000 to invest, and two funds you would like to invest in. The You-Risk-It Fund yields 13% interest. The Extra-Dull Fund yields 7% interest. Because of the college financial aid implications, you don’t think you can afford to earn more than

131. ## maths

what are all the mathethematical terms you need to include in your answer for a question based on circle theorums?

132. ## English

I left out this short summary. I really hope you can check this, too. Thank you. 1) Elephants are afraid of coming up close and personal (a synonym?) with humans because they have always been heavily poached. 2) The author of the article writes that he

133. ## English

work at start had been very strenuous.(turn into negative sentence)

134. ## chemistry

.46 gm of magnesium produces .7667 gm of magnesium oxide,.3 gm of magnesium liberates 280 ml of hydrogen at NTP from an acid and 1.26 gm of water is produce by combination of 1.12 gm of oxygen with hydrogen which law of chemical combination can be

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136. ## physics

Using a spring gun, a 4.0-kg steel block is launched up a lubricated ramp made out of steel. The angle of the ramp was measured to be 38.8º. The inital speed of the block was 12.0 m/s. (a) Determine the vertical height that the block reaches above its

137. ## Education 301

I need to complete an assignment for edu 301 and I am completely lost. Can anyone help me get started? Create a flowchart, in which you create an organizational structure for the education system for the federal, state, district, and school levels. I have

138. ## science

How could you distinguish one from the other? (a) CH3COOH and CH3OH? (b) C2H5OH and H2O?

139. ## MATH MIDDLE SCHOOL

The slash (/) line represents that the number is a fraction. divide: sqrt45 / sqrt81 = simplify: 7sqrt3 / sqrt5 = Multiply: sqrt7/sqrt8 X sqrt24/sqrt49 = Thanks for the advice regarding how to show square root symbol. Also thank for taking the time to help

140. ## calculus

Given that ∑(n=1 to inf) 1/(n^2) = (pi^2)/6, find the value of ∑(n=1 to inf) ((5n^2+6n+3)/((n^2)((1+n)^2))).

141. ## calculus

f(x)=cos(1/x) Find a sequence for x-values that approach 0 such that cos(1/x)=0.

142. ## hvac

what happens to the pressure at locations moving vertically up or down a ph constant-enthalpy line?

143. ## hvac

gas trapped in a reciprocating piston compressors clearance space expands at the beginning of the suction stroke what effect does this have on the system

144. ## alberga

3r-5s=-4 5r+3s=16 elimination method

145. ## hvac

when antifreeze is add to water the water specific heat

146. ## Science

If a 150 pound man walks onto an elevator. Suddenly it rises rapidly from the 1st to 14th floor. if the man steps onto a scale in the elevator during the rapid rise, he would weigh... A) 150 pounds B) More than 150 pounds C) Less than 150 pounds Please

147. ## engineering

I am studying Fire Science Engineering. I have a question concerning my homework. The question is A compartment measures 3 meters by 5 meters and is 2.8 meters high. A fire raises the temperature from 20 degrees C to 1000 degrees C. If the starting

148. ## Physics

A compartment measures 3.5 meters by 5.5 meters and is 3 meters high. A fire raises the temperature from 68 degrees F to 1500 degrees F. If the starting pressure was 1 atmosphere, what volume is present at the elevated temperature assuming the compartment

149. ## chemistry

Calculate the volume of 1.60 in milliliters that contains 6.00 of solute.

150. ## science

Health and wellness

151. ## stats

a candidate receives 60% of the N votes in an election, where N is very large. Compute the probability that he leads after a count of the first 100 votes.

152. ## math

10x^2+5 y^2-2xy-28x-6y+41=0 and 3x^2-2y^2+5xy-17x-6y+20

153. ## Written Analysis

I still need help with my assignment. Please show me examples of short paragraphs on discrimination(modern day) and outlining how I plan to find resources and evaluate my resources for credibility.

154. ## mgt/230

describe how managers when applying a leadership principles can contribute to a healthy organizational culture.. don't get it I have been trying to find infomation but can't figure it out

155. ## statistics

Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would

156. ## physical

Discuss the pros and cons of the following statement: “ Egalitarian companies are more innovative•Identify three organizations that you perceive as being innovative. ◦Identify the innovation and its impact upon each organization.

157. ## Math

If KL=3cm,KM=7cm andLM=5cm

158. ## Psychology

Kevin hates his job, his girl friend dropped him, and he had a headache this morning from staying up too late eating hamburgers and drinking beer by himself. He has decided to initiate a new attack today and take control of his life.He will fin a new job,

159. ## graphing

Can someone explain what quadrant this would be in and the domain and range. I have no idea how to graph it. G(x)= -3sin^-1 (2x)

160. ## college algebra

Find the bounds on the real zeros of the following function. f(x)=x^5-5x^4+8x+2

161. ## QNT

A sample of 100 students participate in a final exam. The mean score is 88 with a standard deviation of five (5). What is the standard error of the measurement of the mean?

162. ## calculus

let xy + x^2 = x find y'

163. ## quote a reference

im writting a essay for child care how do i quote a reference from a book can you give an example

164. ## Grammar

Select the sentence which is correctly punctuated. 1.A) He has a 150-pack-year smoking history. B) He has a 150 pack year smoking history. My answer is A. 2.A) The gangrene had spread to one-half of his leg. B) The gangrene had spread to one half of his

165. ## finance

how long will it take to double my investment with 2500 at 4% annually

166. ## xmgt216

what are the key control mechanisms? cause im supposed to identify some of the key control mechanisms and describe how management can aooly them to aid in achieving organizational goals?

167. ## Honors chemistry

how much is 100 grams of 16 carat gold?

168. ## calculus

Let 4xy^3 - x^2y= 5x - 6 - x^3 where y is a differential of X. Find y' in terms of x and y. I get: y'= -4y^3 - 2xy + 3x^2 -5 / x^2 -12xy^2 My answer handout shows the answer as positive. Which should it be, neg. or pos.? Thanks

169. ## history

who was Naqia queen of Assyria?

Q+ 5/Q=-6 Help me solve plese

171. ## chemistry

Hi everyone, Why are metals more reactive in acids? Thanks

172. ## Help

Simplify by removing factor of 1 7z-49/7z I have the answer as -7 is this correct

What are the disadvantages of using a contingent work force?

174. ## English

is there such a thing the "language" of percentages/surveys?