# Questions Asked onDecember 11, 2008

1. ## physics

A 1175 kg car carrying four 82 kg people travels over a rough "washboard" dirt road with corrugations 4.0 m apart which causes the car to bounce on its spring suspension. The car bounces with maximum amplitude when its speed is 24 km/h. The car now stops,

2. ## Math

a gasoline pump delivers 4 2/5 gallons of gas per minute. How many minutes will it take to fill a gas tank that holds 16 1/2 gallons?

3. ## physics

A firefighter with a weight of 722 N slides down a vertical pole with an acceleration of 3.11 m/s2, directed downward. (a) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter?

4. ## physics

An automobile can be considered to be mounted on four identical springs as far as vertical oscillations are concerned. The springs of a certain car are adjusted so that the oscillations have a frequency of 3 Hz. (a) What is the spring constant of each

5. ## Chemistry

How Many Molecules are contained in 0.25 moles of Fe?

6. ## algebra 1

what do you call a duck that steals?

7. ## physics

Consider that a coin is dropped into a wishing well. You want to determine the depth of the well from the time t between releasing the coin and hearing it hit the bottom. Suppose that t=2.059 s and assume the speed of sound in air is 330 m/s. What is the

8. ## physics

An object is hung from a spring balance attached to the ceiling of an elevator cab. The balance reads 60 N when the elevator is standing still. (a) What is the reading when the elevator is moving upward with a constant speed of 9.6 m/s? N (b) What is the

9. ## physics

In an electric shaver, the blade moves back and forth over a distance of 2.0 mm. The motion is simple harmonic, with frequency 118 Hz. (a) Find the amplitude. mm (b) Find the maximum blade speed. m/s (c) Find the magnitude of the maximum blade

10. ## Math

Ms.Daza bought 3 1/2 yards of fabric. She used 2/3 of the fabric to make a costume. How much fabric did she use?

11. ## Math

An aquarium holds 6 1/4 gallons of water. The water level has dropped to 4/5 of this amount. How much water should be added to fill the aquarium?

12. ## Chem

What is the difference between an unsaturated system and an electron deficient one?

13. ## physics

A 38 kg girl and an 8.4 kg sled are on the frictionless ice of a frozen lake, 16 m apart bu connected by a rope of negligible mass. The girl exerts a horozontal 4.7 force on the rope. (a) What is the acceleration of the girl? m/s2 (b) What is the

14. ## Chem

What is the difference between an unsaturated system and an electron deficient one?

15. ## physics

The figure below shows a "conical pendulum", in which the bob (the small object at the lower end of the cord) moves in a horizontal circle at constant speed. (The cord sweeps out a cone as the bob rotates.) The bob has a mass of 0.035 kg, the string has

16. ## physics

At what altitude above Earth's surface would the gravitational acceleration be 3.0 m/s2?

17. ## AP Human Geography

explain why economic sucess and political power are closely linked? What role does colonization play in the establishment of todays state?

18. ## Math

Julia studied math for 3 1/2 hours during the 4 days before her last math test. What was the average amount of time she studied each day?

19. ## physics

In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you

20. ## physics

The floor of a railroad flatcar is loaded with loose crates having a coefficient of static friction of 0.20 with the floor. If the train is initially moving at a speed of 47 km/h, in how short a distance can the train be stopped at constant acceleration

21. ## physics

A tourist being chased by an angry bear is running in a straight line toward his car at a speed of 4.38 m/s. The car is a distance d away. The bear is 25.4 m behind the tourist and running at 5.88 m/s. The tourist reaches the car safely. What is the

22. ## physics

In the figure below, a damped simple harmonic oscillator has mass m = 220 g, k = 95 N/m, and b = 70 g/s. Assume all other components have negligible mass. What is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of

23. ## biology

If an atom of sulfur (atomic number 16) were allowed to react with atoms of hydrogen (atomic number 1), which of the molecules below would be formed? a.S-H b.H-S-H c.H-S-H | H d.H | H-S-H | H e.H=S=H

24. ## Math

Meat patties are sold in packages of 12. Buns are sold in packages of 8. What is the least number of meat patties and buns needed to have an equal amount of each?

25. ## physics

a slide loving pig slides down a certain 44° slide in twice the time it would take to slide down a frictionless 44° slide. What is the coefficient of kinetic friction between the pig and the slide?

26. ## Social Studies

What is the name of the mixture of sand, lime, and water used as lubricant to help move stones?

27. ## school work

Factoring Polynomials and Simplifying Rational Expressions

28. ## MATH CHECK

COS[ARCSIN (SIN 3PI/4)] =COS[ARCSIN (SQRT2/2)] =COS [PI/4] = SQRT2/2

29. ## Chem: Mole and Avogadros Number

How many molecules are in the quantities below? 2.0 moles 0.75 moles

30. ## English

How high is Mt. Everest? It is 8,848 meters high. How tall is Mt. Everest? It is 8,848 meters tall. (Are both questions and answers correct?) 1. How high Mt. Everest is! Yes, it is. Yes, it really is. Yes, you are right. Are the responses all right? Would

31. ## Mat

Eduardo owned 6/7 of a family business. He sold 1/5 of the business to his son. What portion of the business does he still own? Is this correct 6/7 - 1/5 = 30/35-7/35=23/35

33. ## government

My question concerns the 21st president Chester Arthur, I need to know any controversies that occur during his term.

34. ## Math

What is the cardinal number for the follwing sets? 1). 101,102,103,104,....121 2). (1,2) (101,102) (0,105)

35. ## physics

Time standards are now based on atomic clocks. A promising second standard is based on pulsars, which are rotating neutron stars (highly compact stars consisting only of neutrons). Some rotate at a rate that is highly stable, sending out a radio beacon

36. ## managerial economics

Discuss the role of costs and demand in cost-plus pricing. Suppose that through experimentation you know that if you change price by \$6, the number units of the product you sell changes by 24. The current price for your product is \$10. The number of units

37. ## physiology

starvation decreases metabolic rate by as much as a. 10% b.20% c. 40% d.65%

38. ## physics

The mass of the block is 1.8 107 kg, the dip angle è of the bedding plane is 26°, and the coeffient of static friction between block and plane is 0.63. (a) Show that the block will not slide. (b) Water seeps into the joint and expands upon freezing,

39. ## Math

1) Solve for x and check Radical (x^2-10x)=3i 2) Simplify (5+ Radical 2)/(5-Radical 2) 3)describe the nature of the roots x^2-x-6=0 x^2+4x+29=0 4) Solve for x and check Radical (x^2 +4x +44) +3=2x I got 7 and -5/3 as answers, was not sure though

40. ## Math

What is the cardinal number for the following sets? A) 101,102,103,104,.......121 B) (1,2), (101,102), (0,105)

41. ## math

1).Write the first five terms of the sequence whose nth term is -10n-1. 1ST_ 2ND_ 3RD_ 4HT_ 5TH_

42. ## managerial economics

Discuss, in some detail, the following pricing concepts, especially their relevence for pricing decisions. a. Transfer pricing b. Joint product pricing c. Price leadership d. Bundle pricing

43. ## Chem.

2SO2(g) + O2(g) ---> 2SO3 It says that 12.0 L of sodium trioxide are produced at 100 degrees celcius. What volume of oxygen is produced? How would I go about doing this. I was going to use PV=nRT but I dunno the pressure so I can't find the moles. What do

44. ## math

could you tell me how to do the following problem 3 - 8 ______ 24 3/8 over 24

45. ## math 115 #14

Identify the base in the following application: The sales tax rate in a state is 7.5%. If you pay a tax of \$8.00 on an item that you purchase, what is its selling price?

46. ## Math

In 2002 there were more than 30,000 McDonald’s restaurants in the world. Of these, approximately 14,000 were in the United States. In Great Britain there were 1,116 McDonald’s franchises. The following data are taken from those 1,116 McDonald’s.

47. ## math 115 #8

On the blueprint of Lauren's new office building, the scale is 3 in. equals 8 ft. What will be the actual length of Lauren's office if it measures 6 in. long on the blueprint?

48. ## Math

Two cats are taking a walk. 1 cat runs off. three cats come back. 1 cat sits down. How many cats in all are there if 6 more cats came back with one of the cats being the one that ran off?

49. ## Math/Trigonometry

Is there a formula for sin(x/3)?

50. ## need help

Factor Completely (x-4(x^2+3) Perform the indicated operations (-(7x^3+6x^2-11x+13) +(19x^3-11x^2+7-17 Find The Product (2x-1)- (-x^2-4x+3)

51. ## Chem

I did this experiment where I filled a graduated cylinder with water. The I put a stopper on it and put it under water and removed the stopper. The with a modified lighter (that wouldn't release sparks) I added butane gas. I got the following results: mass

52. ## Math-Involing i's

1)What is the product of 5+ Radical (-36) and 1-Radical (-49) expressed in simplest a+bi Form? 2) Express Radical (-27) + i^22 + 3-Radical (-25) +5 Radical (-3) in simplest a+bi form.

53. ## 8th grade math problem

buck said "gee whiz, there must be between 10 and 20 animals in the yard!" "yes" said chuck. "there is one more cat than there are dogs, and there is one more squirrelthan there are cats." What are the greatest possible number of dogs in the yard??

54. ## PHYSICS

A troll on a 75m tall cliff throws a 35 m/s boulder at 35 degrees above the horizontal at a herd of sheep. What is the time of flight, the range and the maximum height for the boulder? HOW DO I DO THIS??

55. ## math

i need help on ratios, gears and teeth.ex. teeth on driving gear A-35 teeth on driving gear B-? gear ratio-2 1/2 to 1 what is gear B, and how will i figure this out?

56. ## Question

I have to do a powerpoint presentation on a career. Which job do you think is easier to do a powerpoint with? - computer animation - web designer - games developer Thank you for any input.

57. ## spanish

que slgnifica 'diario'? is it like daily or newspaper?: Escriba un editorial para el periódico local, expresando los buenos deseos del diario para el nuevo año.

58. ## BIOLOGY

Table Sugar can react with water to form 2 other compounds, glucose & fructose. But, when you add sugar to a glass of water the reaction is very slow - WHY? What would it need to speed it up?

59. ## S.S plse help

ok i really need help kind of like a SOS. i need a website that describes the flapper. and its like a news style of a woman more bold and stuff. i need to right an article about it plse give me some links or some facts about it thxs a million in advance.

60. ## math 115 #17

If \$5,600 is deposited into an account paying 5% interest compounded annually (at the end of each year), how much money is in the account after 3 years? This is what I get" 5600 X .05 =280 X 3 =840

61. ## Georgia Studies

I've been trying to figure this out but I'm having a very hard time: Which of these courts would handle cases involving wills and estates? A.juvenile court B.probate court C.magistrate court D.municipal court I'm pretty sure it can't be A. Any idea?

62. ## Religions of the World

What are the central beliefs of Islam, and how are they reflected in the "Five Pillars” (McInerney, 2003)?

63. ## people

marco polo's childhood

64. ## math 115 #7

Solve for the unknown: s/24.0 = 8.0/1.6

65. ## geollogy-radio metric dating and half lives

How would I go about solving this problem? a granite contains150 parts per million (by atomic proportion) ppma of 235 U and 1050 ppma of 207 Pb. Using the decay rate from above, how old is this rock? My teacher said the answer was 2100. How did he get

66. ## Geology

Scientists debate about the use of fossils as a tool to determine records of various events, such as the vanishing of the dinosaurs or the origin of our ancestors. Based on what you know of fossils from your textbook and other sources, discuss the role of

is the cos x

68. ## Math Prob

ok for changing the base of a log from 10 to e is there a formula?

69. ## school work

Factor the following polynomials 9-x^2 4x^2+81-36 4y2^+16y+16 x2^-25/x+5

70. ## need help

factor completely 4x2^-8x

71. ## Math

What is the L.C.M. of 9 and 27? Also the G.C.F. of 9 and 27?

72. ## University Physics (Cal-Based)

Calculate the velocity of a 20kg object that is dropped from a height h above the Earth, where h is very large compared to the radius of the Earth. The radius of the Earth is 6380 m and the mass is 5.94 x 10^24 kg.

73. ## Physics

Can someone please tell me the right answer to this problem. A troll on a 75m tall cliff throws a 35 m/s boulder at 35 degrees above the horizontal at a herd of sheep. What is the time of flight, the range and the maximum height for the boulder? I got the

75. ## MATH FOR TEACHERS

Write 75.42 in fractional notation.

76. ## math problem

a number is a common multiple of 7 and 11. It is the least such number with a sum of digits equal to 11. find the number

77. ## college-Organic Chemistry

Why is cyclooctatetraene neither aromatic or anti-aromatic? (I can explain why it isn't aromatic (4n+2 fails), but i can't explain why it isn't anti-aromatic)

78. ## math

On a set of bluepints the scale is half an inch=4feet Find the actual lengthof a room that measures 2.8 inches on the blueprint

79. ## math

A baseball team wins 11 of its 25 games with no ties. Write the ratio of wins to losses.

80. ## math 115 5-7

Write the proportion 5 is to 8 as 15 is to 24 5/8 = 15/24 correct?

81. ## math 115 5-7

Solve for the unknown s/24.0 = 8.0/1.6 ?

82. ## scince

You burn a pice of paper what are the proucts after it burns?

83. ## science

I have a hard time studying especially for science. Is there any where on the web i can find a good review sheet to print out I appreciate the help Ian strauss monroe NY 10950

84. ## physiology

starvation decreases metabolic rate by as much as a. 10% b.20% c. 40% d.65%

85. ## Math

What is the slope? 2x+5y=9 5x+2y=10 I got -2/5 and 5/2

86. ## math 115 #5

Is the rate1.2 inches of rain/5 hrs equivalent to the rate2.1 inches of rain / 8 hrs ? I said NO because: 1.2 x 8 = 9.6 2.1 x 5 = 10.5

87. ## Chemistry

Um how do i balance these word equations for chemistry... I think I'm suppose to look them up on a common table of ions and then I don't know wat to do ferric Oxid --> iron oxygen what exactly am i suppose to do please tel me thr throught process that's

88. ## science

what is the definiton of earthquake structure damage

89. ## math

find the area of this ring to the nearest square unit. Show your work. The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is... plz help!! thx.

Why do heuristics and biases play a major role in the success/failure of an IT project? What specific kinds are the most influential factors – in general and for your specific organization?

91. ## Biology

How many grams of the molecule in the figure above would be required to make 1 L of a 0.5 M solution of the molecule? H O | || (looks like C=O on the vertical) H-C-C-O-H | H a.29 b.30 c.60 d.150 e.342

92. ## Chemistry

What is the formula for? Do you just take the charges so they can equal out to each oter? Silver (I)acetate silver (I) bromide

93. ## Puerto Rican Studies

Jim Cummins' intervention model offers solution that could reverse the academic failure experienced by the Puerto Ricans students in American school which have existed for generations. Assess their history of integration in American society and their

94. ## more help

want to apologize for and to ms sue and all

95. ## English

Much of the 18th century writing reflects classical (Greek and Roman) influence. What are the principles that Classicism emphasizes? I believe it's society, the Englightenment, and the Age of Reason. Can anyone help me here? Thanks

96. ## Precal

How do you find the 6th root of -i?

97. ## ETH

Secondly, what constitutes an "economic opportunity"?

98. ## 125

Do you think he will considered a "bad president" if things do not change very much? Also, what things, do you feel, is the responsibility for the people(of the United States) to change?

99. ## physio

satiety would be induced by all of the following EXCEPT a. cholecystokinin b. naloxone c. morphine d.seratonin I know its not a or c, because those induce satiety. I'm stuck between b and c ...i think its b though

100. ## economics

Part One Case Study One The Challenge How do we maximize profitability, enjoy increased contribution margin while securing 50% to 70% of TRex business? How should we trade sales volume vs. sales discount? The Information • Our MVD division sells a

101. ## Math

wat r the factors for 125-50-54 and 48?

102. ## math

there are 3purple, 2yellow, 6blue, 1pink marbles ina bag. suppose one marbl is drawn at random. What is the probability that the marble is not yellow.

A donkey and a mule were carrying bags of corn. If the mule gave the donkey 1 bag, they would have the same number. if the donkey gave the mule 1 bag, the mule would have twice as many bags as the donkey. how many bags is each carryung?

You have 2 pails. One holds 4 gallons and the other holds 7 gallons. How can you go to the lake and bring back exactly 5 gallons of water?

105. ## managerial economics

Distinguish the differences between the traditional economic regulation and the newer social regulation. Are they costless to us and, thus, should be of little concern?

106. ## physics

A 72 kg man drops to a concrete patio from a window only 0.60 m above the patio. He neglects to bend his knees on landing, taking 2.0 cm to stop. (a) What is his average acceleration from when his feet first touch the patio to when he stops? m/s2 (b) What

107. ## Biology

Entire organish, with even their most delicat parts intact, have been found preserved(fossilized) in ________ and ____________?

108. ## physiology

neurons typicallyjoin axon to dendrite. how could this information be used to explain why some neurons need to receive input from many cells in order to "fire" a message? (this called a neuronal pooling)

109. ## algebra 2

How would 3x^2-27y^2 be factored completely?

110. ## Physics

There is a horizontal rod of length L and mass M. A point mass m is vertically above the rod at a vertical distance L/4 and horizontal distance L/3 from one end of the rod.Using The Riemann sum Integral,find the magnitude and direction of the gravitational

Explain the advantages and disadvantages of centralised and decentralised delivery systems. please could somebody help me with this

112. ## biology

Which part of an atom has a positive charge?

113. ## Math

Find the Sim -5+[6+(-8)+(-3)]

114. ## Math check

Find an equation of the line having the given slope and contaning the given point. m=-3(6,7) I got y=-3x-25 for the answear. Is this correct?

115. ## Math

How do I graph y=-3x

116. ## Math check

Find an equation of the line containing the given pair of points. (1,5) and (3,6) Is the answear y=1/2x

RSECERBAINR

118. ## Literature

In the story Frankenstein, Was it really the monstor who killed Victor's little brother William? Because that's what Victor says but at that point in the story the monstor has not told Victor he will get back at him. I know it's not Justine so it must be

119. ## psychology

List of Personality Traits

120. ## Math

How do find the value for n 30 over 60 = n over 100

121. ## Biology

What is needed for respiration?

122. ## Medical coding and billing

How can eliminating medical abbreviations reduce errors?

Can you give me the city build by a man that last name is the great?

124. ## college, structures

the rectangular steel bar shown supports a concentric load of 13000lbf. Both ends are fixed. If te modulus of elasticity is 29x10^6 lbf/in^2, what is the maximum length the rod can be without experiencing buckling failure? P=13,000 lbf | _________________

125. ## medical coding and billing

If HIPAA rules are stricter than state laws, which standard should you follow and why? What if the state law was stricter?

127. ## Math

A function is a rule, which assigns one and only one range element to each and every domain element? I want to answer that this is true but the word "every" is questionable. am i reading too much into this?

128. ## math

I need to know how to factor the following expression: x^6 - y^6 The teacher said that the answer is (x+y)(x-y)(x^4+x^2y^2+y^4) I need to know HOW to factor this. Does it have anything to do with making x^6 = (x^2)^3??

129. ## Chemistry

What volume will the following quantities of gases occupy at STP? 5.0 g of H(2) subscript=2 228.0 g of N(2) subscript=2

Why does a bouncy ball bounce in spite of gravity?

131. ## physics

A 72 kg man drops to a concrete patio from a window only 0.60 m above the patio. He neglects to bend his knees on landing, taking 2.0 cm to stop. (a) What is his average acceleration from when his feet first touch the patio to when he stops? m/s2 (b) What

132. ## com 140

Post your response to the following: What strategies can you use to incorporate effective visual elements into business presentations? Explain your answer. need help getting started

133. ## arithmetic

What are the multiples of 3

134. ## physiology

Ghrelin is postulated to ba a satiety factor. True or False. I think its false, but im not sure

what does "new moon" have to do with the book new moon

136. ## Phy

what can have a varying velocity and varying speed

137. ## Physics

what can have a varying velocity and varying speed

138. ## math

i am really stuck on this application problem in my quadratic equations unit... find the width of a uniform concrete path placed around a 30m by 40m rectangular lawn if the concrete has an area that is 1/4 of the lawn.

139. ## math 115 5-7

Is the rate 1.2 in rain/5hrs equivalent to the rate 2.1 in rain / 8 hrs ?

140. ## physics

Three vectors are given by = 4.5 + 2.5 - 2.0, = -1.0 - 4.0 + 5.0, and = 2.0 + 2.0 + 1.0. Find the following. (a) a · (b*c ) (b) a· (b+c) (c) a x( a+b)