# Questions Asked onSeptember 15, 2012

1. ## Physics

Three people pull simultaneously on a stubborn donkey. Jack pulls eastward with a force of 90.7 N, Jill pulls with 89.1 N in the northeast direction, and Jane pulls to the southeast with 175 N. (Since the donkey is involved with such uncoordinated people,

2. ## Principles of Biology 1

A team of students hypothesizes that the amount of alcohol produced in fermentation depends on the amount of sugar supplied to yeast. They want to use 5, 10, 15, 20, 25 and 30% sugar solutions. They propose to run each experiment at 40 degrees celcius with

3. ## math probability

Assume that Pr[E]=0.55,Pr[F]=0.55,Pr[G]=0.55,Pr[E∪F]=0.85,Pr[E∪G]=0.8, and Pr[F∪G]=0.75. Find: Pr[E' U F]; Pr[F' ∩ G]; and Pr[E ∩ G]

4. ## Physics

Stephanie hits a volleyball from a height of 0.80 m and gives it an initial velocity of 7.5 m/s straight up. a) how high will the volleyball go? b) how long will it take the ball to reach its maximum height? ( Hint: At maximum height, v = 0 m/s)

5. ## math

A piano manufacturer has a daily fixed cost of $1200 and a marginal cost of$1500 per piano. Find the cost C(x) of manufacturing x pianos in onde day. Use your function to answer the following questions: a)On a given day, what is the cost of manufacturing

6. ## physics

A child operating a radio-controlled model car on a dock accidentally steers it off the edge. The car's displacement 0.58 s after leaving the dock has a magnitude of 7.1 m. What is the car's speed at the instant it drives off the edge of the dock?

7. ## physics

a tire 0.500 m in radius rotates at a constant rate of 200 rev/min.find the speed and accelation of a small stone lodge in the thread(on its outer edge).

8. ## macroeconomics

Referring to the table in question 10, suppose improvement occurs in the technology of producing forklifts but not in the technology of producing automobiles. Draw the new production possibilities curve. Now assume that a technological advance occurs in

9. ## algebrs

Could someone please explain how to write an equation. Write an equation for the following transformation of y=x; a vertical stretch by a factor of 4. I'm not sure but this is what I tryed y=f(x) vertical stretch 4 y=f(x+4) y=4

10. ## computer science

Cyborg data type sizes. You have been given a job as a programmer on a Cyborg supercomputer. In order to accomplish some calculations, you need to know how many bytes the following data types use: char, int, float, and double. You do not have any manuals,

11. ## Math

Q) Hasan buys two kinds of cloth materials for school uniforms, shirt material costs him Rs 50 per metre and trouser materia l costs him Rs 90 per meter. For every 2 meters of the trouser material he buys 3 meters of shirt material. He sells that material

12. ## chem

Draw the three distinct geometric isomers of 2,4-hexadiene. i can draw what it is giving. but i do not get what the geometric isomers are? if you drew it a different way wouldnt that change the name?

13. ## Physics

A train traveling at v0 = 30.0 m/s begins to brake by applying a velocity-dependent instantaneous acceleration a(v) = α /(v u) m/s2, where α = – 20.0 m2/s3, v is the instantaneous velocity of the train, and u = 0.2 m/s. Determine the distance traveled

14. ## math

A playground is being designed where children can interact with their friends in certain combinations. If there is 1 child, there can be 0 interactions. If there are 2 children, there can be only 1 interaction. If there are 3 children, there can be 4

15. ## Physics

A small coin, initially at rest, begins falling. If the clock starts when the coin begins to fall, what is the magnitude of the coin\'s displacement between t1 = 0.300 s and t2 = 0.499 s?

16. ## algebra

Can someone explain how to solve this problem. A doctors office schedules 15 min appointments and half hour appointments for weekdays. The docyor limits these appointments to, at most, 30 hours per week. Write an inequality to represent the number of 15

17. ## physics

A test rocket is launched by accelerating it along a 200.0-{\rm m} incline at 2.24{\rm m/s^2} starting from rest at point A (the figure (Figure 1) .) The incline rises at 35.0 ^\circ above the horizontal, and at the instant the rocket leaves it, its

18. ## us history

i really need help with my thesis statement.... A society is characterized by similar values, shared institutions, and a common culture. Consider the following question: To what extent would it be accurate to say that the New England, Middle and Southern

19. ## algebra

Can someone please explain this qestion and how to solve. A doctors office schedules 15 min appointments for weekdas. The doctor limits these appointments to, at most, 30 hours per week. Write an inequality to represent the number of 15 min appointments x

20. ## College Stat

A pair of fair dice is rolled. What is the probability of each of the following? (Round your answers to three decimal places.) (a) the sum of the numbers shown uppermost is less than 5 and (b)at least one 5 is cast

21. ## Chemistry

The density of liquid oxygen at its boiling point is 1.14 \rm{kg/L} , and its heat of vaporization is 213 \rm{kJ/kg} . How much energy in joules would be absorbed by 2.0L of liquid oxygen as it vaporized?

22. ## Calculus Based Physics II

An air-ﬁlled spherical capacitor is constructed with inner and outer shell radii of 6.4 cm and 16.1 cm, respectively. Calculate the capacitance of the device. The value of the Coulomb constant is 8.98755 × 10 9 N·m^2/C^2 Answer in units of pF

23. ## algebra

write an equation for the following transformation of y=x; a vertical stretch by factor of 4. please help. can someone explain how to find answer

34. ## visual

"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 soft or hard? Do

35. ## Physics

A golfer hits a shot to a green that is elevated 2.60 m above the point where the ball is struck. The ball leaves the club at a speed of 16.5 m/s at an angle of 30.0˚ above the horizontal. It rises to its maximum height and then falls down to the green.

36. ## math

A certain mixture calls for 6mg of amoxycillin to 15 liters of water. How many liters of water would you need for 12mg of amoxycillin?

37. ## chemistry

If one atomic mass unit is equal to 1.6606 x 10-24 g, what is the mass in grams of 83549 atoms of Cu? (find in grams)

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38. ## Physics AP

A ball is thrown straight upward with a speed of +12 m/s. A) what's the ball's acceleration just after it is thrown? B) how much time does it take for the ball to rise to its maximum height? C) what's the approximate maximum height the ball reaches?

39. ## physics

Suppose the water at the top of Niagara Falls has a horizontal speed of 2.36 m/s just before it cascades over the edge of the falls. At what vertical distance below the edge does the velocity vector of the water point downward at a 38.8 ° angle below the

40. ## math

A pharmacist has 2 hectograms 55 grams of pills. Each pill weighs 1 gram 2 centigrams. how many pills does the pharmacist have altoghter?

41. ## visual

"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 soft or hard? Do

42. ## science; AP Chem

I don't know how to find the kpa for 35.78 m in this question. I know its a P1V1=P2V2 question, i just need the kpa for 35.78m pls! Question: Divers know that the pressure exerted by the water increases about 100 kPa with every 10.2 m of depth. This means

43. ## Physics

On a safari, a team of naturalists sets out toward a research station located 4.0 km away in a direction 42° north of east. After traveling in a straight line for 2.3 km, they stop and discover that they have been traveling 30° north of east, because

44. ## Physics

A 4.51-kg object is thrown vertically upward from the surface of Earth, where the acceleration due to gravity is g1 = 9.81 m/s2. The initial velocity is v1, and the object reaches a maximum height of y1. What is the maximum height, y2, if the object is

45. ## Math

While organizing his bookshelf, Michael noticed that he had 8 more science-fiction novels than spy novels. If he owns 26 science-fiction and spy novels, how many of each type of novel does he own? Explain how you found your solution.

46. ## physics

A gun shoots bullets that leave the muzzle with a speed of 341 m/s. If a bullet is to hit a target 171 m away at the level of the muzzle, the gun must be aimed at a point above the target. How far above the target is this point?

47. ## calculus

A hole of a radius of 1cm is pierced in a sphere of a 4cm radius. Calculate the volume of the remaining sphere. I know that the volume of a sphere with an exterior radius is of: V = pie(R^2 - r^2) dH where R^2 is the exterior surface area and r^2 is the

48. ## algebra

a rectangle has a length of 17 inches more than twice its height. If the perimeter of a rectangle is 304 inches, find its dimensions.

49. ## trig

(a) sketch an angle A in standard position whose terminal ray passses through the point (1,-4) (b) Find the exact value of the six trigonometric functions of A, (c) Let B be the reference angle of A. Find a point on the terminal rsy of B in standard

50. ## AP Physics

A monkey is hanging from a branch located exactly 24 meters along the ground from the hunter. The monkey is 14 meters above the ground. The hunter aims directly at the monkey and fires a water balloon at the monkey just as the monkey releases his grip. The

51. ## math

A. 1,3,6,10,___,___ B. 1, 1/2, 1/4, 1/8,___,___ C. 1,3,9,27,___,___ D. 8,7,5,2,___,___ E. 49,47,52,50,55,___,___

52. ## organic chem

looking at this h nmr spectra of 4 isomeric alcohols with the formula c5h12o, make a suitable structure for each spectrum and assign h nmr signals for each H in the molecule i.imgur. com/MTHt3. png

53. ## Database

Following report shows a grade report that is mailed to students at the end of each semester. Prepare an E-R diagram reflecting the data contained in the Grade Report. Assume that each course is taught by one instructor. MILLENIUM COLLEGE GRADE REPORT FALL

54. ## Physics

A glacier moves with a speed of 64 nm/s. How many years would it take for the glacier to move 0.8 km? Assume there are 365 days in a year.

55. ## Physics

An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +5.08 x 105 m/s to a final velocity of 2.63 x 106 m/s while traveling a distance of

56. ## Chemistry

How many H atoms are present in 7.2g of propane, C3H8?

57. ## math

from 1am to 5am the temperature dropped 16 degrees what was the average change in temperature per hour

I did my calculations wrong and now Im going to get a bad, bad, bad grade on my lab report I need to know what how to find the highth and width and radius of several things are help me plz!!!!

59. ## algebra

solve the inequality and write the solution set using interval notation. 4x+7

60. ## English

1. I have helped an old man to cross the street on a crosswalk. 2. I have helped a foreigner to find a post office. 3. I have helped a missing child to go back to his home. 4. I have helped an old lady to carry things. 5. I have helped a man to take a

61. ## Math

The length of each side of a rhombus is 10cm.if one of its diagonl is 12cm.find its area gve me ful sltn plz nd ans is 96cmsq.

62. ## algebra

y varies directly with x. When y = 20, x = 50. Find x when y = 36.

63. ## Finace

Wheel has just paid a dividend of $2.50 per share. The dividends are expected to grow at a constant rate of six percent per year forever. If the stock is currently selling for$50 per share with a 10% flotation cost, what is the cost of new equity for the

64. ## trig

my question is find all angles of theta and 2pi whose reference angle is alpha = pi/12. Give exact answers. i cannot for the live of me find this

65. ## physics

A car accelerates at 2.25m/s^2 along a straight road. It passes two marks that are 30.5m apart at times t=3.80s and t=4.90s. What was the car's velocity at t=0?

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. Physics - drwls, Saturday, September 15, 2012 at 1:29am Define your terms. I have no idea

67. ## Math

The area of field in the shape of trapezium is 217msq. If its altitude is 14m nd the length of one of its bases is 18m,find the length of its other base. Gve me ful sltn plz nd ans is13m

68. ## math

can you please help me represent the total nummber of calories in x peanuts and y potato chips if each peanut contains 6 calories and each potato chip contain 14 calories. thank u

69. ## Chemistry

Which element has no stalbe isotopes: 82Pb, 27Co, 51Sb or 90Th?

70. ## ap english

I really need help! Can i used this example for the device of contrast? I have to write a stylistic analysis essay and for one of my devices, im using a contrast. I have one paragraph already showing a contrast, but now i need another. I was wondering if

71. ## math

i am a 5 digit palindromic number. My third digit is 5 more than my fifth digit , my fourth digit is 2 times greater than my first digit. The sum of my digit is 14 What number am i?

72. ## math

how many combination of coins make 2.00 when given 2 quarters, 5 dimes and 18 nickels?

73. ## physics

An airplane with a speed of 88.0 m/s is climbing upward at an angle of 72.1 ° with respect to the horizontal. When the plane's altitude is 779 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly

74. ## chemistry

20.00 ml of 0.100F Pb(No3)2 (FW 331.2) are mixed with 15.00 ml of 0.125 F Nal (FW 149.9). Lead (II) and iodide form an insoluble salt pbl2 (FW 461.0) Calculate the concentration of each of the remaining ions after mixing. [Pb+2], [i-],[na+],[n03-]. ksp

75. ## 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

76. ## physics

A diver springs upward from a board that is 3.90 m above the water. At the instant she contacts the water her speed is 14.9 m/s and her body makes an angle of 60.3 ° with respect to the horizontal surface of the water. Determine her initial velocity, both

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

78. ## Math

The total area of two equal cicles is 308cmsq. Find the perimeter of the rectangle gve me ful sltn plz nd ans is 84cm

79. ## accounting

if i invest in municipal bonds that earn 5% interset or in taxable bonds issued by pepsi that pay 11% what is the tax rate at 15% and 30%; and what tax rate would there be indifferent between the bonds

80. ## math

What are the odds in favor of drawing a card lower than a 5 from an ordinary deck of cards?

81. ## Chemistry

Calculate the pressure and temperature at which 1.00 mole of CO gas will be in the same corresponding state as 1.00 mole of H2 gas at 2.00 bar and 30.0 degrees celsius. How do I approach this question?

124. ## Math

Find the altitude of a rhombus whose area is 48msq. And perimeter is 64cm plz gve me ful rltn nd ans is216cmsq. Nd 15cm

125. ## Math

The length of the diagonl of a rhombus are 18 nd 24cm.find its area nd side gve me ful sltn nd ans. Is 216cmsq. Nd 15cm

126. ## Math Fractions

Faridah had 2 1/2 kg of sugar. She used 1/8 kg for making cookies and 1 3/4 kg for making cakes. She used 1/2 of the remainder for making syrup. How much sugar had Faridah left?

127. ## Calculus

Calculate the following integral and determine whether it's convergent, or divergent. integral at [-3,0] x dx / sqr(9 - x^2)

128. ## Statistics for healt professional

Calculate the sampling distribution parameters U=80,O=10,s=8,n=25

129. ## daily compounding

What will \$25 at 7% compiunded daily for 30 days equal?

130. ## algebra 2

m=2p+2q solve for p

131. ## algebra 2

ax+bx=c solve for x

132. ## math

write a phrase for w/10?

133. ## geometry

if AB=CD, AB is 12-y, CD = 3x-4y, BD = 18, AC = x+y, what is x, y, and AC

134. ## science

I feel like this is really simple, but I don't know where to start with this question. Explain how to make 250mL of 20%sucrose solution.

135. ## Physical science

Will a ship loaded with beach balls weight more, less, or the same, as the ship empty?

136. ## World History

My topic for current event is sports. Can you help me find news about sport? Please post links.

137. ## Chemistry

What is 6.35 g divided by 6.02 x 10^23

138. ## US history

What were the essential elements of the settlement of Jamestown that allowed it to survive?

how music and radio shaped american culture and values?

140. ## Statistic for healthcare professional

calculate the sampling distribution parameters U=120,O=unknown,s+8,n=25

141. ## math

can u please help me a printig shop charges a 75-cent minimum for the first 8 photocopies of a flyer. additional copies cost 6 cents each. represent the cost of c copies if c is greater than 8. thank u

142. ## math

the number from which another number is being substracted

143. ## science

What are the in the brain surface? Both fissures and sulci? Or only sulci? I am confused.

144. ## math

6x+5y =31 ; x=-4

145. ## math

What is the sum of 667 and 23?