# Questions Asked onSeptember 14, 2012

1. ## chemistry

calculate the lattice energy of sodium oxide (Na2O) from the following data: Ionization energy of Na(g): 495 kJ/mol Electron affinity of O2 for 2e: 603 kJ/mol Energy to vaporize Na(s): 109 kJ/mol O2(g) bond energy: 499 kJ/mol Energy change for the reaction

2. ## Physics

Mary needs to row her boat across a 100m wide river that is flowing to the east at a speed of 1.0m/s. Mary can row with a speed of .0m/s a) If mary points her boat due north, how dar from her intended landing spot will she be when she reaches the opposite

3. ## chemistry

What is the mole ratio of benzene (C6H6) to n-octane in the vapor above a solution of 15.0% benzene and 85.0% n-octane by mass at 25 degrees Celcius? the vapor pressures of n-octane and benzene are 11 torr and 95 torr.

4. ## Physics

Hearing damage may occur when a person is exposed to a sound intensity level of 90.0 dB (relative to the threshold of hearing) for a period of 9.0 hours. One particular eardrum has an area of 1.90 10-4 m2. How much sound energy is incident on this eardrum

5. ## math

Find the slope m of the tangent to the curve y = 5/ sqrt (x) at the point where x = a > 0. what is the slope?

6. ## geometry

Algebra BD bisects

7. ## economics

Suppose the price of widgets falls from $7 to$5 and consumption of widgets rises from 15 widgets a month to 25 widgets. Calculate your price elasticity of demand of widgets. What can you say about your price elasticity of demand of widgets? Is it Elastic,

8. ## physics

A water-skier is moving at a speed of 16.7 m/s. When she skis in the same direction as a traveling wave, she springs upward every 6.9 s because of the wave crests. When she skis in the direction opposite to the direction in which the wave moves, she

9. ## chemistry

A solution was made by dissolving 5.15 mg of hemoglobin in water to give final volume of 1.00 mL. The osmotic pressure of this solution was 1.97 x 10^-3 atm at 25C. Calculate the molar mass of hemoglobin. pi = iMRT i = 1 since hemoglobin is nonelectrolyte

10. ## chemistry

At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.

11. ## writing

Now that you've spotted the problems of shift of person and shift of number, revise the paragraph by removing these inconsistencies. Rewrite the paragraph, maintaining consistency by using first person plural when referring to the readers, and third person

12. ## Physics: Energy & Work Done

A spring of negligible mass has a force constant k = 1600 N/m. You place the spring vertically with one end on the floor. You then drop a 1.20 kg book onto it from a height of 0.8 m above the top of the spring. Find the maximum distance the spring will

13. ## physics

A wire tooth brace used by orthodontists. The top-most tooth is protruding slightly, and the tension in the wire exerts two forces at 16 º angle on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 19.5 N, what

14. ## Business Management-Principles of Management

I have some questions and answers. Can you please go over them and let me know how I did on it? 1. When a manager performs symbolic duties as the head of an organization, that manager is called a A. spokesperson. C. leader. B. figurehead. D. liaison. 2.

15. ## Physics

A partly-full paint can has 0.83 U.S. gallons of paint left in it. (a) What is the volume of the paint, in cubic meters? (b) If all the remaining paint is used to coat a wall evenly (wall area = 12 m2), how thick is the layer of wet paint? Give your answer

16. ## math

Maria ran in a 42 km marathon she covered the first half of the marathon from 0600 to 0715 hours and stopped and rest. She resumed running was able to cover the remaining distance from 0720 to 0935 hours. What was Maria's average speed for the entire

17. ## orgo

What is the pH of a 5.00E-2 M solution of acetylsalicylic acid, pKa = 3.52.

18. ## Physics

The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, a cheetah starts from rest and runs 46 m in a straight line, reaching a final speed of 83 km/h. (a) Determine the cheetah's average acceleration during the

19. ## Math Help

8. One nanometer is about 0.00000003937 of an inch. What is this number in standard notation? a. 3.937 x 10^-8 b. 3.937 x 10^8 c. 3.937 z 10^-7 d. 3.937 x 10^7 9. What is 3/8 written as a decimal? a. 2.33333... b. 0.375 c. 0.33333... d. 2.667 10. According

20. ## Physics

Which of the following best describes kinematics? a) Kinematics is a part of mechanics that involves the description of motion. b) Kinematics is the branch of physics that deals with the motion of objects and the action of forces on the objects.

21. ## Calc 3

Find the limit, if it exists. (If an answer does not exist, enter DNE.) lim (x, y)→(0, 0) of (x^2 + y^2)/[((x^2 + y^2 +64)^.5)-8]

22. ## Math

2. Find the product of 2 1/2 and 2/5. a. 2 2/10 b. 2 3/7 c. 2 4/9 d. 2 9/10 3. Which of the following makes the statement true? 1/5^0 = ? a. 1 b. -1 c. -5 d. 0 4. The area of a certian state is 840,000 square miles. What is this area in scientific

23. ## physics

An automobile accelerates from rest at 1.3m/s^2 for 19s. The speed is then held constant for 23s, after which there is an acceleration of -0.9m/s^2 until the automobile stops. What total distance was traveled? Answer in units of km.

24. ## physical sicence

how fast must a ball be thrown upward to reach a height of 12 m?

25. ## science; AP Chem

Dinitrogen oxide (N2 O) gas was generated from the thermal decomposition of ammo- nium nitrate and collected over water. The wet gas occupied 124 mL at 21◦ C when the atmospheric pressure was 752 Torr. What vol- ume would the same amount of dry

26. ## world history

The popularity of an individual Hindu deity was largely a reflection of a) its ranking by the Hundred Schools of Thought. b) the approval it received from Siddhartha Gautama. c) its pre-Aryan origin. d) the size of its pyramids. I think it's A but I'm not

27. ## chemistry

required to heat 38.0 g of copper (cu) from 122 degree celsius to 246 degree celsius

28. ## physics

Two bicyclists, starting at the same place, are riding toward the same campground by different routes. One cyclist rides 1120 m due east and then turns due north and travels another 1550 m before reaching the campground. The second cyclist starts out by

29. ## english

i need help please. What does Thomas F. Walsh, Jr's thesis propose about "Young Goodman Brown"? -because young goodman brown is a fictional short story it does not reflect any truth about life? -goodman brown enters the forest doubting the goodness of

30. ## math

Steven collected data from 20 college students on their emotional responses to classical music. Students listened to two 30-second segments from “The Collection from the Best of Classical Music.” After listening to a segment, the students rated it on a

31. ## AP Chemistry, Chem, science

Can anyone please help me with this problem?? =/ The reaction between solid sodium and iron (III) oxide is one in a series of reactions that inflates an automobile airbag. If 100g of sodium and 100g of iron(III) oxide are used in this reaction, determine:

32. ## physics

Light-rail passenger trains that provide transportation within and between cities are capable of modest accelerations. The magnitude of the maximum acceleration is typically 1.3 {\rm m}/{\rm s}^{2}, but the driver will usually maintain a constant

33. ## chem

calculate the pH of 5x10^-2 M of benzoic acid with pKa= 4.19

34. ## science; AP Chem

Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means that at 10.2 m below the surface, the pressure is 201 kPa; at 20.4 m below the surface, the pressure is 301 kPa; and so forth. If the volume

35. ## Precalculus

he distance between 2 points (x1,Y1) and (x2,y2) is given by d = square root (x1-x2)^2 + (y1-y2)^2 a - pick 2 arbitrary points in 3 dimensions, (x1, y1, and Z1) and (x2,y2,z2) and plot these points. Not that there are 90 degrees between the xy, xz, and yz

36. ## calculus

To find the equation of a line, we need the slope of the line and a point on the line. Since we are requested to find the equation of the tangent line at the point (64, 8), we know that (64, 8) is a point on the line. So we just need to find its slope. The

37. ## art

The Visual Elements: "Street, Dresden", 1907, oil on canvas by Ernst Ludwig Kirchner Describe the shapes in this painting. Are the shapes organic or geometric? Which ones? Describe how the shapes interact, or "touch" each other. Are the edges of the shapes

38. ## physical science

the acceleration of gravity on the surface of venus is 8.9 m/s2. would a ball thrown upward from venus return to the ground sooner or later than a ball thrown upward with the same speed on the earth?

39. ## physics

A cannon ball is shot straight upward with a velocity of 72.50 m/s. How high is the cannon ball above the ground 2.30 seconds after it is fired? (Neglect air resistance.)

40. ## Physics

14. A racing car accelerates uniformly through three gears, changes with the following average speed: 20 for 2.0 s 40 for 2.0 s 60 for 6.0 s What is the overall average speed of the car?

41. ## Math

How do i round off the decimal 0.9683 to the nearest tenth, hundredth, and thousandth

42. ## physical science

a force of 20 N gives an object an acceleration of 5 m/s2. (a)What force would be needed to give the same object an acceleration of 1 m/s2. (b) what force would be needed to give an accelerattion of 10 m/s2 ?

43. ## physical science

the 200g head of a golf club moves 40 m/s in a circular arc of 1.2m radius. How much force must the player exert on the handle of the club to prevent it from flying out of her hands at the bottom of the swing? ignore the mass of the clubs shaft.

50. ## Economics

The demand for cosmetic surgery is more elastic than the demand for Botox treatments, would this be true or false? My thoughts are true.

51. ## Math

You decide to build a pyramid out of wooden blocks. Each block must rest on the corners off 4 other blocks. If there is one block on top and 36 on the bottom, what is the total number of blocks you will need to complete the pyramid?

52. ## chemistry

A typical adult body contains 55 \% water. If a person has a mass of 61.0kg , how many pounds of water does she have in her body?

53. ## Physics

Highway safety engineers build soft barriers so that cars hitting them will slow down at a soft rate. A person wearing a safety belt can withstand an acceleration of 300m/s^2. How thick should barriers be to safely stop a car that hits the barriers at

54. ## Precalculus

The distance between 2 points (z1,Y1) and (x2,y2) is given by d = square root (x1-x2)+ (y1-y2)^2) a - pick 2 arbitrary points in 3 dimensions, (x1, y1, and Z1) and (x2,y2,z2) and plot these points. Not that there are 0- degrees between the xy, xz, and yz

55. ## calculus

Calculate the following integral: ∫ dx / x(1 - √x)^2

56. ## CSU Fresno

Give an example of languages L1 and L2 that satisfy the conditions (a) L1L2=L2L1, (b) L2 is a proper nonempty subset of L1, and (c) L2≠{ε}.

57. ## psy315

a psychologist at a mental hospital was asked to determine whether there was any clear difference in the length of stay of patients with different categories of diagnosis. looking at the last 4 patients in each of the 3 major categories , the results in

58. ## Physics

Runner A is initially 2.4 km west of a flagpole and is running with a constant velocity of 8.4 km/h due east. Runner B is initially 2.2 km east of the flagpole and is running with a constant velocity of 7.4 km/h due west. What will be the distance of the

59. ## college algebra

x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 i need to multiply some number and add to r3 answer quick!

60. ## earth

waste produced by people along the east coast of the united states has been dumped into the atlantic ocean where it is distriuted y surface ocean currents, Which coastel area is most liekly to become polluted by this waste?

61. ## Chemistry hnrs

what is the electron configuration of vanadium?

62. ## math

The "wapple" of a number is defined as the number of positive odd intergers less than that number. 1. what is the wapple of 19? 2.If the wapple of x is equal to 5, what is the wapple of x + 6?

63. ## Algebra..

Find the slope of the straight line that passes through the given points or state that the slope is undefined. Then indicate if the line through the points rises (left to right), falls (left to right), is horizontal, or is vertical. 1. (7, 4) and (1, 1) 2.

64. ## Physics

7. A cat pushes a ball from a 7.00 m high window, giving it a horizontal velocity of 0.20 m/s. How far from the base of the building does the ball land? (Assume no air resistance and that ay= g = 9.81 m/s2.)

65. ## Physics

A diver running 1.1 m/s dives out horizontally from the edge of a vertical cliff and 3.3 s later reaches the water below. How high was the cliff? How far from its base did the diver hit the water?

66. ## math 12

A)a shed, in the shape of a square based prism, is to have volume 800meters cubed. determin the dimentions of the shed, with the minimum surface area. B)how would the answer change if the minimum surface area did not include the bottem of the shed?

67. ## Math

two trains are traveling toward each other adjacent tracks. one of the trains 230 feet long and is moving at a speed of 60 miles per hour. The other train is 220 feet long and is traveling at the rate of 70 miles per hour. Find the time interval between

68. ## math

Lilly collects data on a sample of 40 high school students to evaluate whether the proportion of female high school students who take advanced math courses in high school varies depending upon whether they have been raised primarily by their father or by

69. ## Physics

Runner A is initially 2.4 km west of a flagpole and is running with a constant velocity of 8.4 km/h due east. Runner B is initially 2.2 km east of the flagpole and is running with a constant velocity of 7.4 km/h due west. What will be the distance of the

70. ## • psychology

• Discussion of factors that enhance or impede information flow in each step of the process in the human memory model

71. ## physics

A ladder 7.65 m long leans against the side of a building. If the ladder is inclined at an angle of 60.5° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building?

72. ## physics

A high fountain of water is located at the center of a circular pool as shown in the figure below. Not wishing to get his feet wet, a student walks around the pool and measures its circumference to be 39.0 m. Next, the student stands at the edge of the

73. ## orgoo

what are the products of the reaction: HC3OH + (Na+NH2-) ?

74. ## the exceptional child

physical disabilities affect young children's learning because: a.physical disabilities always affect thinking. b.cerebral palsy gets progressively worse. c. physical therapy takes time away from learning. d.their learning is primarily activity-based.

How do you determine the ymax? I know you have to use Q which I have values that were given to me as well as vo values but I am not sure what to do with these values.

76. ## the exceptional child

Transactional relationships exist in the families because: a.Parents tell their children how to behavior.b. children adult influence each other's behavior.c.parents cannot really learn from their children. d.teachers often make home visits. (2) special

77. ## physics

a ball is thrown upward what is its maximun height? its initial vertical speed is 8.1 m/s and the acceleration of gravity is 9.8 m/s . neglet air resistance . answer in units of m

78. ## Macroeconomics

Can someone point me in the right direction on how to solve this? 1. Suppose you have an economy with two factors of production (capital and labor), and suppose that capital's share of national income is 40% and that labor's share is 60%. Assume also that

79. ## Algebra..

HELP. Problems 4 - 7: Write an equation for the line in point/slope form and slope/intercept form that has the given condition. 4. Slope = 3/2 and passes through the origin. 5. x-intercept = 4 and y-intercept = -3

(-13) + (-1)

81. ## college algebra

x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 multiply some number by r2 and add result to r3(2) have to get o in r3 (1)- steps:------------------

82. ## computer science

Which of the following is *not* a reason why a transmission signal might be corrupted or lost? 1. The protocol for the transmission is TCP/IP. 2. The cabling does not have any kind of shielding. 3. The copper used to connect the systems is contaminated. 4.

83. ## Math

Which is greater, the greatest whole number with 5 digits or the least whole number with 6 digits?

84. ## Linear Algebra

Solve the initial value problem: xdy/dx+4y=7x^3-10x for y(1)=4

85. ## chemistry 121

A Canadian, driving in the U.S.A., fuels their car at a cost of US$3.72 per gallon (US). The current monetary exchange rate is 0.928 US$/Can$. The density of the fuel is 0.626 g/mL. What is the mass of Can$90.00-worth of this fuel?

86. ## chemistry

when you burn ionic and covalent compound using Bunsen burner,what you will see?

87. ## Geodetic Survey

a surveyor is trying to determine the change in hight h from the bottom to the top of a hill. If the height of instrument H is 4.5 ft the height of the object that he sights on the tower A is 6.5 ft and the zenith angle Z is 54deg 16' 25" determine the

88. ## the exceptional child

Most early childhood professionals children’s agree that the terms inclusion and mainstreaming: A. Both refer to exceptional children’s participation in the general education curriculum. B. Mean the same thing. C. Are two different concepts. D. Both

89. ## government s1

Despite their difference , the Founding Fathers all agreed that

90. ## Geography

Is this correct? What line of longitude forms the other half of the prime meridian? When joined with the Prime Meridian the 180 degree of longitude forms a complete circle

91. ## Physics

The barrel of a rifle has a length of 0.916m. A bullet leaves the muzzle of a rifle with a speed of 621m/s. What is the acceleration of the bullet while in the barrel? A bullet in a rifle barrel does not have a constant acceleration, but constant

92. ## physics

An airport has runways only 136m long. A small plane must reach a ground speed of 39m/s before it can become airborne. What average acceleration must the plane's engines provide if it is to take off safely from its airport? Answer in units of m/s^2.

93. ## Math

Hi I am not good with math. Please tell me how to differentiate mixed numbers, order of operation,subtraction, divide and multiplication etc. Thanks!

94. ## math

choose a natural between 1 and 20 inclusive. what is the probability that the number is a mutiple of 3

95. ## Calculus

lim[x:81,(x/(1+sqrtx) - 81/10) / (x-81)]

110. ## Calculus

I'm supposed to find the limit as x approaches infinity of (2-x-sinx)/(x+cosx). I've thought about using the squeeze theorem, but I'm not sure it applies here. Can someone point me in the right direction? Thanks.

111. ## Biology

If you added .1 M NaOH to 1 M HCO2H a few millimeters at a time what would happen?

112. ## chmistry

Compound: Concentration: Measured deltaT LiCl 6.00 g/kg 0.492 deg C HCl 4.00 g/kg 0.389 deg C NaCl 6.00 g/kg 0.356 deg C Determine the value of the vant hoff factor for each salt for the experimentally measured delta T value. (kf=1.86) I have tried to

113. ## college algebra

x y z rhs 1 1 2 3 2 1 6 3 0 3 4 13 i need to multiply some number and add to r3 and get o in r3 answer quick!

114. ## Pre-Calculus need help in an Hour before test

y=f(x+5/2) I timesd x+5 by 2 to get rid of 2 at the bottom and timesd y by 2. Then to get rid of 2 from y i divided it, and i got this. y=1/2f(x+5) however my teacher got y=f(1/2(x+5)) what did i do wrong?

115. ## math

find the average rate of change of F(x) on the intervals -1

116. ## physics

An object is dropped from a height H above the ground. This free-falling object requires 0.904 s to travel the last 34 m before hitting the ground. From what height H above the ground did the object fall? The acceleration of gravity is 9.8 m/s^2. Answer in

117. ## Health and Nutrition

What is protein?

118. ## Health and Nutrition

What is a complete protein?

119. ## Health and Nutrition

What is a vegetarian example of a complete protein?

120. ## Algebra..

f(x)= x^2+3 ; g(x)=3x-1 Check These Please? 1.(fg)(-1) = 5 2. (f o g)(1) =10 How would you solve this? 1. (g o f)(x)

121. ## Health and Nutrition

Explain the role of amino acids in building protein.

122. ## physics

A lightbulb emits light that creates a shadow of a ball on a wall. If the radius of the ball is 12.1 cm, and the radius of the shadow is 25.5 cm, and the ball is 2.09 m away from the wall, how far is the lightbulb away from the wall?

123. ## Health and Nutrition

Describe risks associated with protein deficiency.

124. ## Health and Nutrition

Discuss risks (three or more) associated with consuming too much protein.

125. ## Math

This is the same equation as before just with different numbers. y=yo + (vo sin Q) t - 1/2gt^2 This time the numbers are: 0 = 1.005 + (3.021 sin 30)t - 1/2(9.8)t^2 4.9t^2 - 1.5105 - 1.005 = 0 This is the part where I am stuck. Did I do this correctly? sin

126. ## Health and Nutrition

What are some healthy nutrient sources of protein?

127. ## Algebra 2

a tortoise crawling at a rate of 0.1 mph, the hare wants to rest 30 more minutes before chasing the turtle at 5 mph. how many feet must the hare run to catch the turtle?

128. ## physics

An object is dropped from a height H above the ground. This free-falling object requires 0.904 s to travel the last 34 m before hitting the ground. From what height H above the ground did the object fall? The acceleration of gravity is 9.8 m/s^2. Answer in

129. ## math

What is 77 percent round to nearest tenth of a degcree

130. ## Math

What is 0.000698 rounded to 2 significant figures?

131. ## chemistry

"The sun emits UV radiation that can have serious health consequences. In particular, so-called UVB radiation is mostly absorbed by the ozone layer in the upper atmosphere (altitudes of 10 - 50 km), but the part that reaches the earth can cause DNA

132. ## math

Kyra drove to visit her friend. She traveled 144 miles in 2 5/8 hours. What was her average speed?

133. ## pure maths

Factorize Xsquare-6x-3

134. ## Calculus

Check my work please? Determine if f(x)= (x^2-3x+2)/(1+x^2) has a horizontal asymptotes. If so, give the equation. So I took x^2 and divided everything by it. (x^2/x^2)-(3x/x^2)+(2/x^2) / (1/x^2)+(x^2/x^2) Cancelled out some x's and have -(3/x)+(2/x^2) /

135. ## Calculus with Analytical geometry

I'm stumped on this one. lim |x-1|sin(1/x-1) x->1

136. ## Calculus (Check)

This seems to easy. Check please. Find. Lim (x^2)-4 x->2 e I substitute in 2 (2^2)-4 e gives me 4-4 e So my answer is e^0 or 1.

137. ## math

The length of a field is three times its width. If the perimeter is 64 m, what is the width of the field?

138. ## math

Can u please help. The width of a rectangle is represented by w meters. Represent the length of the rectangle if it exceeds the width by 8 meters. Thank you

139. ## math

can you please help. If a plane travels 550 kilometers per hour, represent the distance it will travel in h hours. thank you

140. ## physics

A subway train starting from rest leaves a station with a constant acceleration. At the end of 7.94s, it is moving at 12.3864m/s. What is the train's displacement in the first 5.57388s of motion? Answer in unites of m.

141. ## Physics

14. A racing car accelerates uniformly through three gears, changes with the following average speed: 20 for 2.0 s 40 for 2.0 s 60 for 6.0 s What is the overall average speed of the car?

142. ## algebra 1

place parenthesis so answer = 14. 2x2+3 to 2nd power-4+3x5.

143. ## Physics

If a satellite is orbitting the earth 710km above the earths surface, and it's velocity is 7,406.8 meters/sec, what is it's cetripedal acceleration??

144. ## math

how much will Mary owe if she borrows \$2,000 at a rate of 6% for 2 years?

146. ## math

Francis ate 2/3 of a large pizza. Janette ate 1/4 of the same pizza. How much pizza did Francis and Janette eat in all?

147. ## chemistry

if an iceberg has a volume of 8660 cubic feet, what is the mass in kg of the iceberg?

148. ## Algebra..

Help? If f = (1, 2), (2, 3), (3, 4), (4, 5), g = (1, -2), (3, -3), (5, -5), and h = (1, 0), (2, 1), (3, 2), 1. f+g 2. f-g 3. f*g

149. ## Algebra..

How to Solve This? f(x)=|x-5| g(x)=(1)/(x) 1. h(x)=|(1)/(x) -5|

150. ## Algebra..

help? Give the slope and y-intercept of the given line and then graph it. 8. 2x-3y=6 9. y=-2x 10. y=3 11. x+2=0

151. ## Algebra..

Help ? Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x=-8 2. y=10

152. ## physics

A 316-kg boat is sailing 12.0° north of east at a speed of 1.60 m/s. 39.0 s later, it is sailing 36.0° north of east at a speed of 4.00 m/s. During this time, three forces act on the boat: a 31.4-N force directed 12.0° north of east (due to an auxiliary

153. ## Integrated Marketing Communications

Research any firm local or foreign and present a report and critique of their marketing communications

154. ## Algebra..

Write the standard form of the equation of the circle with the given center and radius. 1. center (-2, 0) and r = 3

155. ## Integrated Marketing Communications

develop an IMC plan for a business.

What is base measurement? thanks

X+12=2x+6

158. ## economics

the currency in Great Britain is pound and the price of a particular British car is 12,000. suppose the exchange rate is 0.67 per dollar. what iis the price of the British car in United States dollars?

159. ## math

"If the tire is 48 inches around what is its radius?

160. ## English

In the Tale of Two Cities question. Besides the foreshadowing of the blood bath to come, what does the people's response to the spilled wine show us?

161. ## Economics

The country of New Zealand decides to take 50% of its nation’s lottery money and use it to buy 1,000 acres of common grazing land in every county upon which any New Zealand shepherd may graze their sheepfor free, no strings attached. Based upon what you

162. ## Algebra 2 (Math)

If A=(0,-17), B=(4,-5), and C=(12, -1), what is the length of the altitude from C to AB

Can someone give me an example or template how to write a practicum proposal for mediation.

164. ## math

a piece of wire 3.5m long was cut into lengths each measuring 0.05m long.Calculate the number of pieces obtained.

165. ## chemistry

Find the potential energy, V(r), and the magnitude of the force, | F |, associated with: (a) the interaction between a proton and an electron separated by a distance of 0.529 Å (b) the interaction between the nucleus of Neon (Ne) and an electron separated

166. ## social studies

what are the 4 maps. phyical, population , polical waht is the last one please

167. ## Math

Which is the greatest number and why: .004 or .04

168. ## social studies

what are the 4 maps. phyical, population , polical waht is the last one please

169. ## Chemistry

what is 39.5 grams of HCl in moles?

170. ## Physics

A certain meter stick is calibrated in millimeters (the distance between two consecutive marks is ONE mm). A student measured the longest edge of a book and found that it was greater than 364 mm and less than 365 mm, but it was CLOSER to 365 mm than 364

171. ## Stats

Suppose X & Y are two independent stocks' returns with: E(X) = E(Y) =15% and V(X) = 144, V(Y) = 256 Problem 1. Buy half X and half Y, so w1 = w2 = 0.5 and Z = (X+Y)/2 Note: The answer says that the variance is 100 but I thought it would be 200. Since I

172. ## Biology

If you added .1 M NaOH to 1 M HCO2H a few millimeters at a time what would happen?

9 + x = 17 I know that x=8 but how did you get it Thanks

174. ## Chemistry

How many watts are in a kWh? Or how do you convert 30 kWh into joules/sec?

175. ## geometry

express 0.000 000 291 in scientific notation

9 + x = 17 I know that x=8 but I don't know how you figure it out