# Questions Asked onSeptember 26, 2007

1. ## physics

A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 18m/s. The cliff is 50m above a flat horizontal beach, as shown in Figure 3.20. How long after being released does the stone strike the beach below the

2. ## science

in a baseball-hitting contest at the office picnic, five men participated named: Biff, Carl, Fred, Marty, and Tom. Their last names in alphabetical order are Jenkins, Keech, McNabb, Miller, and Winslow. The distance that each man hit the ball in feet are:

3. ## physics

How long does it take an automobile traveling in the left lane at 60.0 km/h to overtake (become even with) another car that is traveling in the right lane at 40.0 km/h when the cars’ front bumpers are initially 100 m apart?

4. ## physics

Tom the cat is chasing Jerry the mouse across a table surface 1.5 m off the floor. Jerry steps out of the way at the last second, and Tom slides off the edge of the table at a speed of 5.0 m/s. Where will Tom strike the floor, and what velocity components

5. ## PHYSICS

you need to move a 500 kg crate of gazelle food from the garage along the 42 meter hall to the kitchen. If you apply a force of 1000 N at a 37 degree angle to the horizontal. How long will it take to move to the kitchen?(coefficient of static friction=.15,

6. ## Chemistry

I'm trying to find the dry gas pressure of H2 in mmHg. The barometric pressure is 765.3 mmHg, the vp of H20 is 23.76 mmHg and the gas collected was 25.6 mL. this is what i did. 765.3 mmHg - 23.76 mmHg - (25.6 Ml/13.6 mmHg) = 739.66 = 740 mmHg 93 sig figs).

7. ## Physics

A jumper in the long-jump goes into the jump with a speed of 10m/s at an angle of 30 degrees above the horizontal. Use g=10m/s. a) how long in the air is the jumper before returning to the Earth? b) How far does the jumper jump? for a) I got .001s as the

8. ## Trig

use a graphing utility to solve each equation, rounded to 2 decimal places 1. x^2 - 2sin2x = 3x 2. x^2 = x + 3cos2x

9. ## Math

1. A rectangular field with an area of 5000m^2 is enclosed by 300m of fencing. Find the dimensions of the field: A. 100m x 50m B. 75m by 75m C. 150m x 150m D. no solution Please explain answer. Thanks!

HI I'd like someone to check explain me the following questions related to the text and how to find them out The following text : The ARC company produces and sells cosmetics for women and girls. The company is owned by a brother and sitser who originally

11. ## math

Yvonne drove 11/2 hours to get to the airport. She arrived at 12.10A.M What time did she leave for the airport? Should she have lunch at the airport? why?

12. ## science

I can travel where there are no molecules, but never through a brick. I can travel through space, but never around a corner. What am I?

13. ## Physics

A long, straight wire carries a current of 48 A. The magnetic field produced by this current at a certain point is 6.5 10-5 T. How far is the point from the wire?

14. ## economics

Provide at least three real-world examples to illustrate the circular flow model of a market economy.

15. ## math-Algebra

A positive real number is 1 more than its reciprocal. Find the number: A. [1-sqrt(5)]/2 B. 2 C. [1+sqrt(5)]/2 D. No solution

16. ## calculus

find the exact value of the expression 1.logbase8(2) 2.logbase10(1.25)+logbase10(80) how do you start out ? i forgot all about logarithym.s please help with step my steps

17. ## Science

What would be some good pictures of qualitative observations? Quantitative? thanks in advance

18. ## language arts

directions: decide which form of the verb given in parenthases is needed write the correct form on the line identify the form you used by writing present,past,or past participle. sentance one: have you (speak)to anyone about your vacation plans? if you can

19. ## Biology

Has anyone done this experiment before? I need help with the final results. What would happen when I place 2 mL of hydrogen peroxide into 5 test tube, add manganese dioxide powder to the first one, then add sand to the second one, liver to the third one,

20. ## ap chem

Under constant-volume conditions the heat of combustion of glucose is 15.57 kJ/g. A 2.500g sample of glucose is burned in a bomb calorimeter. The temperature of the calorimeter increses from 20.55 C to 23.25 C. What is the total heat capacity of the

21. ## Managerial Economics

(1) The National Debt consists of what factors? (2) How does the National Debt relate to federal budget deficits? (3) Relate the deficit to trade imbalances.

HI I'd like someone to check explain me the following questions related to the text and how to find them out The following text : The ARC company produces and sells cosmetics for women and girls. The company is owned by a brother and sitser who originally

23. ## ACCOUNTING

ANSWER THIS SURVEY ASAP: 1. A compound entry in the general journal is made to close expense accounts. True False 2. The entry to transfer net income to the owner's capital account would include a debit to the owner's capital account. True False 3.

24. ## College Summit

Where can I find examples of good personal statement letters. Which can help me write mines

25. ## math

40 + 800 +9 =

26. ## Math- Circles

Suppose you have a perpendicular bisector of a chord passing through the center of a circle. The perpendicular from the center of the circle bisects the chord giving the chord two equal sides.Are the two sides guaranteed to be perpendicular?? Any help

27. ## Algebra 1

Lopez spent 1/3 of his vacation money for travel and 2/5 for lodging. He spent \$1100 for travel and lodging. What is the total amount of money spent? Directions: Write an equation to model the situation -------------------------- >< I am so sad. Plz help.

28. ## math

how would you regroup 4 tens to find the difference between 341 and 228

29. ## math

-2x + 4(2x - 9)

30. ## math

Can someone please show us how to show 1500 x 2.1? I can not for the life of me show my daughter how to come up with the correct answer she is just not getting what I am showing her.

31. ## Social Studies

What does Independent Invention mean?

32. ## physics

a car traveling at 7.0 m/s accelerates uniformly at 2.5 m/s TO REACH A SPEED OF 12.0 M/S HOW LONG DOES IT TAKE FOR THIS ACCELERATION TO OCCUR?

33. ## division

What is the quotient in division

if a demand curve given is q=5/p.. and no variables for q or p are given, then the elasticity would just be q/p right? (because one would not be able to calculate it without knowing the values) or am i wrong? Thank you

35. ## Math-Alg

2. Find the equation of the line which perpendicular to the line -2x + 3y = 32 and passes through the point (-4,-8).

36. ## Math-Alg

Simplify [(1-3y)/y]/(9/y^2)-1

37. ## math

Simplify sqrt(-8)times sqrt(-12)

38. ## Science repost (rocks) for Richard

science - richard, Wednesday, September 26, 2007 at 8:58pm how are organic and clastic rocks the same

39. ## math

Simplify sqrt(-8)times sqrt(-12)) A. 4 times sqrt(6) B. -4i times sqrt (6) C. 4i times sqrt(6) D. -4 times sqrt (6)

40. ## French for "Miche"

Salut! Voici le vocabulaire. If these work, I won't type them over! In the order you mentioned: 1. http://french.about.com/library/begin/bl_basic.htm (basic expressions) 2. http://french.about.com/library/begin/bl_numbers.htm (numbers) 3.

41. ## math-algebra

Solve: log 5 (8r-7) = log 5 (r^2 + 5):

42. ## math-Alg

5. Solve: log 5 (8r-7) = log 5 (r^2 + 5): A. r = 2 or r = 6 B. r = -2 or r = 6 C. r = -2 or r = -6 D. r = 3 or r = 4

43. ## spanish

how do you write the times like how long a class is(the class starts at 1:30 the class ends at 2:14)

44. ## math

Simplify: (8-6i)/ 3i: A. 6 B. (6 + 8i)/ -3 C. (6 + 8i)/ 3 D. 2 + 8i

45. ## math-algebra

7. A bag contains 5 red marbles, 6 green marbles, and 9 blue marbles. Suppose 3 marbles are chosen without replacement. What is the probability of choosing a red, a blue, and a red in that order?: A. 9/320 B. 5/152 C. 1/1280 D. 1/38

46. ## math-algebra

7. A bag contains 5 red marbles, 6 green marbles, and 9 blue marbles. Suppose 3 marbles are chosen without replacement. What is the probability of choosing a red, a blue, and a red in that order?: A. 9/320 B. 5/152 C. 1/1280 D. 1/38 Please explain answer.

47. ## math-alg

8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C 2.17945728 x 1011 2730

48. ## math-alg

8. In how many ways can 12 books be displayed on a shelf if 15 books are available?: * A. 455 B. 479001600 C. 2.17945728 x 1011 D. 2730

49. ## math-algebra

9. What is the vertex of the parabola y = x^2 + 4x + 1?: A. (2, -3) B. (-2, 3) C. (2, 3) D. (-2, -3)

50. ## math-algebra

10. What are the equations of the asymptotes for the hyperbola?: A. y = ±5/3x B. y = ±3/5x C. y = ±9/25x D. y = ±5/4x

51. ## math-algebra

10. What are the equations of the asymptotes for the hyperbola?: (x^2/9)-(y^2/25)=1 A. y = ±5/3x B. y = ±3/5x C. y = ±9/25x D. y = ±5/4x

52. ## algeb collage

solve the inequality,express using interval notation x3-5x2-14x>0

53. ## English

I need a peer reviewed journal source and a magazine article source on bureacracy model relating to Criminal Justice..thank you

54. ## math-alg

11. What are the horizontal and vertical asymptotes for the rational function y = 4x /(x-1)?: x = 0, y = 0 x = 1, y = 4 x = 4, y = 1 x = 1, y = 0

55. ## chemistry

the mass of an individual atom of fluorine is 19 amu. how many atoms would weigh a total of 1.7455x10-3g of this element if the mass of 1 amu is 1.6650x10-24

56. ## Physics

In a lightning bolt, 16 C of charge flows in a time of 1.5 10-3 s. Assuming that the lightning bolt can be represented as a long, straight line of current, what is the magnitude of the magnetic field at a distance of 24 m from the bolt?

57. ## math

x^3-6x^2>0 anser in interval notation

58. ## economics

Why is economic equity difficult to achieve in a free market economy?

59. ## math

x^3-6x^2>0 anser in interval notation

61. ## math-algebra

Simplify: [(4x^3y)(4^2xy)^-1]/(4xy^2) A. x /16y^2 B. 16x/y^2 C. x^2/16y D. y/16x^2

slipped is to fell as: dozed is to napped, read is to wrote, drank is to ate, or jumped is to rose?

63. ## Modern World Studies

1. What motivated Bismarck to enact reforms in Germany? 2. What kind of reforms were inacted in Germany and Britian? My answers: 1. Bismarck wanted Germany to be more united and when nationalism spread through Germany it helped Germany become a leading

64. ## math-algebra

14. The last term of an arithmetic sequence is 207, the common difference is 3, and the number of terms is 14. What is the first term of the sequence?: A. 165 B. 171 C. 249 D. 168 Please explain. thanks

65. ## math-algebra

15. Solve the following system of equations. x + y – z = -1 x + y + z = 3 3x – 2y – z = -4: A. (-1, 3, 3) B. (0, 1, 2) C. (1, 0, 2) D. (3, -1, 2)

66. ## math

What is addition property using the equation? (3+1) + 6 = 3 + (1+6)

67. ## Science

Can you help me explain the problem created by the over popolation of white-tailed deer? PLEASE HELP ME!!!!! Thank You!

68. ## English

Could someone let me know if I am on the right track? I need to find the predicate nouns. If there is none I need to write none. 1.The ancestors of the lnuit people were Asians. PN-Asians 2.They had probably crossed the Bering Sea in umiaks. PN-Bering Sea

69. ## algebra 3-4

im in a cal class but were reviewing algebra stuff now. and i have 1 more questions. it says. express the given quantity as a single loragithms 2ln4-ln2 so is it 2ln(2) please tell me if im getting the right answers and if im not then please show me how to

70. ## math

a straight line passing through the origin with slope m cuts the circle x^2+y^2-4x-2y-4=0 at A(a,b) and B(b,c). A. Find a quadratic equation whose roots are a and c ans: (1+m^2)x^2-(2m+4)x-4=0 B. if P is the mid-point of AB, find the coordinates of P in

71. ## Geography

What is urban exclusion? I think it is the spatial restrictions imposed on certain societal groups as a result of urban expansion/development by the better off people. Am I close?

72. ## arts

how to look for help in vb

73. ## Distillation Lab Calculations

I had to do a fractional distillation while my lab partner did a simple distillation. I had 2 unknown compounds which could have been any of the following: heptane, cyclohexane, toulene, octane, Well I think I went and boiled the solution a little too

74. ## com 215

Compare and contrast characteristics of nonverbal and verbal communication for audiences in relaxed situations (family members and friends) and audiences in tense situations (supervisors and instructors). List at least three items for each category.

75. ## Maths - Sets Notation

Hello I'm too confused in this A proper set is said to be the elements that are not all included in a set A subset however is said to be the elements that are all included of set Am I right and if not Can someone make it clearer !!!!

76. ## science

Doing review and can't find answer in notes: sun is approximately 4.5 billion years old what is it's classification?

77. ## science

what is the formula for calculating density?

78. ## math

I am a prime number between 40 and 50. If you add one to me, the sum of the prime factors of that composite number is 11. What number am I?

79. ## HHS-Public Policy Development

Can you provide a site with information on how human services agencies create their goals and objectives?

80. ## Math

What is not a compatible number to 76 A: 80 B: 75 C: 70 D: 60

81. ## French for "Miche"

Bonjour encore une fois! (Hello again.) You have mentioned nothing about vocabulary. Would you like some expressions, etc.? I can't wait until you learn the animals because I have some terrific sites for that. You used to be able to "hear" the sounds for

82. ## chem

what mass of hematite (fe^2O^3)is required to react with excess carbon and produce 2.845g of iron, if the % yield is 75.369 formula is 2fe^2O^3+3C=4Fe+3CO2

83. ## spanish HELP HELP

Indirect verbs me te le nos os los Hi I am trying to see if I did these right? We are asked to fill in the blank with the indirect object pronoun. It seems like each of these is le ( in the blank ) help so confused!!!! 1. Hoy mi madre ____ va a pedir al

84. ## criminal justice

list the actors in the court house of your local comunity. houston,tx

85. ## math

The number feared by Pythagoreans, since it lies halfway between the only two integers that can be both the perimeter and the area of the same rectangle?

86. ## math

The different wallpaper groups?

87. ## athletic

The number of stages, including the prologue, in the 2005 Tour de France?

88. ## math

The largest integer that is not a sum of distinct powers?

89. ## mathematics

The number of frieze patterns?

90. ## mathematics

The base for the hexadecimal system?

91. ## mathematics

The value of a score (as in "four score and seven years ago").

92. ## mathematics

One of two numbers that can be both the area and perimeter of a triangle whose side lengths are a Pythagorean triple?

93. ## calenders

The number of months in the Julian calender?

94. ## chem

Hi the following comes from my first homework assignment in AP Chemistry. I am totally lost on this question and don't know where to start. Thanks a lot in advance!!!!! A 0.1247 g sample of ascorbic acid, Vitamin C, was burned in a carbon-hydrogen

95. ## math

Mrs. Luna weighs 125 pounds. Mrs. Ropa weighs 150 pounds. How much to they eavh weigh on the moon?

96. ## Chain Rule

Any help would be much appreciated with the steps involved in each problem given. Thank you. 1) Find derivative if y =cot x + sin x 2) Find derivative if y = (3x+5)^8 3) Find derivative if y = x csc x 4) Find derivative if y = x ã3x + 1 (3x + 1 is under

97. ## biology

What are the four macromolecules?

98. ## biology

what are the monomers of lipids?

99. ## biology

how are amino acids put together and what does this make?

100. ## social studies

what are some historical key leaders of the philippines?

101. ## english

what is cultural blindness

102. ## Algebra 1

The attendance at a baseball game was 400 people. Student tickets cost \$2 and adult tickets cost \$3. ( Man those are some cheap tickets.) Total ticket sales were \$1050. How many tickets of each type were sold? DIRECTIONS- Write an equation to model this

103. ## social studies

How do you learn about people who lived long ago?

104. ## Math

I was given the following magic square and was to fill in the blanks. I know that all the rows and center diagonals are to add up to 111 and no number is used more than once (1-36). I just can't figure it out. I can get all but 2 columns and one diagonal.

105. ## Physics

A projectile is shot horizontally at 30m/s from the roof of a building 100m tall. Use g=10m/s^2. Choose + vertical direction to be pwards. a) determine the time necessary fot the projectile to reach the ground below b) determine the horizontal distance

106. ## Wife of Bath's

1. Characterize the Wife of Bath's " philosophy" of marriage. Is this philosophy logical from her point of view? How? 2. What elements of the Wife of Bath's tale characterize it as a romance? I don't understand what #1. is asking me so I have no idea how

107. ## Physics

a ball thrown horizontally from a point 40m above the ground,strikes the ground after traveling a distance of 9m. with what speed was it thrown? use g=10m/s^2 first i need to find the time so I used y=y_0 +v_0t +1/2at^2 -40=-1/2(10)t^2 t=8s then x=x_o+vt

108. ## Physics

When a football in a field goal attemp reaches its max height how does its speed compare to its inital speed? a)it's zero b) it is less than its inital speed c)it is equal to its inital speed d)it is greater than its inital speed since at the max height

109. ## Physics

A projectile is launched from ground level with an inital velocity of 50 m/s at an angel of 60 degreess aove the horizontal. Use g=10m/s. What is the max height reached by the projectile? I used change in y=voyt +1/2at^2 =50(2.4) + 1/2(=10) (2.5)^2

110. ## Math-Statistics

The population of six inhabited continents in 2000 was 6,279,000,000 and in 1950 it was 2,556,000,000. What is the % increase excluding Asia which pop. in 2000 was 4,028,000,000 and in 1950 pop. in Asia was 4,028,000,000?

111. ## Math-Statistics

Compare population per square mile in Asia to population per square mile in North America. Asia is 17,400 square miles with a population of 4,028,000,000 and North America is 9,400 square miles with a population of 305,000,000?

112. ## Repost for Ramiro Moreno

math 103 - ramiro Moreno , Wednesday, September 26, 2007 at 7:16am hey man I don't know how to do this problem please I need help 1 pt) Given the function , what is its vertex? (____,________) List its -intercept(s) as a comma separated list. If there are

113. ## ENGLISH

I need to find a magazine article on bureaucracy models (relating to criminal justice) thank you

114. ## Science

What is El Nino?

115. ## molecular biology

How did O'Donnell show that the sliding clamp complex actually slides along dsDNA providing processivity to DNA Pol III? I think he took dna, a primer, and one radioactive dNTPs, added Pol III that was isolated, ran a gel, and the conclusion was that it

116. ## Psychology

Why is it that children of older parents( over 40) are better adjusted, have closer ties with their parents, and are more social when they enter school than children of young parents( under 40)? Using theis question perform the scientific method and write

117. ## Card Trick

I know this isnt a school question but I want to know. My friend did this card trick. She shuffled the cards, showed me the bottom one and told me that was my card. Then she showed me a card from the bottom and said is this your card it wasn't then she did

118. ## Human Resources

What experience do you have (or have heard about) where poor job analysis impacted employees?

119. ## History

Explain the Mandate of Heaven. thank you! :)

120. ## algebra

There is a slow leak in your bike tire. The average rate of change of air in your tire is -2 pounds per square inch per day. The amount of air in your tire is now 70 pounds per sqsquare inch. Find the amount of air that will be in your tire in 5 days

121. ## History

How did the feudal system help Zhou leaders control their empires? thank you :)

122. ## Biology

Are lysosome the digestive center of a animal or plant

123. ## Andrew

What is a plastid

124. ## Math

her's my word problem: george is twelve years older than Jeannie. The sum of their ages in 5 years is 50. How odl is jeannie now?

125. ## Biology

Are viruses made of cells? Do they do homeostasis?

126. ## History/Health/Language

What was used to help diagnose people before the X-Ray was invented/discovered?

127. ## English

How can you use mutual in a good sentence?

128. ## Physics

what is the use of knowing the center mass of an object when making a calculation?

129. ## Algebra

I need help with this problem: Use the five properties of exponents to simplify each of the expressions. (y^5)^3(y^3)^2/(y^4)^4

130. ## science (biology)

Suppose that you are starting a long-term study of a population of annual, flowering plants isolated on a small island. Reading some recent papers has convinced you that global warming will probably cause long-term changes in the amount of rain the island

131. ## chemistry

i nned to know the reason for crystal formation in magnesium sulphate salt.

132. ## science

What is the difference between height and elevation?

paw is to cat as trombone is to instrument, hoof is to gallop, clock is to time, or stem is to daisy?

134. ## physics

Find the the force the person must exert on the 14.5 kg lawn mower to accelerate it from rest to 1.5m/s in 2.5 seconds?

135. ## PHYSICS

HEATHER AND MAT WALK WITH AN AVERAGE VELOCITY OF 0.98 M/S EASTWARD. IF IT TAKES THEM 34 MIN TO WALK TO THE STORE, WHAT IS THEIR DISPLACEMENT?

136. ## English

Can you check if these are metaphorical definitions. 1. Friendship is a electric magnet. 2. Cooperation is a huge smile. 3. Determination is proudly hitting a home run. 4. Happiness is going sailing in a new boat.

137. ## ALGEBRA

HAVING SOME PROBLEM WITH THIS . -2(X+7) IS THE ANSWER 14X? ALSO CAN YOU ADVISE ME THE RULES OF NEG AND POSITIVES ..IS 2 POSTIVES A NEG OR TO NEG A POS, I AM VERY CONFUSED ,,PLEASE HELP ME