# Questions Asked onDecember 1, 2011

1. ## english

Do I need a comma after the word book and does the sentence sound alright? When I first saw the title of the book I knew the theme would pertain to the importance of one’s identity.

2. ## ICD-9-CM

Can you please help me code this correctly. Cataract due to type I diabetes. The question calls for two codes. I am really struggling with this course. Thank you.

3. ## physics

A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

4. ## physics

A toboggan of mass 8.4 is moving horizontally at 18 . As it passes under a tree, 18 of snow drop onto it. We're covering Momentum and collisions, and I have no idea where to start here.

5. ## PREAP Physics

From what height would a compact car have to be dropped to have the same kinetic energy that it has when being driven at 100 km/hr?

6. ## Calculus I

Find the exact area of the surface obtained by rotating the curve about the x-axis. y = sqrt(1+5x) from 1

7. ## Calculus I

Find the exact area of the surface obtained by rotating the curve about the x-axis. y = sqrt(1+5x) from 1

8. ## algebra

Guy wire. How long is a guy wire reaching from the top of a 24ft ploe to a point on the ground 16 feet from the pole What is the exact length? what is the lenght approximated to three decimal palces?

9. ## organic chem

In the Titration of amino acids Glycine and Lysine Which data can be obtained with greater accuracy? 1.the pK values from the "legs" ? 2.the isoleric point from the point of inflection?

10. ## algebra

Darla is building a new deask. to make sure she had made a square corner, she measures 4ft. from the corner along one edge and 6ft from the corner long the othe edge . how long should the diaonal be between those two points if the corner is a right angle?

11. ## chemistry

The radius of an atom is about 10,000 times as large as its nucleus. If the atom were enlarged such that the radius of its nucleus was 1 inch, what would be the radius of the atom in meters? I need the formula to follow so that I can solve this problem.

12. ## algebra

how can i solve the inequality x+9>12 do i subtract -9 from both sides?

13. ## math

suppose the diameter of a circle has length d. the length of a chord is c and the length of the arc cut off by the cord is s. express sin(s/d) in terms of c and d

14. ## math

how do i write 3474.8 in scientific notation

15. ## Chemistry

Explain how the calculated molarity of the potassium permanganate would be affected by each of the following experimental errors. In each case, you must also state if the calculated molarity is higher or lower than the actual morality. a) Some sodium

16. ## calculus

Find the integral of x^3 + [(x^4)(tanx)] from -pi/4 to pi/4

17. ## Math

In a flower box there are nine red flowers and six white flowers. There are three times as many yellow flowers as white ones. How many flowers are there in all?

18. ## Math

What is a3-1=? The 3 post to be on top of the a a little bit

19. ## Math

In a flower box there are nine red flowers and six white flowers. There are three times as many yellow flowers as white ones. How many flowers are there in all?

20. ## grammar

Can you check this sentence, please? I know a little about helping injured and sick animals from volunteering at the social shelter. I look forward to learning more in school about how to treat animals.

21. ## chemistry

what are the products of the following reaction. CH3COOH+CH3CH2OH---> (there is an H+ above the dotted arrow line)

22. ## chem

what is the reaction when ethanol and ethanoic acid react in the presence of an acid catalyst.

23. ## statistics

one out of three adults has worked in the restaurant industry at some point during his or her life. In an office of 84 workers, how many of these people would you expect to have worked in the restaurant industry at some point?

24. ## science

a gaseous compound of carbon and hydrogen contains 80% carbon by mass, one dm3 of the compound at s.t.p weighing 1.35g. calculate

25. ## English

I urgently need you to check these sentences. Thank you. 1) I'm angry/annoyed/upset(?)/ furious with him for arriving late. I'm angry/upset about his behavior in class. I'm fed up with his behavior. 2) I'm dissatisfied/satisfied with my exam result. 3) I'm

26. ## myer park elementary

What is the analogy for honestly

27. ## English

I left out the following adjectives. 1)I'm cheerful about (I can't find an example). 2) She was depressed about the hard wprk.

28. ## science

what is the reaction when ethanol and ethanoic acid react in the presence of an acid catalyst

29. ## statistics

How do we compute sample size fluctuations? Suppose we have a population of 16000 and a sample size of 30, and the number of samples 1000, what will be the impact on population mean and standard deviation when the population is normally distributed? When

please check if I answered these questions correctly-they had to be in the past tense-not sure what number 6 is asking 1.¿Comó te sentiste ayer? Me sentí muy bien ayer. 2. ¿Adonde fuiste ayer? Yo fui al cine. 3. ¿Adonde fue tu mama ayer? Mi mama fue a

31. ## GP Caluculus

The third term of a geometric progression is 16. The sum of the third term and the fouth term is 8. Find (a)the first term and the common ration of the progression (b)the sum of infinity of the progression

32. ## physics

A student pushes on a desk with a horizontal force of 125 N and moves the desk 3.2 m directly across the floor. How much work is done?

33. ## physics

a sailor pulls a boat along a dock by a rope held at an angle of 55.5 with the horizontal. How much work is done if the sailor exerts a force of 345 N on the rope and pulls the boat 23.8 m?

What are the three elements of customer service, and how are they important to CRM?

35. ## GP Caluculus

The third term of a geometric progression is 16. The sum of the third term and the fouth term is 8. Find (a)the first term and the common ration of the progression (b)the sum of infinity of the progression

x+100=50

4x+5=17

3x+17=32

39. ## chemistry

20 g of CO2 is placed in 0.75l Bottle and sealed. what is the pressure in the bottle if the temp is 25C?

8r-23=-7

x/8=+11

x/+4=1/8

z/7=1/21

44. ## maths

use the inverse method to solve the system of linear equations -x +3y+2=1 2x+5y=3 3x+y-2z=-2

45. ## physics

A desk weighing 80 N rests on the floor. The coefficient of friction between the floor and the desk is 0.25. What is the frictional force between yhe desk and the surface of the floor?

46. ## physics

A 40 N force is applied to pull the desk horizontally to the right. What is the magnitude (the net force or the total force) acting on the deak ?

47. ## Chemistry

How many milliliters of 0.250 M sodium hydroxide are needed to titrate 35.0 mL of 0.425 M hydrofluoric acid?

48. ## Math

perform the indicated operations and simplify x-5/x-7-x-1/x+7+x-35/x^2-49

49. ## algebra

can you place 44 coins in 10 containers evenly and not have the same amount of coins in each container

85. ## statistics

130dan72 Ã§Ä±k

86. ## math

Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

87. ## Algebra

write 16.3 million in standard and scientific notation form ?

88. ## algebra

what's the percent increase in the sales from 2.08 million to 16.3 million?

89. ## Chemistry

3NO2 + H2O = 2HNO3 + NO How many grams of nitrogen dioxide are required to produce 5.89 x 10 to the 3rd power kg HNO3 in excess water?

90. ## Chemistry

what is the concentration of a weak acid with a pH of 3.25, if the Ka of the weak acid is 1.6 x 10^-7 ?

91. ## calculus(QUICK QQUESTION!!)

if f(t) were continious on the interval [-2,1] but youo were only given the function for t=-2,-3/2,-1,-1/2 ..,3/2 and 2, explain how would you apporximate f'(1)

92. ## Physics

A light ray travels from water to air. If the ray strikes the water/air boundary at an angle of incidence of 46 degrees, what is the angle of refractiob in air? (n water = 1.33)

93. ## english

1)From reading "Birches," we can conclude that the speaker is a(n): a) boy. b) birch tree. c) old man. d) girl on her hands and knees. 2) the tone of "A Simile" is: a) hopeful b) cheerful c)tense d) light

94. ## Physics

A farsighted person has a near point (closest point they can see clearly) of 200 cm. What power and type of lens will correct this condition and allow the person to read a book at 25 cm?

95. ## Algebra

how do you write a polynomial equation that represents the cost of renting a car for m miles.The cost to rent a car for a day is $15 plus$0.15 for each mile driven. help please!!!!

96. ## Physics

Light shines through a single slit whose width is 1.12 mm. A diffraction pattern is formed on a screen located 4.0 m away. The distance between the middle central bright fringe and the second dark fringe is 4.0 mm. What is the wavelength of the light?

97. ## Physics

A 5 meter diameter telescope is used to observe binary star systems. What is the minimum separation distance (perpendicular to the line of sight) for which the two stars can be resolved if they are at a distance of 1,000 light years = 10 m and they are

98. ## Physics

A 3.0 cmm high object is placed 10 cm from a concave mirror whose radius of curvature is 10 cm. Where is the image located?

99. ## algebra

16 times 3 over 4 what doe sit equal with it simplify

100. ## Physics

A convex mirror has a focal length of 15 cm. A 3.0 cm high object is located 10 cm in front of this mirror. Where is the image located?

101. ## geometry

in triangle FSH, angle f is 58 degrees and angle s is 64 degrees. in triangle LVQ, angle v is 64 degrees and angle q is 48 degrees are the two triangles similar?

102. ## biology

how many poeple prefer batteries than plugging a cable on the wall and why?

103. ## algebra

given the following quadratic equation, determine if it has a maximum or a minimum value. Then find the maximum or minimum value f(x) - -11x^2 - 2x - 7

104. ## Criminal Justice

How does a prosecutor determine which cases to pursue?

105. ## Alg. 2

Hello so I'm suppose to Determine whether the given binoial is a factor of the polymonial P(x) and here's the question (2x-4); P(x)=2x5-4x4+2x2-2x-4 I keep going over and over it and end up with ridiculous numbers -_- please help! thank you

106. ## science

a bouncing ball of mass 200g leaves the ground with a kinetic energy of 10J a)if the ball rises vertically, calculate the maximum height it is likely to reach. b)in practice, the ball rarely reaches the maximum height. explain why this is so.

107. ## arithmetic

find the whole to 565 tires 12.4%what numbers of tires.

108. ## geometry

Write the equation for the vertical line that contains point E(8, 6).

109. ## american history

I must provide a historical overview of the evolution of U.S. cities from colonial times to the present. could you please provide me with a starting point and some web resources. thanks.

110. ## Physics

The vector position of a 3.00 g particle moving in the xy plane varies in time according to the following equation. r1 = At the same time, the vector position of a 5.85 g particle varies according to the following equation. r2 = For each equation, t is in

111. ## General Physics

A 0.500 kg sphere moving with a velocity (2.00i - 3.50j + 1.00k) m/s strikes another sphere of mass 1.50 kg moving with a velocity (-1.00i + 2.00j - 2.80k) m/s. (a) If the velocity of the 0.500 kg sphere after the collision is (-1.00i + 3.00j - 8.00k) m/s,

112. ## chemistry

Using electron bookkeeping draw a Lewis dot diagram for NF2H and N2H2 determine how many electrons each atom should be assigned. Thanks Guys I really appreciate it, my assignment is due tonight and the test is tomorrow, could you explain it,thanks

113. ## sociology

Define urbanization and suburbanization. What are some ways that urbanization and suburbanization contribute to social problems?

114. ## chemistry

magnesium nitrate decompses in water and releases ammonia gas. If 355ml of ammonia is produced at STP, whit is the mass of Magnesim nitrate that reacted. Equation is Mg3N2+6H2O=3Mg(OH)2+2NH3

115. ## Statistics

The weights of trout in a certain river follow a normal distribution with mean 3 pounds and standard deviation 0.8 pounds. What proportion of trout weigh between 3.2 pounds and 4.8 pounds? a.) .3891 b.) .9972 c.) .9452 d.) .5865

116. ## Statistics

In the July issue of Archives of Neurology, researchers reported studying the smoking habits of 12000 people (3000 with Parkinson's disease and 9000 healthy people). They found that those who had smoked the most (the equivalent of a pack a day for 60

117. ## Statistics

True or False: If the value of the correlation, r, is zero then there is no association between the two quantative variables.

118. ## Geology

I need to write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of igneous rocks. Can someone help me get started with this and on the right track? Thanks

119. ## Geology

I need to write a 500- to 750-word explanation regarding the role of plate tectonics in the origin of metamorphic rocks. Can someone help me get started with this and on the right track? Thanks

120. ## convert derivatives of x,y,z, to r, Ɵ,z

convert derivatives of x,y,z, to r, Ɵ,z with chain rule? I want provment rules of converting rectangular derivatives to cylindrical derivatives and and also cylindrical to spherical.I know the rules but I cant prove EQUATIONS.thx alot

121. ## Need help

Studies have demonstrated that "latchkey children"

122. ## books

who saves Buck from impending death at the hands of Hal?

123. ## chemistry

An analytical chemist determines that an unknown sample contains 0.3452 mol of LiCl. How many atoms of chlorine does this sample contain?

124. ## algebra

For the polynomial below list each real zero and its multiplicity. f(x) = (x + 1/1)^4 (x^2 + x)^5 Really need some help with this! Have worked it twice and got two different answers!

284. ## Chem 101

At 600degrees Celcius, gaseous CO and Cl2 are mixed together in a 1.00 L closed container. At the instant they are mixed, their concentrations are CO=.25 mol/L and Cl2= .69 mol/L. After equilibrium is established, their concentrations are CO= .25 mol/L and

285. ## geometry

sam walkded15ft. up a ramp and discovered he was 9 ft above the ground. pam walked an additional 20ft up the ramp. how far above the ground is she?

286. ## Physics

a 59kg student jumped off the back of a 42kg sailboat, the boat was already travelling at 3.1m/s before she jumped. if she jumpped off with a speed of 2 m/s, how fast was the boat moving? thanks for any help

287. ## arrays an expanded algorithm

I need an example to help my son like 23x17

288. ## algebra

How do you determine whether/how many nonreal solutions an equation has? The statement: x^3 - 4x^2 - 3x + 2 = 0 has two nonreal solutions is false How do I solve this?

289. ## physics

a 25kg object moving with a velocity of 3m/s to the right collided with a 15 kg object moving to the left at 6 m/s. determine the velocity of the 25kg object after the collision if 15kg object a. continued to move to the left, but only at .3m/s b.

290. ## Physics

john and Sarah participated in a roller skating show. while 75kg john skated backwards at 3.00m/s, 60kg Sarah jumped into his arms with a velocity of 5m/s in the same direction. a. how fast did the pair roll backwards together? b. if john instead skated

According to the mere exposure effect, we are most likely to feel attracted to people when: a. they are very similar to us. b. they are very different from us. c. we have never met them before. d. we have met them on previous occasions. I think it is a.

292. ## chemistry

how many gram of uranium will radiate the equivelent energy output of a major earthquake measuring 10^19J? Energy from fission of uranimu 223 is 10^-12.

293. ## chemistry

A 210 g iron bar is heated and then placed in 100. g of water in an insulated container. The water temperature increases from 21.2 °C to 53.3 °C. What was the initial temperature of the iron bar? (Specific heats: cFe = 0.449 J/gK; cwater = 4.184 J/gK)

294. ## Environmental Science

the Nitrogen, carbon, phosphorous cycles roll in the tundra

296. ## Science

A ball bounces up 28 centimeters after being dropped from a height of 2 meters. What percent of the potential energy is converted into kinetic energy on the bounce?

2sin2x+1=0

298. ## English

In the sentence, Shenika looks tired,what part of speech is tired?

299. ## physics

need help quick: Magen's mass is 25 kg. She climbs the 4.5-m ladder of a slide, and reaches a velocity of 3.0 m/s at the bottom of the slide. How much work was done by friction on Magen?

300. ## computer programming

write a program that can read 10 interger values into an array and find the total for that array in the program , write 3 fiunctions: a function to read values , a function to find the total of element value and a function to print value

301. ## College Algebra

Suppose that you invest \$6,000 at 2% interest compounded continu- ously. How much money will be in your account in 5 years?

302. ## Chemistry

Explain how the calculated molarity of the potassium permanganate would be affected by each of the following experimental errors. In each case, you must also state if the calculated molarity is higher or lower than the actual morality. a) Some sodium

303. ## Math

Find the equation of the diameter of the circle x^2+y^2-6x+2y=15, which, when produced, passes through the point (8,-2).

304. ## computer programming c++

write a program that can read 10 interger values into an array and find the total for that array in the program , write 3 fiunctions: a function to read values , a function to find the total of element value and a function to print value

305. ## algebra

how do i solve x+9>12?

306. ## chemistry

assume you had a solution that contained a mixture of a silver ions and stronium ions. come up with three different reaction plans that would allow you to precipitat either the silver ion or strontium ion, but the other ion would remain in solution