# Questions Asked onJanuary 24, 2012

1. ## Chemistry

Calculate the energy (in kJ/mol) required to remove the electron in the ground state for each of the following one-electron species using the Bohr model. (a) He+ kJ/mol (b) Li2+ kJ/mol

2. ## Physics

A +5.0 uC charge experiences a 0.44 N force in the positive y direction. If this charge is replaced with a -2.7 uC charge, what force will it experience?

3. ## Physics

The electric flux through each of the six sides of a rectangular box are as follows: phi 1= +150.0 N*m^2/C; phi 2= +250.0 N*m^2/C; phi 3= -350.0 N*m^2/C; phi 4= +175.0 N*m^2/C; phi 5= -100.0 N*m^2/C; phi 6= +450.0 N*m^2/C How much charge is in this box?

4. ## history

one distinction you couldn't overlook when critically evaluating the information provided about the boston tea party

5. ## physics - ohms law

how hot would a copper wire need to be for its resistance to be 2% larger than its value at room temperature (20 Centigrade)?

6. ## chem

a sealed cylinder of a gas contains nitrogen gas at 1.00*10^3 kPa pressure and a temperature of 20C. They cylinder is left in the sun and the temperature of the gas increases to 50C. What is the new pressure in the cylinder?

7. ## Chemistry

What method would you use to find the number of moles and mass in grams for each situation listed: a. 750 cm3 O2 at 27°C and 99.0 kPa b. 300 cm3 CO2 at -10.0°C and 103kPa

11. Often, the _______ the risk, the _______ the rewards. A. higher; higher C. higher; lower B. lower; higher D. faster; quicker 12. When the government of Indonesia imposes a tax on imported electronics products to help its young electronics industry

9. ## MATH

Thank you for taking the time to explain all the steps. ************************************ since we are ignoring air resistance, the fact that the ball has a weight of 16 lbs is irrelevant.

asked by Thank you Reiny
10. ## chem lab

does the voltaic cell(in exp) must be the same with the standard cell that we calculated based on the formula?

both mr.jones and mrs green earned 50,000 gross in 2009 yet, mr jones owed the irs 600 on his tax return . what do you think were the possible reasons for the difference in the result. explain

12. ## chem

the common metallic elements have been invetigated for their relative reactivities and have been arranged into what is called electromotive series. Explain the series in terms of choosing the suitable electrode in setting up an electrochemical series.

13. ## Math-Probability

Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1-p , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression

14. ## Statistics-Probability

Data collected on volcanic eruptions give a mean time between eruptions of 29 months. Assume these eruptions occur as a Poisson process in time, find the: (a) Expected number of eruptions during the five-year period beginning from the time you have read

Firm A and firm B have debt-total asset ratios of 35% and 30% and ROA of 12% and 11%, respectively. Which firm has a greater ROE? I think that it is firm B since it has more equity financing its assets.

16. ## Goodwill valuation - Accountancy

In case of Admission: Given a balance sheet as at 31 Dec 2008. The new partner was admitted on 1 Jan 2009. Goodwill was agreed at 2 years purchase and was to be valued in accorfance to the weighted average gross profit method for the previous four years

17. ## Goodwill Valuation 2 - Accountancy

In case of Admission: Given a balance sheet as at 31 Dec 2007. The new partner was admitted on 1 Jan 2007. Goodwill was agreed at 2 years purchase and was to be valued in accordance to the weighted average gross profit method for the previous four years

18. ## compose

unscramble words Caatant, liranCte

19. ## English

I urgenlty need you to chekc these sentences. Thank you. 1) As you are a scholar with an in-depth knowledge of Clil within a Comenius project, I would like to have your opinion about the objectives we should include in the project. 2) Could you let us have

20. ## manufacturing

In looking over the blueprint of a job, you see that 1/4" represents 1 foot. If the garage length is 28 feet, and the width is 16 feet, what would be the dimensions on the blueprint in inches?

21. ## English

I forgot to mention the following description. 1) He's wearing a pair of ripped, washed-out jeans under a black T-shirt with the image of a white skull on it. 2) The right-hand side of his hear is completely bald (because it has been shaved) where the

22. ## physics

Two small metal spheres of densities in the ratio 3:2 and diameters in the ratio 1:2 are released from rest in two vertical liquid columns of coeff. of viscosities in the ratio 4:3. When the viscous force on both of them is same, what will be the ratio of

23. ## English:Poetry

Hi beautiful people :) For English we need to select a poem and write a story based on the poem. The poem I have selected tentatively is William Wordsworth's "There was a Boy". What I was wondering was whether the boy jumped off the cliff, fell off the

24. ## physics

a 400 kg crate is to be lifted a height of 20 m in 30 s. Compute the work done and the power consumed in lifting the crate

25. ## physics

A uniform steel chain 20 m long and with a mass of 5 kg per m, hangs vertically. Compute the work required to wind it up

26. ## english grammar checking and double checking qu

Hi, I answered these questions about Ella Enchanted movie and I need help seeing if they are correct, and I really need help double checking my grammar, punctuation and spelling. 1. For the movie, who are the main characters? #1- For the movie, the main

27. ## physics

5. A 2.00-kg block hangs from a rubber cord, being supported so that the cord is not stretched. The unstretched length of the cord is 0.500 m, and its mass is 5.00 g. The “spring constant” for the cord is 100 N/m. The block is released and stops

28. ## science

how could measuring the orbit of a comet help scientists understand when it will next be visible from earth

asked by henry dennis jr
29. ## Physics

Mike pulls a 4.5 kg sled across level snow with a force of 250 N along a rope that is 35.0° above the horizontal. If the sled moves a distance of 63.8 m, how much work does Mike do?

30. ## algebra

(72÷(-4)+3(-4))/(5-(-5))

31. ## algebra

(72÷(-4)+3(-4))/(5-(-5))

32. ## algebra

(72÷(-4)+3(-4))/(5-(-5))

33. ## English/Science

urgently need to talk to one of your science teachers. In particular, I need help to define the objectives for our two-year Comenius project concerning biodiversity in water. This comparative study will be carried out in English. 1) As you know, it will

34. ## anatomy

the nervous system is comprised of what 2 tissue types? I have connective tissue but I don't know the other one

35. ## a & p

what are the structures that can be seen in elastic cartilage?

36. ## biology

Explain the importance of carbon's ability to form covalent bonds in straight chains, branched chains, or rings.

37. ## Physics

Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

38. ## Economics

2. Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter

39. ## English

What would the tone be for the poem "Harlem" by Langston Hughes?

40. ## algebra

if four individuals share \$270 in the ratio of 1:1:2:5, how much is the lagest share?

41. ## Math - solving quadratic equations with factoring

A person jumps off a 20m high cliff into water below. The height of the person above the ground at time t seconds is given by the equation h=-5t^2+30. How long does it take the person to reach the half way mark to the water?

42. ## chemistry

What is the balanced equation for 0.60M Phosphoric acid and 1.85M NaOH?

43. ## science

Distinguish Between terminal velocity and free fall. Be able to describe defective gravity on motion and state acceleration rates of falling objects ( due to gravity)

44. ## analytical geometry

the points M(6,-8) and E(8,6) are on a circle with radius 10 units. Determine the equation of the line equidistant from points M and E

45. ## medical office percedures

Work Place Application 1-Assume that you have been selected to order a new computer system for the physician. Clinic personnel include: three physicians, six administrative personnel, and four clinical assistants, plus you, the office manager. Describe the

46. ## Chemistry

A sample of carbon monoxide gas whose mass is 6.37 g is heated from 25 oC to 192 oC at a constant pressure of 4.12 bar. Calculate q (in J) for this process. I got an answer of ~1110J Calculate w (in J) for this process. I am unsure how to calculate work

47. ## English

Could you please quickly check this sentence? Thank you very much. 1) The project is mainly centred on the cooperation among students. About twenty students taken from different second classes (aged 17) will participate in the project. 2) I really hope

48. ## human behavior

teachers can improve a student's self-esteem by

49. ## physics

A stone is launched straight up by a slingshot. Its initial speed is 20.1 m/s and the stone is 1.30 m above the ground when launched. Assume g = 9.80 m/s2. (a) How high above the ground does the stone rise? (b) How much time elapses before the stone hits

50. ## science

Motion and newton's laws. able to calculate acceleration rates. Distinguish Between speed and velocity. And why velocity is important. Help me please I'm not understanding this. Thank you

asked by glenn help help help
51. ## Math

if 15 people met at a party and all shook hands with one another, how many hand shakes would there be? (assume no one shakes the same hand twice?

52. ## physics

A mass with an initial combined potential energy and kinetic energy of 10,000 joules is dropped onto a fence post to drive it into the ground. The post is driven 0.25 meters into the ground before it comes to rest with the mass sitting on top of the post.

(-3)3

54. ## British literature

from the dramatic monologue the reader learns that the duke is a: A.loving man B.talented artist C.generous man D.self-obsessed cruel man I put b. Talented man

55. ## math

How do I solve this? A mixture of nuts has a ratio of 5 parts peanuts to 3 parts cashews. How many ounces of cashews are in a 24 oz mixture? I am thinking 9 oz., but how do you write a problem to solve this

56. ## Account Recievables

You notice that your accounts receivable days outstanding has doubled in the first 6 months. Do you give someone a bonus or put him or her on probation? Why?

57. ## electrical physics

In Hydrogen atom , if an electron jump from n2 level into n1 level . Prove that the wave number (reciprocal of wave length) of emitted radiation is : 1/λ=me4 /8ε02h3c (1/n22 -1/n12)

58. ## math

don't know where to start on this one! a box contains 56 marbles. If the probability of randomly selecting a blue marble is 3/8, how many blue marbles are in the box?

59. ## calculus

Hi i need help for calcul with a Moivre's theorem: ( 1/2 ( -1 - i√3 )) ^3 thanks for your help

60. ## chemistry

How much energy (in kJ) is released when 16.4 g of steam at 121.5 degrees C is condensed to give liquid water at 60.5 degrees C? The heat of vaporization of liquid water is 40.67 kJ/mol and the molar heat capacity is 75.3 J/(K*mol) for the liquid and 33.6

61. ## Chemistry

A 10.0 mL volvume of Ultra Bleach is diluted in a volumetric flask. A 25.0 ml sample of this solution is analyzed accordign to the procedure in this experiment. Given that 33.75 mL of 0.135 M Na2S2O3 are needed to reach the stochiometric point, answer the

62. ## Chemistry

A sample of steam with a mass of .550 g and at a temperature of 1 degrees C condenses into an insulated container holding 4.40 g of water at 5.0 degrees C. Assuming that no heat is lost to the surroundings, what will be the final temperature of the

63. ## Calculus

Use the disk method to find the volume of the solid generated when the region bounded by y=15sinx and y=0, for 0

64. ## Calculus

Use the disk method to find the volume of the solid generated when the region bounded by 4= 1/(fourth root of (1-11x)), y=0, x=0, and x=1/22.

65. ## Calculus

Find the volume of the solid generated by revolving the following region about the given axis. The region in the first quadrant bounded by the curve y=x^2, below by the x-axis, and on the right by the line x=1, about the line x=-2

66. ## chemistry

a sucrose solution with a volume of B uL has a density of C g/ml. the solution is D % sucrose by mass. if i added x ml of this sucrose to another solution, how many grams sucrose did I add?a sucrose so

67. ## probability

normally distributed with a mean of 40 minutes and a standard deviation of 5 minutes. What is the probability that it will take more than 40 minutes? Answer

68. ## basic math

I need to convert 40mg/mL to 5mg/mL with distilled water. How much distilled water would I use to do this?

69. ## Math - Statistics

Eight people in a room have an average height of 66 inches. A ninth person enters the room. How tall would he have to be to raise the average height by 0.5 inches?

70. ## physics

what is the energy transformation when a cart is pushed and rolls along a smoothfloor it hits a rough patch on the floor and slows down. it then falls off a set of staris hits the ground and stops

71. ## math

there is 2 freshmen, 4 sophomores, 8 juniors, and 15 seniors. A local television station wants to interview 8 students from the team. How many different ways can exactly 4 seniors and 4 juniors be selected for the interview?

72. ## Statistics

Suppose that the average annual salary for city employees is \$36,000 with an SD of \$12,000. The city council decides to give everyone a raise of \$400 per year. What is the new average salary and the new SD?

73. ## us history

How did Roosevelt deal with France in the beginning of world war 11

74. ## physics

An equilateral triangle with sides 2 m each has a charge of 30 μC at each of its three corners. Determine the electric field at a point 5 m above the center of the triangle.

75. ## Chemistry

Calculate the density of 150g of a 25% by wieght solution of sodium chloride dissolved in water and the volume of solution is 145ml.

Select an organization with which you are familiar and discuss the impact of that organization’s level of social responsibility on a stakeholder group of your choice.

77. ## Calc

analaze the graph of y = 2/ (x^2-9) y-intercepts: ____________________ vertical asymptotes: ____________________ horizontal asymptotes: ____________________ increasing intervals: ____________________ decreasing intervals: ____________________ relative

78. ## chemistry

how many grams of sodium are used to prepare 50 boxes of crackers? sodium per serving is 140mg, serving size is .50 oz for 6 crakers. i got 112g and the answer is suppose to be 110g and i cant figure out how to get 110 thank you

79. ## trig

If the line OP of radius and(x,y) is rotated through a certain angle about the oringin

asked by Makhaya khoza
80. ## Calculus

what is the inverse function of f(x)=-[sqrt(25-x^2]

81. ## English

I urgently need you to check this part for me. Thank you very much for your cooperation. 1) I go on the internet every day to conduct research on various school subjects. I normally go on google as a search engine to find answers to my homework. 2) I

82. ## science

What effect will the current governmental initiatives that focus on expanding health care coverage to more Americans have on health care costs and health care services in the United States? What would you add or subtract from the recently approved

83. ## math

What is the value of |-3-10|? -13, -7, 7 or 13

84. ## math

Mr noonan has \$2 million budgeted for costs related to filing a movie on location. He estimates the costs to be c = \$108.000 + \$175.000 where c = costs in dollars and n = number of days. what is the greatest number of days he can film on location and

85. ## math

DETER MINE THE PRODUCT OF THE FOLLOWING.1.(3Y+4X)(3Y-4X) 2.(p1/2Q)2 3.(A+BC)(2X-4B) 4.(X-1)(X2+2X+3) 5.(A+2B)(-3A2+2AB+2B2)

86. ## physics

assign units and determine net forces in a situation.

87. ## calc

y = 4x -4 / x^2 vertical asymptotes: ____________________ horizontal asymptotes: ____________________ increasing intervals: ____________________ decreasing intervals: ____________________ relative maxima: ____________________ relative minima:

88. ## math

draw a graph showing a linear funciton

89. ## math

Mr Noonans daughter Kira is 5 feet tall. She casts a shadow that measures 216 feet long at the sme time that a sculture in the park casts a shadow 12 feet long. Which of the following is the approximate height of the sculpture?

90. ## math

DETER MINE THE PRODUCT OF THE FOLLOWING.1.(3Y+4X)(3Y-4X) 2.(p1/2Q)2 3.(A+BC)(2X-4B) 4.(X-1)(X2+2X+3) 5.(A+2B)(-3A2+2AB+2B2)

91. ## math

Mr. Noonan told Vic that his test had 38 problems worth a total of 100 points. Each test problem is worth either 5 points or 2 points. Vic wanted to determine ho many 2 points and how many 5 points questions are on the test.

92. ## physics

A 42.0 kg girl jumps on a trampoline. After stretching to its bottom limit, the trampoline exerts an average upward force on the girl over a displacement of 0.50 m. During the time that the trampoline is pushing her up, she experiences an average

93. ## 5th grade math

T = t-shirts & S = shorts T + T + S + S = \$42 T + S + S + S = \$45 HOW MUCH IS A PAIR OF SHORTS? EXPLAIN HOW YOU FOUND THE ANSWER.

94. ## math

which graphical representation would be most useful in comparing the change in average earning of male employees versus average earning of female employees over the course of a 50 year period?

95. ## math

what is equal to 12/40? 0.3%, 3%, 12%,or 30%

96. ## math

what is 18x5.25

97. ## math

i need the solutions of s^3+〖116∙s〗^2+3360∙s+38=0 please.

98. ## 5th grade math

T = t-shirts & S = shorts T + T + S + S = \$42 T + S + S + S = \$45 HOW MUCH IS A PAIR OF SHORTS? EXPLAIN HOW YOU FOUND THE ANSWER.

99. ## physics

What is the relative density of Al=2700 and H2O=1000kg

100. ## math

Mr. Browne bought six shirts at the same sale. They had been marked \$31 each. How much did he save on the six shirts?

101. ## math

Owners of SUVs need to know the miles per gallon every month. Given the amount of money spent to fill the gasoline tank, the number of miles driven since the last time the tank was filled, and the price per gallon, develop a computational model that

102. ## physics

if a car goes from 10 m/s to a full stop,then its change in velocity is 10m/s.if it decelerates at a rate of 2.5 m/sec square,it will take 4 sec to stop.how far this car will travel when braking to a stop?

103. ## Pre-Algebra

6y+8=-3y-28 Here is what I did 6y+8-8=-3y-28-8 6y=-3y+20 6y-(-3y)=-3y-(-3y)+20 3y/3 = 20/3 y=6.66666666667 what did I do wrong

104. ## physics

if a car goes from 10 m/s to a full stop,then its change in velocity is 10m/s.if it decelerates at a rate of 2.5 m/sec square,it will take 4 sec to stop.how far this car will travel when braking to a stop?

105. ## Physics

A shotputter throws the shot with an initial speed of 16.0 m/s at a 43.0 angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.10 m above the ground.

106. ## algebra

on average a child grows 2.5 inches per year from age 2 until adolescence. write an equation that shows how to calculate the height h of a child given the number of years y since age 2 if the child is 33 inches tall at at 2?

107. ## math

Find the slope of the tangent line to the curve (x + (e^-x))^2 at (0,1)

108. ## spelling

What does v/cv and v/va mean

109. ## Calculus

Astronomers have a mathematical model for the orbital speed of the stars as a function of their distance x from the center of the galaxy: V(x) = 350x/(1+(x^2))^(3/4) where x = 1 for 10,000 light years, x = 2 for 20,000 light years. At a distance of 10,000

110. ## physics

the person p walks at 4m.s west relative to the boat b as the boat is moving at 30 east relative to the land l.what is the reference frame of an observer standing on the land?

111. ## math

Ang and Meryl have a total of 2 model airplanes in their collection. Meryl has 6 moreplanes than Ang. Which equation could be solved to find a, the number of planes Ang has? a+6=24, a+6a=24, a-6=24, or a+a+6=24

112. ## world history

What Japanese art form, meaning "pictures of the floating world," was created using woodblock prints and greatly impacted Western art, particularly Impressionists in Europe and America? I say haiku

113. ## Chemistry

An aqueous solution is 8.50% ammonium chloride, NH4Cl, by mass. The density of the solution is 1.024g/mL. Calculate the molality, mole fraction, and molarity of NH4Cl in the solution. I know the formulas needed but I'm not sure where to start. M = moles

4(m+7)=6m+58

115. ## Pre-Algebra

(-e-10)=-5(e-12)

116. ## Social Studies 7R

What are Advantages and disadvantages of British and Americans??? Please Help! I don't know what's the Advantages and disadvantages of British and Americans. Thank You! :)

117. ## Math

A model rocket is shot straight up from the roof of a school. The height at any time t is approximated by the model h=-t^2+3t+28, where h is the height in meters and t is the time in seconds. When does the rocket hit the ground?

118. ## Social Studies 7R Q2

Identify: (includes definition and purpose, where applicable) Battle of Lexington and Concord: First battle of the American Revolution. Minutemen faced... Please help I don't know the rest of them.

119. ## SOCIAL STUDIES

Unscramble these words ineniad tcain

120. ## Social Studies

Boone led many pioneers through the ____, arcross the Appalachian Mountains.

121. ## Math

The number of library books in a school increased by 20% after it bought new books in may. The number increased by another 20% after a bookstore donated 300 books in June. Find the number of books in the library before it bought new books in May.

122. ## world history

Select the Japanese figure of the feudal warrior society whose role was similar to that of the knight in Medieval Europe. I say emperor

123. ## statistics

Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0.

124. ## geometry

if angle aob=4x+15 and aoc=3x+25, find the degree measures of angle aob and angle aoc

From the paragrahph which type of trap does the pitcher plant use to catch its prey? There are also pitfall traps, which are very slippery when they get wet. An insect might accidently slip into one of these plants and fall into a deep pitcher filled with

126. ## Chemistry

Here is the picture I am given: h ttp://imageshack.us/photo/my-images/209/diatomics.png/ This is supposed to be at a constant temperature, the hint says it's endothermic because energy is used to break the bonds. I believe it is a constant volume so w = 0

127. ## Math

20 oz=___c 2.5?

128. ## Language Arts

I need to replace the ants in the sentence below with possessive pronouns. The sentence is: Ants are very strong for ants' size and can carry 25 times ants' weight. Should ants' size and ants' weight be replaced by the word their or its? Thanks..

129. ## world history

on july 14, 1789 a mob of people stormed a prison that held political prisoners, revolting against the injusticess of the governing party. in which country did this occur? I say France

130. ## Math

3gal 2qt=___qt I know that 1gal=4qts. So 3gal=2quarts?

131. ## geometry

Can someone explain how you get the answer b/15. Given the proportion a/b=8/15, what ratio completes the equivalent proportion a/8=?/?. I'm not sure if there is an equation or step you use to get the answer.

132. ## physics

if a cart is released from rest and it takes 28 seconds to travel down a 10 meter incline what would be the average speed of the cart

133. ## English

Writeacher, I need your help to write the English translation of the speech my principal will hold when meeting both the German and the French principals. Can you suggest to me "formal" sentences he will probably use when welcoming them, showing them our

134. ## Mouse Trap Cars

What is the history of the mousetrap cars?

135. ## math

I have a table with this info. plant growth: Week 1 - 1 inch, week2 -4 inches, week 3 - 6 inches, week 4 - 11 inches, week 5 - 14 inches Question is: would you expect the plants height to be 10 inches, 16 inches, or 30 inches at week 6? Explain your

136. ## math(stats)

sample of n=5 scores (8,0,7,5,5) make an estimate of the standard deviation by finding average distance of the smallest and largest distance from the mean

137. ## math

If one tank has an 80 x 80cm cross section; the other has a 60 x 60cm cross section. if I pour 100 litres of oil into the larger tank, by how much will the level of the oil in the smaller tank rise?

138. ## computer class

what is a e-commmerce

139. ## physics

how do you calculate acceleration if the values are the same at t=2 seconds and t= 4 seconds.

140. ## ELA

A preposition relates a noun or pronoun to another word in a sentence. A prepositional phrase begins with a preposition and ends with a noun or pronoun. Pick the prepositional phrase for each sentence 1. A young boy was frail and small for his age.

141. ## quadratic equations

Suppose you are an event coordinator for a large performance theater. One of the hottest new Broadway musicals has started to tour and your city is the first stop on the tour. You need to supply information about projected ticket sales to the box office

142. ## physics

A geologist finds that a Moon rock whose mass is 9.97 kg has an apparent mass of 6.40 kg when submerged in water. What is the density of the rock?

143. ## georgia studies

what are nathan deal's duties as governor for georgia

144. ## Math

In September the ratio of the amount Ray spent and the amount he saved was 4:1. In October, he got a salary raise. He in creased his spending by 25% but saved the same amount. Find the new ratio.

145. ## anatomy

name the structures that can be seen in elastic cartilage?

146. ## Science

A community has just built a street across a strike slip fault that has frequent earthquakes. How will movement along the fault affect the street?

147. ## Physics

A copper (Cu) weight is placed on top of a 0.24 kg block of wood (density = 0.60*10^3 kg/m3) floating in water. What is the mass of the copper if the top of the wood block is exactly at the water's surface?

148. ## Math

How many milligrams do you think are in a gram? Explain. I know 1 gram=1000 milligrams but I don't know how I should explain it

149. ## Business Finance

Erasers cost \$5 per carton and pencils cost \$7 per carton. If an order comes in for a total of 15 cartons for \$85, how many cartons of each were bought?

150. ## math 121

1. A college offers three different psycology . courses, four different history courses, and six different business courses. If a student is required to take one course in each of those three subjects, how many different ways are there for the student to

151. ## physics

A ship, carrying freshwater to a desert island in the Caribbean, has a horizontal cross-sectional area of 2800 m2 at the waterline. When unloaded, the ship rises 6.00 m higher in the sea. How much water was delivered?

asked by HELP ME
152. ## anatomy

the nervous system is comprised of what 2 Tissue types?

153. ## English

Please tell me where I can find Articles about Energy Resource and issues. Thanks!

154. ## Science

Is the meaning of an application in science 'how is it used in the real world'? Yes or No. If no, please write what the real definition is, in 6th grade language for me to understand.

155. ## precalc

find the solution of the equation in [0,2pi) cos^2x-sinxcosx=0

156. ## precalc

f(x) =pi/2-x g(x)= 5sinx/8+cos x find (gof)(pi/2) and (fof)(pi/2)

157. ## chemhelp

is LiCl toxic?

158. ## math

find the solution of the equation in [0,2pi) cos^2x-sinxcosx=0

159. ## science

How could measuring the orbit of a comet help scientists understand when it will next be visible from earth?

160. ## finite 2

A plant can manufacture 30 tennis rackets a day for a daily cost of \$2100 and 50 rackets a day for \$3000. Let y represent the cost and x represent the number of rackets. How much more does it cost to produce 31 than 30 rackets per day? Write your equation

161. ## chemistry

Can somone please explain how to do this problem: How many cubic centimeters of olive oil have the same mass as 1.00L of gasoline? the density of gas is .66g/ml and olive oil is .92g/ml Thank you for your help

162. ## math

(x) =pi/2-x g(x)= 5sinx/8+cos x find (gof)(pi/2) and (fof)(pi/2)

163. ## Chemistry

Calculate the energy (in kJ/mol) required to remove the electron in the ground state for each of the following one-electron species using the Bohr model. (a) He+ kJ/mol (b) Li2+ kJ/mol

164. ## calculus

The point on the curve for y = sqrt(2x+1) at which tangent is perpendicular to the line y = -3x + 6 is.... a. (4, 3) b. (0,1) c. (1, sqrt3) d. (4, -3) e. (2, sqrt 5) I'm not sure, but do you find the perpendicular slope (1/3) set that as dy/dx and solve

165. ## General Physics I

What is the spring constant of a 129N object the vibrates at a period of 4.98s?

166. ## math stats

how do i draw a histogram for the data (8,0,7,5,5)

167. ## calc

If f(x) = xe^-x then at x=0 is f increasing, decreasing, relative max, relative min or that f' doesn't exist? I'm not sure, but I think it's decreasing, relative max or doesn't exist but I really have no idea. Thanks for your help!

168. ## Business Finance

Please help!!!!!!!!!!! On November 1, 2009, Broom Company received a bank statement that showed a \$2950 balance. Broom showed a \$4010 checking account balance. The bank didn't return check No. 124 for \$1080 and check No. 138 for \$720. A \$3200 deposit made

169. ## Calculus

"Two cars are traveling along perpendicular roads, car A at 40mph, car B at 60mph. At noon, when car A reaches the intersection, car B is 90miles away, and moving toward it. At 1PM the distance between the cars is changing at what rate?" So lost! Please

170. ## grammar

Which is the correct verbal usage of the following sentence? I let it there while I stood and applauded or I left it there while I stood and applauded?

171. ## Calculus

Consider the curve defined by y + cosy = x +1 for 0 =< y =< 2pi.... a. Find dy/dx in terms of y. *I got 1/(y-siny) but I feel like that's wrong. b. Write an equation for each vertical tangent to the curve. c. find d^2y/dx^2 in terms of y. d. Sketch a graph

172. ## french

Quel âge ....................... (avoir) -vous? how do i answer that. i am 22

173. ## physics

a rock climber weights 550N and is carrying a backpack that weighs 50N. how much total work has been done after she climbs 12m

174. ## physics

A runner dashes from the starting line (x = 0) to a point 91 m away and then turns around and runs to a point 30 m away from the starting point in 25 seconds. To the nearest tenth of a m/s what is the average speed?

175. ## Science

The cube root of .000216 is: A. .6 B. .06 C. 77 D. 87 I think it's B

176. ## algebra

find the indicated measurement where r=radius, d=diameter,and c= circumference.d=18m,r= ?

177. ## math

frank tosses a baseball card into the air. the card lands face up 30 out of 50 times. how many times can you expect the card to land face up in the next 75 tosses?

178. ## algebra

Posted this question and part of the answer was incorrect. a) 4L/3 = 6 4L/4 = 18/4 L= 18/4 L= 9/2 b) 4= 3M/2 + 32 3M/2 = -32 + 4 3M/2 = -28 3M/2 * 2= -28*2 3M= -28 -2 3M= 56 3M/3 = -56/3 M= -56/3 ??? Can answer b be checked again please

179. ## math

what is the word form for 0.34

180. ## Graph

I tried to graph this line and for some reason it came out with all these different numbers on my calculator. x + y = 4

181. ## Math

the short side of an isosceles triangle is 16cm long increasing each side length by 24cm doubles the perimeter. how long are the other sides of the original triangle?

182. ## Social Studies 7R - Question Homework Check

What is the Proclamation of 1763???? My Answer: The Royal Proclamation of 1763 was issued October 7, 1763, by King George III following Great Britain's acquisition of French territory in North America after the end of the French and Indian War/Seven Years'

183. ## math

write a subtraction problem that has a difference of 1/6.

184. ## physics

A copper (Cu) weight is placed on top of a 0.24 kg block of wood (density = 0.60*10^3 kg/m3) floating in water. What is the mass of the copper if the top of the wood block is exactly at the water's surface?

asked by HELP ME
185. ## statistics

If a piece of toast falls off your breakfast plate, is it more likely to land with the buttered side down? According to Murphy’s Law (the assumption that if anything can go wrong, it will), the answer is “Yes.” Most scientists would argue that by the

186. ## ALG 2

What is the lat term, in a series of 10 terms with a common ratio of 2, a first term (a1) if 1 and a summation of 1023

187. ## 7th grade Lang. Art

Please find the synonym of this word: APPEAR List of words to choose from: animated brood culminate downright drone goad indulge literate loom luster miscellaneous oration peevish seethe singe unique upright verify yearn please help thank you

188. ## ALG 2

What is the first term of a geometic series with a summation of 800, 4 terms and a common ratio of 3?

189. ## english

what is the analogy for monkey if cardinal is to bird as monkey is to?

190. ## math

47.00 divided by 20%

191. ## ALG 2

Find the sum of the geometric series given.....(if their is no sum...state no sum) 3+9+27...

192. ## Physics

Assume that you havea mass of 65 kg. I you are standing on the surface of Earth, What is the force of gravitational attraction between you and the earth?

193. ## math

7/9 divided by 1/9=

194. ## Social Studies 7R - Q2 Help!

Identify: (includes definition and purpose, where applicable) Battle of Lexington and Concord: First shots fired between American and British troops, on April 19, 1775. The British chose to march to Concord because it was an arms depot. The one I wrote

195. ## Algebra

A carload of fraternity brothers leaves their house for a long weekend road trip. Two hours later a second carload of brothers leaves the same house and travels the same path. If the second car drives an average of 15 mph faster than the first, what is the

196. ## Physics

Find the mass of an object with the acceleration 15m/s^2 when an unbalanced force of 90.0N acts on it

197. ## math

Solve A = P + Prt for r, given that A = \$1175, P = \$500, and t = 9 years. Express r as a percent

198. ## MATH

I NEED HELP because i don't know what this question is and i am getting ready for a big test and the question is .A POSTER MEASURES 3 2/3 FEET BY 4 1/8 .WHAT IS AREA OF THE POSTER.

199. ## 6th math

8 cm, 5cm, 10cm, ?, ?, 35cm can you find the numbers for the question marks

200. ## Personality Psychology

what is the difference between distortion and displacement?

201. ## math

find each product by factoring the tens draw rectangles if you need to

202. ## algebra

if jimmy was 33 inches when he was 5 and he is now 14 and 55 inches how many inches did he grow per year

203. ## math

In a sixth grade class,1/5 of the students wear glasses. There are 6O students in the class. how many of them wear glasses?

204. ## prealgerbra

A car travels at a speed of 44 feet per second. What is the speed in miles per hour? Show all work

205. ## Language Arts

I have to replace the words "the bees'" with the correct possessive prounoun. In the sentence: Bees make honey for the bees' food. Would the correct possessive pronoun be "their" food since bees is possive? However in the sentence...A bee can always fly

206. ## math

Mariko walks into her dark room to pull socks out of the dresser. If she has 5 pairs of white socks, 3 pairs of blue socks, and 4 pairs of pink socks that are single (not matched up), how many socks does she need to pull out to make sure she ends up with 1

207. ## social studies

What document settled the argument of how each state would be represented in our central government?

208. ## math

if 1inch=75 miles then how many miles dose 2.7 inches=

209. ## World History

How did the ideas of John Locke later influence the American Declaration of Independence? Thanks -MC

210. ## Business Finance

The price of a hamburger increased from \$1.10 to \$1.59. What percent did the price increase?

211. ## Physics

A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds?

212. ## math

how to add |x| +4-x^2

213. ## math

how to add |x| +4-x^2

214. ## Math

When a tree 6.2 meters long casts a shadow 6.5 meters long, how long is a shadow cast by someone 2.2 meters tall?

215. ## Physics

A car accelerates at a constant rate from zero to 25.6 m/s in 10 seconds and then slows to 14.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the 15 seconds? What was the acceleration during the first 10 seconds?

216. ## Physics

A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel?

217. ## Spelling

what is the difference between a v/cv or vc/v pattern

218. ## Physics

A car traveling at 14 m/s accelerates at 2.11 m/s2 for 14 seconds. To the nearest meter how far does it travel? To the nearest tenth of a m/s, what is the final velocity of the car in the previous problem?

219. ## Physics

A passenger in a helicopter traveling upwards at 17 m/s accidentally drops a package out the window. If it takes 9 seconds to reach the ground, how high to the nearest meter was the helicopter when the package was dropped?To the nearest meter what was the

220. ## SS7R - HW Question Check

What is the Proclamation of 1763???? To control the colonists and prevent wars with Native Americans (such as the Pontiac War) the British passed the Act. Does that define it!!?!??! Please don't ban me, ignore me, and no rude comments thank you! I got this

221. ## Math: Absolute Value

What is the equation that gives you the answer: SS={x|(x≤4)V(x>6)}? I'm not sure...should it be: |x-1|≥5 or |x-1|>5 or something else?

222. ## SS7R - HW Check Q2 (this is a different qs.)

Identify Sugar Act. My Answer: 1764 Act that put a three-cent tax on foreign refined sugar and increased taxes on coffee, indigo, and certain kinds of wine. am I correct????

223. ## Math fractions

use multiplication to write three fractions equivalent to each given fraction. 1. 2/3 2. 3/5 3. 5/8 4. 9/10

224. ## Physics

A speeder traveling at 40 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 1.92 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?

225. ## personal finance

what would be the future value of 280,000 based on an annual interest rate at 6 percent?

226. ## Physics

How far to the nearest tenth of a meter can a runner running at 9 m/s run in the time it takes a rock to fall from rest 73 meters?

227. ## Physics

A golfer, putting on a green requires three strokes to “hole the ball.” During the first putt, the ball roles 5.0m due east. For the second putt, the ball travels 2.1m at an angle of 20 degrees north of east. The third putt is 0.50m due north. What

228. ## Physics

At a picnic, there is a contest in which hoses are used to shoot water at a beach ball from three different directions. As a result, three forces act on the ball, F1, F2, and F3. The magnitudes of F1 and F2 are F1= 50.0 N and F2 = 90.0 N. F1 acts under an

229. ## personal Finance

Pam Thompson is offered a salary of 28,000. The company gives annual raises of 6 percent. What would be pam,s salary during her fifth year on the job.

230. ## personal finance

calculating future value of retirement account in which you deposit \$2,000 a year for 30 years with an annual interest rate of 7 percent?

231. ## Honors Algebra 3-4

can the cubed root of 15x^2, over 3 be simplified any more. (original problem: cubed root of 5/3x) the directions were to rationalize the denominator of each expression. Thankss!!!!!

232. ## Trig

If a plane takes off on runway 31 (N 31o W) and flies 4 miles, then makes a right (90o) turn and flies 11 miles, what bearing will the traffic controller use to locate the plane?

233. ## chemistry

treatment of a 0.3203g sample of impure soduim chloride with an excess of AgNo3 resulted in the formation of 0.7331g of AgCl. how many grams of sodium chloride were in the sample? What is the weight percentage of NaCl in the sample?

234. ## math

I need to find the median,mode,range 14,52,12,15,64,92,97,94

235. ## Math

A DVD producer has fixed costs (factory, machinery, and money paid to the recording artist) of \$406,000. Additionally, for every DVD produced, the company spends \$5 for materials and labor. The DVDs can be sold for \$12 each. a) Define a function, which

236. ## math

30% of 80 show work

237. ## math

what is 35 divided by 5 equal to because the answer they give me is not a choice

238. ## Hard Math

Why are these poor models for a parabola, Where a ball starts a a certain point and then is hit to reach a maximum height (vertex) and then lands at a certain point i. y = -0.002x(x - 437.1) ii. y = -0.5x + 216x + 3 iii. y = -0.002x + 0.879x + 3.981 iv. y

239. ## Math

The least perfect square, which is divisible by each of 21, 36 and 66 is: A. 213444 B. 214344 C. 214434 D. 231444 A?

240. ## Chemistry

How many grams of propane must be burned to provide the heat needed to melt a 70.0-g piece of ice...? How many grams of propane must be burned to provide the heat needed to melt a 70.0-g piece of ice (at its melting point) and bring the resulting water to

241. ## trig

city A is 300 miles directly north of city B assuming the earth to be sphere of radius 4000 miles determine the difference in latitude in degrees of the two cities

242. ## SS7R - HW Question Check

Boston Tea Party Definition: Angry and frustrated at a new tax on tea, and dumped 342 whole crates of British tea into Boston harbor on December 16, 1773. am i correct???

243. ## physics

At the instant a traffic light turns green, a car starts from rest with a given constant acceleration 0.5 m/s^2. just as the light turns green, a bus, traveling with a given cinstant speed 16.0 m/s, passes the car. The car speeds up and passes the bus some

244. ## physics

How much kinetic energy does a 2000 kg traveling 70 mph have?

what is an antonym for pallor?!

246. ## calculus

Use the shell method to set up and evaluate the integral that gives the volume of the solid generated by revolving the plane region about the y-axis. y = 6x y = 18 x = 0

247. ## calculus

Use the shell method to find the volume of the solid generated by revolving the plane region about the line x = 9. y = 7x − x2 y = 0

248. ## SS7R - HW Question Check

Boston Massacre Definition: Shooting of five American colonists by British troops on March 5, 1770. am i correct???

249. ## calculus

Find the arc length of the graph of the function over the indicated interval. (Round your answer to three decimal places.) y = ln (sin(x)) ,[π/4,3π/4]

250. ## chemistry

What products are formed when aqueous solutions of Na2SO4, Fe3SO42, and BaCl2 are mixed together ? Can someone help me write out a balanced equation for the reaction that occurs.

251. ## Math

Could someone explain the steps for this question. Simplify the expression tan(5pi/8)-tan(3pi/8)/1+tan(5pi/8)tan(3pi/8)

252. ## Math

A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is: A. 57 B. 67 C. 77 D. 87 C?

253. ## SS7R

Saratoga Definition: Turning point of the Revolutionary War in that it convinced France to enter the war on the side of the Americans. I have to write a short Saratoga definition. am i correct

254. ## Math

How many gallons of 15% iodine solution should be mixed with 40% iodine solution to make 100 gallons of a 20% solution?

255. ## science

A ball with mass m projected horizontally o the end of a table with an initial kinetic energy K. At a time t after it leaves the end of the table it has kinetic energy 3K. What is t? Neglect air resistance.

256. ## chemistry

Calculate the pH of a solution obtained by mixing 30 mL of 0.75 M CH3COOH with 15 mL of 1.5 M NaOH.

257. ## chemistry

treatment of a 0.3203g sample of impure soduim chloride with an excess of AgNo3 resulted in the formation of 0.7331g of AgCl. how many grams of sodium chloride were in the sample? What is the weight percentage of NaCl in the sample?

258. ## statistics

In a group of 100 students, 60 are taking math and 12 are taking English, but no one is taking both. What is the probability that a randomly selected student from this group is taking either math or English?

259. ## french

Is there a debt ceiling in france? I have searched but cant find an exact amount. If there is, what is it? thanks

260. ## calculus

discuss the curves under the headings given in this section y=x/x-1

261. ## physics

An 845 N sled is pulled a distance of 180 m. The task requires 1.38 x 104 J of work and is done by pulling on a rope with a force of 122 N. The rope is held at _____° above the horizontal.

262. ## pre-algebra

if measure angle one = 56 degrees then measure angle 4=

263. ## Physics

You fill your tires with air on a cold morning (-5degreesC) to 220-kPa gauge pressure, then drive into a 32degreesC desert. (a) Assuming the volume of air in the tires remains constant, what's the new gauge pressure? (b) what would be the gauge pressure if

264. ## pine glenn

If I have total of 63 brushes and there is six times as many orange that white how many orange do I have and how many white? how do I solve

265. ## algebra

How do you find year elapsed using miles per gallon??

266. ## algebra

determine whether 17 is a solution of the equation 5x+7 = 92

267. ## AP CHEMISTRY NEED HELP PLEASE!

Calculate the enthalpy of combustion of C3H6: C3H6 (g) + 9/2 O2 (g) yield 3CO2 + 3H2O using the following data: 3C (s) + 3H2 (g) yield C3H6 (g) change in H= 53.3 kJ C(s)+O2 (g) yield CO2 (g) change in H= -394kJ H2 (g) + 1/2 O2 (g) yield H2O (l) change in

268. ## biology

What effect does an increase or decrease in the pH of the cell cytoplasm have on proteins and their ability to function?

269. ## Physics

In a cathode ray tube, electrons initially at rest are accelerated by a uniform electric field of magnitude 4.71 x 105 N/C during the first 5.49 cm of the tube's length; then they move at essentially constant velocity another 47.9 cm before hitting the

270. ## physics

It takes you 9.5 minutes to walk with an average velocity of 1.2 m/s to the north form the bus stop to the museum entrance. What is your displacement?

asked by alessa castillo
271. ## Physics

In lab tests it was found that rats can detect electric fields of about 5.07 kN/C or more. If a point charge of 1.24 μC is sitting in a maze, how close must the rat come to the charge in order to detect it?

272. ## Accounting

If you are closing out a company how would you handle retained earnings? Example: If I opened a company with my own cash for \$1,000.00. I know the entry would be: \$1,000.00 DB to cash \$1,000.00 CR to Retained Earnings If I used the \$1,000.00 cash to pay

273. ## High Point

a sign is in the shape of rhombus with a 60 degree angle and sides of 9cm long. Find its are to nearest tenth?

274. ## thesis statement

I need to come up with a good thesis statement for Amy Tan "Mother Tongue" and Gloria Anzaldua "how to tame a wild tongue". I have to do a point by point comparison essay & I can't really come up with a theses :( Help?!

275. ## APUSH

how did huge industrial trusts develop in industries such as steel oil and banking, what was the effect on the economy?

276. ## Science

how many atoms would there be in 6H2O?

277. ## Math

Change the base five numbers to equivalent base ten numbers. Also take given base five numbers and write next five base numbers to five numbers. a. 23 five b.14 five c. 214 five

asked by Emma D.
278. ## physics

A typical woman gives off heat at the rate of about 8000 calories per hour. How long would a woman have to stay in a bath of 60L (60,000g)of 26*C water in order to raise the water temperature to 30*C. Presume that all the heat given off by the woman is

279. ## Chemistry

If you react 2.0 g AgNO3 and 2.5 g Na2SO4, what is the percent yield if the actual yield is 1.6 g Ag2SO4? 2AgNO3 + Na2SO4 → Ag2SO4 + 2NaNO3

280. ## Chemistry

Assume that 64.0 cal of heat is applied to a 14 g sample of sulfur at 16°C. What is the final temperature of the sample if the specific heat of sulfur is 0.175 cal/(g·°C)?

281. ## physics

why is it that whn water has been boiled so much it reaches a point when it stops producin bubles?

282. ## Chemistry

What is the energy of a mole of UV photons having a wavelength of 11 nm?

283. ## chemistry

In formula for where ferenheit and celsius converge (T = T x 9/5 +32); what is the logic that T x 9/5 = T + T = 4/5?

284. ## Math

what is the scientific notation of 1,890,000

285. ## Chemistry

It takes 208.4 kJ of energy to remove one mol of electrons from the atoms on the surface of rubidium metal. If rubidium metal metal is irradiated with 254-nm light, what is the maximum kinetic energy the released electrons can have?

286. ## trig

not sure how to simplify tan(t+pi)/sin(t+2pi)

287. ## chemistry

treatment of a 0.3203g sample of impure soduim chloride with an excess of AgNo3 resulted in the formation of 0.7331g of AgCl. how many grams of sodium chloride were in the sample? What is the weight percentage of NaCl in the sample?

288. ## physics

At the instant a traffic light turns green, a car starts from rest with a given constant acceleration 0.5 m/s^2. just as the light turns green, a bus, traveling with a given cinstant speed 16.0 m/s, passes the car. The car speeds up and passes the bus some

289. ## English

Cause and effect The storm blew down the oak

290. ## Precalculus

Which value for x is a solution to cosx = sqrt of 2/2? a) -9pi/4 b) 3pi/4 c) -3pi/4 d) 4pi/3 What is the first step I should do?