# Questions Asked onSeptember 24, 2010

1. ## 6th grade science

one parent has brown eyes the other has blue eyes, if they have a child what is the percent that it will have brown eyes? blue eyes?

2. ## History

What is Article 1 of the Constitution called?

3. ## physics

An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An electron moving in the +x direction accelerates from an initial velocity of +7.93 x 105 m/s to a final velocity of 2.90 x 106 m/s while traveling a distance of

4. ## Math

Teaneck High had an enrollment of 11040 in 1985 and an enrollment of 12100 in year 1998. What is the predicted enrollment of Teaneck High in 2014 if we assume a linear model?

5. ## maths

the sides of a triangle are in the ratio 2 ratio 3ratio 4. if the shortest side measures 6cm,what is the perimeter of the triangle?

6. ## math-trig

Use the double angle identities to find sin2x if sinx= 1/square of 17 and cosx

7. ## us history

explain the role of the U.S. in the emerging global community?

asked by Lisa Smith
8. ## earth science

how did cultures throughout history attempt to explain events such as volcano eruptions, earthquakes, and ecipses?

9. ## physics

Andy (mass 80 kg) uses a 3.0 m long rope to pull Bob (mass 60kg) across the floor (uk= .2) at a constant speed of 1.0 m/s. Bob signals to Andy to stop by plucking the rope, sending a wave pulse forward along the rope. The pulse reashes andy 150 ms later.

10. ## physics

A point on a string undergoes simple harmonic motion as a sinusoidal wave passes. When a sinusoidal wave with speed 24 m/s, wavelength 30 cm, and amplitude of 1.0 cm passes, what is the max speed of a point on the string?

11. ## physics

A simple pendulum is made by attaching a small cup of sand with a hole in the bottom of a 1.2 m long string. The pendulum is mounted on the back of a small motorized car. As the car drives forward, the pendulum swings from side to side and leaves a trail

12. ## Science

My original question: In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)? PsyDAG replied: Since 4 of the 8 are

13. ## PHYSICS

A rock is dropped from rest into a well. The sound of the splash is heard 2.40 s after the rock is released from rest. (a) How far below the top of the well is the surface of the water? The speed of sound in air (at the ambient temperature) is 336 m/s.

14. ## physics

A horizontal pipe 17.00 cm in diameter has a smooth reduction to a pipe 8.50 cm in diameter. If the pressure of the water in the larger pipe is 8.00 104 Pa and the pressure in the smaller pipe is 6.00 104 Pa, at what rate does water flow through the pipes?

15. ## French

So i wrote a composition in french and my teacher marked that i conjugated a verb incorrectly. I can't figure out what it is supposed to be (i don't know if i'm using an incorrect idiom, etc). The original sentence is, "Quand vous allez a l'interieur, la

16. ## 11th grade

Calculate the root mean square,average and most probable speed of oxygen at 27degree celcius

17. ## physics

Consider a projectile fired horizontally from a cliff of a given height. With what speed must it be fired so that it makes a 45 degree angle with the ground when it hits

18. ## math

Find the median of the following set of numbers. 45, 21, 55, 22, 65, 61

19. ## math

Find the five-number summary of the following set of numbers: 349, 243, 119, 363, 246, 505, 263, 221, 324

20. ## Avon k 8 Center

If 50 is the first number, what is the second number?

21. ## math

11. Place the following set of numbers in ascending order. 20, –7, 5, –5, 12, 4, 15

22. ## math

- 2.3 – (- 8.9) does it equal -6.6 or x= 2/3=4/6=6/9 x=8/9-6/9=2/9

23. ## Statistics

37% of all doctors are family practitioners. If there are 300 doctors in one city, what is the standard deviation for the number of family practitioners? What is the expected value for the number of family practitioners?

24. ## math

identify n(S) for the given set: S={5,10,15,20,25,30,...}

25. ## math

find the representation of the number 256 in base six

26. ## Statistics

At one college, 2/3 of the professors have doctorates. If a student signs up for 5 classes, what is the probability that 4 of the professors will have a doctorate? I have difficulty defining the X in the binomial distribution?????

27. ## calculus

A military jet flies directly over and at a right angles to the straight line course of a commercial jet. The military jet is flying 200 mph faster than four times the commercial jet. How fast is each going if they are 2050 miles apart (on a straight line)

28. ## geometry

find the value value of X m

29. ## calculus

find the rate of change of the distance between the origin and a moving point on the graph of y=x^2+2 if ds/dt=5 centimeters per second.

30. ## Math

Solve by completing the square x^2-18x=10 Could you please explain this process. I have read through the text over and over and I just do not understand the process.

31. ## English

did the wampanoag brung popcorn to the first Thanksgiving feast

32. ## math

A jet takes the same time to travel 2500km with the wind as it does to travel 1900 km against the wind. If its speed relative to the air is 450km/hr, what is the speed of the wind?

33. ## Comm 220

what type of introduction to use

34. ## Religion

Name me any men/women who made mistakes but God still uses them & accepts them. (Besides Moses & David)

What is the difference between WEU and EU?

36. ## math

Mr.Ronald travelled 5/8 of his journey in 150 min at an average speed of 82 km/h. What was the total distance of his journey?

37. ## math

Donovan spent some money on friday. He spent thrice as much money on saturday than on friday. He spent $20 on sunday. If he spent a total of$125 in the 3 days, how much did he spend on saturday?

38. ## algebra 1

What is the y-intercept of the graph of y=2^x+2? (0,4)?

39. ## math

evaluate 71/3-25/6

asked by eudora c
40. ## start

the matrials commnly used to sheild living begings from potentially harmful radiactivily includes

41. ## Math

An artist wishes to frame a picture with 84 inches of framing material. How wide will the frame be if its width if 75% of its length?

42. ## Math

Write an equation of the line satisfying the given conditions in stand form. Ax+By=C How would you do this? m=2 and contains (-3,1)

43. ## English

Why is it a good idea for a teacher to make their students take turns reading the first couple chapters of a novel out loud as a class before the teacher assings the rest of the novel to be read on their own?

44. ## math

find domain of the function?

asked by jeff meyers
45. ## Physics

A rifle is aimed horizontally toward the center of a target 220 m away. If the bullet strikes 48 cm below the center, what was the velocity of the bullet (ignore the friction)?

46. ## physics

a block of ice initially sliding at 15m/s on a frozen pond comes to rest after traveling 90 meters. What is the coefficient of friction?

47. ## US History

'Consider both sides of an issue that has been debated in recent years: Should organized prayer be allowed in public schools? List 3 reasons why it should be and 3 reasons why it should not. Then decide which position you favor.' Need help with listing the

48. ## Foreign Language School

Where are Foreign Language Schools ?

asked by Shikher Kapoor
49. ## trig

Write an equation of a secant graph that has amplitude of 3, period of pi/2, is shifted to the left pi/4, and is flipped over the x - axis.

gtai.de/EN/Navigation does this link the trade agreements in germany ??

51. ## 12th grade

The length of a rectangular floor is 2 feet more than its width. The area of the floor is 168 square feet. Kim wants to use a rug in the middle of the room and leave a 2 foot border of the floor visible on all sides. What should the length (the longer

52. ## algebra

how many liters of a 14% alcohol solution must be mixed with 20 L of a 50% solution to get a 30% solution? Help!

53. ## statistic

. A company is considering installing new machines to assemble its products. The company is considering two types of machines, but it will buy only one type. The company selected eight assembly workers and asked them to use these two types of machines to

54. ## PHYSICS

vector B is 3.46 units long toward the east. Vector A is 4.00 units long 30 degrees N of E. How long and in what direction is C = A - B?

55. ## PHYSICS

Io is a satellite in Jupiter. The radius of its orbit is 422000 km. Its period is 1.77 days. Calculate the mass of Jupiter.

56. ## math

A military jet flies directly over and at a right angles to the straight line course of a commercial jet. The military jet is flying 200 mph faster than four times the commercial jet. How fast is each going if they are 2050 miles apart (on a straight line)

57. ## Chemistry

what is the difference between a basic bunsen burner and the tirrll burner

58. ## Chemistry

it is considered a saftey hazard to leave an operating burner unatteneded unless the flame is made luminous10 explain why

59. ## Chemistry

when an object was weightedon a top loading balance the balance display read 13.730 the mass was recorded as 13.73g what is wrong with that explain the answer

60. ## math

find the median and mean of this numbers 95,75,86,96,70,68,76,81,95,76,69,83,93,88,94 Is the median 83and the mean 83 if i arrange the numbers in ascending order

61. ## physics

An airplane flies 200 km due west from city A to city B and then 340 km in the direction of 35.0° north of west from city B to city C. (a) In straight-line distance, how far is city C from city A? (b) Relative to city A, in what direction is city C? °

62. ## math

You can use 1 mile = 5,280 feet for your conversions. 1. Many people know that the weight of an object varies on different planets, but did you know that the weight of an object on Earth also varies according to the elevation of the object? In particular,

x+3/2=6

64. ## Math

A and B caan finish typing a manuscript in 8/3 days; B and C together, in 40/9 days; A and C together in 20/7 days. How long will each, working alone type the manuscript?

65. ## math

what is 3m/m (fraction), Written as a mixed fraction

66. ## physics

would the energy lost to friction for a sliding object be accounted for as friction force / time traveled ? ?

67. ## 9th grade

Around the time of the roman empire the terms inch, foot, and yard were refine. what was the length of a foot based on?

68. ## Chemistry

where would the safest location on the bench to set up and use a labratory burner explain why

69. ## Math

Solve for x 1/x+1/(x+16)=1/15

Do Germany only have the european union trade agreement? I searched in the interent and it says that Germany has a new foreign trade and inward investment AGENCY of the federal republic of germany: therefore would this agency be considered as a trade

71. ## math

the points are (2.1, -6.3) (-2.5, 4.7) y=mx+b find what m= and what b = i got m=-2.39 but the I tried to plug the coordinates into y=mx+b but keep getting two different answers of -1.281 and -1.275.

72. ## management

The question I must answer is:How has the management of your organization been influenced by external and internal factors? I am not sure if I am understanding the meaning of external and internal factors in a organization. Can you help me with these

73. ## math

how would i find the range for these set of numbers -12,19,12,10,-24,1,-1

74. ## English 2

13. When employing emotional appeals, a writer should a. be sure that those appeals support his or her logical arguments b. ignore his or her logical arguments c. ignore facts and statistics and concentrate on the reader's feelings d. also use circular

75. ## English 2

14. "Hurry in before supplies disappear" is an example of a. the bandwagon appeal b. false cause and effect c. name-calling d. statistical evidence D? Thanks -MC

76. ## help

describing your experience using a new technology tool. The technology can be any application or digital device that is new to you. • Include the following in your paper:

77. ## physics/ math

A student bikes to school by traveling first d_N = 1.10 {miles} north, then d_W = 0.500{miles} west, and finally d_S = 0.200 {miles} south. You will now find the same quantity algebraically, without the need to use much geometry. Take the north direction

78. ## survey of clac

g(x)={x+6, for x or equal to -2, find the limit: lim g(x)= lim g(x)= x-->-2^- x-->-2^+ lim g(x)= lim g(x)= x-->-2^+ x-->4^-

79. ## US History

'Consider both sides of an issue that has been debated in recent years: Should organized prayer be allowed in public schools? List 3 reasons why it should be and 3 reasons why it should not. Then decide which position you favor.' 3 reasons it shouldn’t

80. ## calculus

find the rate of change of the distance between the origin and a moving point on the graph of y=x^2+2 if ds/dt=5 centimeters per second.

81. ## math

the bar and graph shows the number of students by major in the college of arts and sciences. What is the ratio of history majors to the total number of students in the college? Math-200 history-300 english-400 science-150 other- 175

82. ## algebra

the equation is f(x) = (1/sq. root of 1-x^2) 1. f(x) is never zero. 2. 0 is in the domain of f 3. All negative real numbers are in the domain of f 4. All positive real numbers are in the domain of f 5. 1 is in the domain of f 6. f(x) is never negative 7.

83. ## math

what is the average of 45 and55

84. ## math

how would i write 0.09524 as a percentage is it 95%

85. ## math

so is 0.09524 move decimal two places to the right is it 9.52%or is it 9.524%

86. ## Physics-Mechanics

A pulley is massless and frictionless. 3 kg, 2 kg, and 6 kg masses are suspended. What is the tension T1 in the string between the two blocks on the left-hand side of the pulley?

87. ## calculus

Find the points on the curve y= 2x^3 + 3x^2 - 36x + 7 where the tangent is horizontal.

88. ## math

4-(-3)+1/2-2/(-2) am having trouble with this problem. I got a 8.5 decimal are a fration of 8 1/2 am I right? are how do i come up with the solution

89. ## math

-3/5 =(9/35)=0.34285714 as a decmial and a fraction of -12/35 did i work this problem right

90. ## math

7/9-(13/18)does it equally -1/18 or can you help me with this soultion

91. ## math

(-21)-(-9)/-21-(-21)How would i find the soultion to this problem

92. ## Healthcare Communication Strategies

PLEASE I NEED HELP WITH WRITING 200-300 WORDS TO THIS QUESTION, I'VE TRIED EVERYTHING AT A LOSS, DUE TODAY Would you communicate with a professional healthcare provider via email given the change? Why or why not?

93. ## math

-3/5 =(9/35)so how would i get to coming up with the answer

94. ## management

The question I must answer is:How has the management of your organization been influenced by external and internal factors? Would the effect that the FDA has on a organization be consider a external factor?

95. ## Algebra

Solve the system of equations by an algebraic method. Leave answer in exact form. 4x² - 7y² = 21 x² + 2y² = 99

96. ## math-Ms. Sue

ms Sue I was not sure how to do a response to you but my prior question was the following and you had answered to take the total number of students and make this the denominator and the history majors the numerator which I did and makes this 300/1225 so

97. ## sociology as an individual pastime

Could you please help me explain the research methodologies used in sociology as an individual pastime?

98. ## biology

What happens to the cells of the body when large quantities of sodium ion were introduced to the blood stream?

99. ## Government

I am a teacher and have a special education student in one of my inclusion government classes. The student likes to draw and drawing seems to encourage him. My question is that I would like to find a government project that would teach government and yet

100. ## economics

What is one kind of monopol that the U.S. government generally permits?

101. ## math

3m/m is a fraction. How do I right it as a whole number. Is it just 3?

102. ## algebra

Solve P=2L+2W for L. L=

103. ## math

A spherical water tank has a diameter of 10 feet. How much water does it hold when half full? (Use 3.14 for p)

104. ## German

I have to write a 250 word essay in German. You are going to talk about a trip you took to all four German-speaking countries. (Don't forget Liechtenstein!) Can someone help me i don't know what to write? Plus my german isn't good enough.

asked by Mara Selene
105. ## international award

does anyone know what a international award can help in?

106. ## physics

is this right: velocty is speed in a particular distance.

107. ## words

Which one of the following operations will move you from cell B7 to cell B8 of a worksheet? A. Pressing the right arrow key B. Clicking on the down scroll arrow C. Pressing the Enter key D. Pressing the Page Down key

108. ## Excel, Access, Word

When you link a worksheet and a chart in a business report as well as on a slide, which Microsoft Office applications are integrated? A. Word, Excel, PowerPoint B. Excel, Access, Word C. Word, Access, PowerPoint D. Excel, PowerPoint, Publisher

109. ## access

Which one of the following statements accurately describes the AutoNumbers field in Access? A. Requires a mathematical calculation B. Includes the currency symbol C. Is automatically assigned as the primary key D. Can be edited with values from another

110. ## words

Which type of file integration is the best choice when you wish to simultaneously update information in several Office files? A. Embedding C. Merging B. Linking D. File sharing

111. ## words

What function will you get if you click on the button displaying the “Ó” symbol? A. Hyperlink C. Merge and Center B. Average D. AutoSum

112. ## Functions

I have to find the domain and range for the composite of functions G(x)=sinx and h(x)=x^2-x+1. I'm confused about this and would really appreciate some help. Thanks.

113. ## PHyiscs

A HELICOPTER hovering above a forest fire dumps a large bucket of water. How far does the water fall in the first 3.0 seconds t=3.0s

114. ## Chemistry

Solve Calculate the grams of carbon of 77.7 g of propane?

115. ## pysics

A hot-air balloon is descending at a rate of 1.5 when a passenger drops a camera.If the camera is 41 above the ground when it is dropped, how long does it take for the camera to reach the ground?

116. ## Science

Predict how many electrons will most likely be gained or lost by each of the following elements. how do i know if they will lose of gain them? here are the elements i need to know if they lose or gain them. Cs Al Se N

117. ## History of Health Care Reimbursement System

I included the answers below but i don't know if my answers are correct please send me your opinions. thanks 1.By creating a committee on social welfare, the American Association of Labor Legislation helped to A. Decrease public hospital costs. B.

118. ## words

9. If you want to multiply the contents of each of the cells in column C by the tax rate that appears in cell A24, use a/an A. relative cell reference. C. filter. B. absolute cell reference. D. 3-D cell reference. 10. If you want to use one of

119. ## words

12. You’ve created a pie chart in Excel and placed it in a PowerPoint presentation. When you edit the pie chart in Excel, the pie chart in PowerPoint doesn’t retain the changes you’ve made. This means that the object has been A. hyperlinked. C.

120. ## power point

19. When using mail merge, the part that contains variable information such as names and addresses is called the A. merge fields. C. merged document. B. main document. D. data source. 20. Options for designing the way text and graphics are positioned on a

121. ## adult education

19. When using mail merge, the part that contains variable information such as names and addresses is called the A. merge fields. C. merged document. B. main document. D. data source. 20. Options for designing the way text and graphics are positioned on a

122. ## Math

1. In the 30 day month of April, for every three days it rained, there were two days it did not rain. The number of days in April on which it rained was how much greater than the number of days on which it did not rain? 2. Each terms of a certain sequence

123. ## chemistry

when you add manganese dioxide to hydrogen peroxide does the temperature decrease or does it form a precipitate?

124. ## English

Can you please an idea of how to create a collage that shows how huck and jim feel about the sanctuary of the raft and the violence and shame of the shore. I'm confused as to what pictures or quotes to put in the collage.

asked by bindiya farswani
125. ## physics

The best leaper in the animal kingdom is the puma, which can jump to a height of 12.4 ft when leaving the ground at an angle of 38°. With what speed, in SI units, must the animal leave the ground to reach that height?

126. ## chemistry

The pH of a 0.175 M aqueous solution of a weak acid is 3.52. What is Ka for this acid ?

127. ## Health Care Reimbursement Methodologies

I included the answers below but i don't know if my answers are correct please send me your opinions. thanks 1. Hospitals that are excluded from the Medicare acute care PPS (such as children’s hospitals) are paid based on A. reasonable costs.. B. fee

128. ## physics

The best leaper in the animal kingdom is the puma, which can jump to a height of 12.4 ft when leaving the ground at an angle of 38°. With what speed, in SI units, must the animal leave the ground to reach that height?

129. ## Physics

A model rocket is launched upward with an initial speed of 50 m/s. It accelerates with a net constant upward acceleration of 2.0 m/s^2 until its engines stop at an altitude of 150 m. (a) What is the maximum height reached by the rocket? (b) how long after

130. ## Physics- Mechanics

A 33.5 kg person stands on a 67 kg platform. He pulls on the rope that is attached to the platform via the frictionless lower-right pul- ley. He pulls the rope at an angle of 35◦ to the horizontal, as shown in the figure below. Assume: g = 9.8 m/s2 .

131. ## Math

`Perform the indicated operations and simplify. (z-1)/(z-8)-(z+1)/(z+8)+(z-120)/(z^2-64)

132. ## Physics-Mechaincs

The suspended 2.29 kg mass on the right is moving up, the 1.3 kg mass slides down the ramp, and the suspended 7.7 kg mass on the left is moving down. There is friction between the block and the ramp. u=0.15 The acceleration of gravity is 9.8 m/s2 . The

133. ## Physics-Mechaincs

A force of 23.52 N pushes and pulls to blocks as shown in the figure below. The vertical contact surfaces between the two blocks are frictionless. The contact between the blocks and the horizontal surface has a coefficient of friction of 0.29. The

134. ## English 2

'In "It Can't Be Helped", the author describes how racial prejudice affected her early life. Identify the key event in the selection, then explain how the author responded to the event at the time it happened and how she viewed the same even later in

135. ## chemistry

nitroglycerin (used medically as a vasodilator to treat heart conditions): {\rm C} 15.87\% {\rm H} 2.22\% {\rm N} 18.50\% {\rm O} 63.41\%.

136. ## design

Interprete this quotations " THERE IS NOTHING SUCH AS GOOD AND BAD DESIGN,ONLY APPROPRIATE DESIGN"? write 150 words and explain how do u would interprete this quotation. -mention an example of a design project that represent this the meaning of ur

asked by red ridding
137. ## algebra

2x^2-x-3

asked by dont matter
138. ## math

consider a square and a regular pentagon. one side of the square is 6 feet longer than a side of the pentagon, and the figures have the same perimeter. what are the lengths of the sides of each figure?

139. ## Language arts

I don't know how to write a summary. How do you write a summary?

asked by Cindy Lee
140. ## social studies

what aresome landforms in the southwest region

141. ## ap chemisty

Calculate the heat of formation of butane given that the heat of formation of H20(l) is -285.3 kj/mol and the heat of formation of CO2(g) is -393.5 kj/mol.

142. ## Math

Multiply (5ã5 - 15ã7)(3ã5 +9ã7)

143. ## Math

I have to find the domain and range for the composite of functions G(x)=sinx and h(x)=x^2-x+1. I'm confused about this and would really appreciate some help. Thanks.

144. ## Math

Simplify by removing factors of 1. (r^2-64)/(r+8)^2

145. ## geography

Bolivia is one of two land locked countries in South America. What is the name of the other country? Looking on a map it looks to be Paraguay. Is that correct?

146. ## Spanish

indicate the realtionships between the family memebers listed below: Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1. mi hermano(a)/ mis abuelos 2. mi hijo(a)/ mi hermano(a) 3. mi

147. ## geography

If you are in downtown Chicago and facing north, what direction would you go to reach Lake Michigan? I am pretty good with directions. So my answer is, I would go east. Correct?

148. ## sew

how can i hand sow a pillow(i only know the blanket and outling stich

149. ## arithmetic

In an arithmetic series, the terms of the series are equally spread out. For example, in 1 + 5 + 9 + 13 + 17, consecutive terms are 4 apart. If the first term in an arithmetic series is 3, the last term is 136, and the sum is 1,390, what are the first 3

150. ## math

The imaginary number i is defined such that i2 = –1. What does i + i2 + i3 + ... + i23 equal?

151. ## English

Hi I have to write an essay that is due on Monday. However, English not being my second language I am having a hard time starting this essay. I don't know where to begin, what information to included ect. Please help me with essay and give me an ideas.

152. ## Algebra

I can't figure out the answer to question: When you subtract -2c+3d from 5c-7d

153. ## Calculus

ﬁnd the ﬁrst three non-zero terms of the Maclaurin expansion of y = f (x) where the function is deﬁned implicitly by x^2 + xy + y^2 = 1. Also estimate the error approximating f(0.1) using the ﬁrst two non–zero terms of this series.

154. ## Math HELP!

I posted a few questions and then went back and posted how I thought they were supposed to be answered. Could someone please locate my earlier questions and tell me if I am on the right track?

155. ## writing

i have to brainstorm ideas on prison break any tips?

156. ## Precalc

How to solve this inequality and graph? (2x+5)/(x+1) > (x+1)/(x-1) would I first get rid of x-1 and divide x+1 over to get (2x+5)(x-1)/(x+1)(x+1) > 0 if so, then who would I graph this?

157. ## biology

How has climate change impacted the biodiversity around coral reefs?

158. ## Math

The problem to solve is: (x+20)(x-12)(x+4)>0 but I can't figure out how to do this right so I left off the >0 and tried to solve the equation. x+20 evaluates to x+20 x-12 evaluates to x-12 Multiplying x+20 by x-12 is a classic Algebra problem. Here, you

159. ## math

what is the annual return of a \$24 investment at 6.1% for 381 years?

160. ## english

Mood and tone! can someone kindly and effectively explain the difference.I am lost completely.Help!

161. ## MATH-help

I have math questions to do, but since my class and I share the math text books with this other class, we are not allowed to bring them home. So I decided to go onto the site : h t t p : // highered . mcgraw-hill . com

162. ## not a student

what is an indigenous religion

163. ## calc 3

find the arc length of the curve r(t)=

164. ## ap chemistry

a cubic piece of uranium metal (specific eat capacity= .117 J/g degree celcius) at 200.0 degrees celcius is droped into 1.00 L of deuterium oxide ("heavy water", specific heat capacity=4.211 J/g degree celcius) at 25.5 degrees celcius. the final

165. ## Physics

There is an electric field at a certain point P, where initially there is no charge. A point-like object is placed at point P, and a force on the object is observed. Next the object is removed and another point-like object is placed at the same point.

166. ## ap chemistry

A sample of KOH is dissolved into 100.0 grams of water in a coffee cup calorimeter. if the dissolution produces 6.45 kJ of heat and the temperature change is 25.4 degrees celcius to 40.0 degrees celcius, how much KOH (in grams) is added to the water? (the

167. ## Chemistry

How do I find the radius of a sulfide ion?

168. ## Math Reiny

AmI doing this right? Multiply (a+1/2)(a+1/3) a^2+1/6

169. ## 3rd grade

how many miles is Jupitor from Earth?

170. ## maths

A research about Mechanisims .

171. ## Science

What are some bad things on Earth ?

172. ## chemistry

Substances A and B with the same mass and the same initial temperature absorb the same amount of heat energy. The final temperature of A is higher than the final temperature of B. Which substance would have the higher specific heat? Why?

173. ## chemistry

For OCTANE, what is the ratio of Carbon atoms to Hydrogen atoms in a molecule? It's specified that Octane undergoes complete combustion to form 8L of Carbon Dioxide & 9L of Water at constant temp and pressure. thanks :)

174. ## social studies

Can you please help me write a funny story using these ten(10) words,about,shape,house,urban,suburban,value,what,when,contrast and said.

175. ## Chemistry

A 40.0g sample of an unknow, yellowish-brown, pure metal was heated to 62degrees Celcius and put into a coffee cup calorimeter containing 85.0g of watera at 19.2 degrees Celcius. The water was heated by the hot metal to a temperature of 21.0 degrees

176. ## Physics

How far would you have to drill into the Earth, to reach a point where your weight is reduced by 8.0 ? Approximate the Earth as a uniform sphere.

177. ## Chemistry

A 40.0g sample of an unknow, yellowish-brown, pure metal was heated to 62degrees Celcius and put into a coffee cup calorimeter containing 85.0g of watera at 19.2 degrees Celcius. The water was heated by the hot metal to a temperature of 21.0 degrees

178. ## science

i need help at these. thx 1.the statement, " all living things are made of cells" is an example of _______. 2. a controlled experiment helps to eliminate the effects of unwanted ________. 3. ________ science emphasizes inquiry and observation.

179. ## arithmetic

Evaluate |-14|+|-22|–|36|+|–36|.

180. ## french

what does arrondis le nombre 160 795 a la dizaine de mille pres mean ?? and answer plzz

181. ## social studies

what role did geography play in the economic success of new york

182. ## ap chemistry

which of the following sets correctly describes the signs of q and w respectively for the following exothermic process at p=1 atm and t=370 K? H20(g)=> H20(l) a.) -,+ b.)+,- c.)-,- d.)+,+ e.) q and w are both zero

183. ## ap chemistry

the molar heat of fusion for water is 6.01 kJ/mol. the heat capacity for water is 75 J/mol deg. Which expresssion gives the quantity of energy needed to change one mol ice at 0 degrees celsius to liquid water at 25 degrees celsius? a.)6010/(75x25)

184. ## AP physics

i really need help on this problem!! Three blocks are connected,on a horizontal frictionless table and pulled to the right with a force T3 = 64.4 N. Assume that m1 = 12.5 kg, m2 = 25.0 kg, and m3 = 31.7 kg. (a) Calculate the acceleration of the system

185. ## english

Examples of personal interaction with a friend or family member about personal finance or credit cards

186. ## Spanish

indicate the realtionships between the family memebers listed below: Modelos: yo / mi tía Yo soy el (la) sobrino(a) de mi tía. mis abuelos / mi padre Mis abuelos son los padres de mi padre 1. mi hermano(a)/ mis abuelos 2. mi hijo(a)/ mi hermano(a) 3. mi

x+y=38

188. ## english

Examples of personal interaction with a friend or family member about personal finance or credit cards. This is an emergency!!! Help please

189. ## Composition

Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards.

190. ## social services hs

I was wondering how someone could qualify for SRS services? SRS is social rehabilitation services... like food stamps, drug or alcohol rehab, finding child care, disability services, finding mental health services...etc I was going to call my local srs

191. ## Chem

Predict how many electrons will most likely be gained or lost by each of the following elements. Al I know it loses but how many?

192. ## 9th grade

A square made by a length of string 8 cm long is reshaped into a circle. What is the circumference of the circle

193. ## Chem

The solubility of Cu(NO3)2 is 6.83 grams per 100 grams of water (d= 0.9982 g/ml) How many grams of Cu(NO3)2 will dissolve in 175 ml of water?

194. ## Physics

A satellite of mass 5700 orbits the Earth and has a period of 6000 . a) Determine the radius of its circular orbit. b) Determine the magnitude of the Earth's gravitational force on the satellite. c) Determine the altitude of the satellite.

195. ## Math SCREAMING for HELP

Use the quadratic formula to slove the equation. x^2-x=-7 This is what I have got so far and I do not think this is right: x=1(-1)±√-1^2-4(1)(7)/2(1) x=1±√1-4(7)/2 x=1±√-21/2 x=1±-21/2 and here I am lost! Use rational exponents to simplify.

196. ## math

x^4+3x^3-x^2+6 for x=-3 -3^4+3x-3^3-(-3^2)+6 -81+3x-3^3-(-3^2)+6 81+-24=57

asked by Anonymous 4
197. ## math

y^3-7y^2+8y-13 for y=2 is the answer -31

asked by AnOnYmOuS 1
198. ## ap chemistry

the heat of neutralization for a strong acid in dilute water solution is about 60 kJ/mol of H+. What quantity of heat in kJ is produced when 100 mL of 3 M HCl is mixed with 100 mL of 1 M KOH?

199. ## CHEM

Magnesium has an average atomic mass of 24.3068 amu and has three isotopes: 24Mg(23.985045 amu), 25 Mg (24.985839 amu) and 26 Mg(25.982595 amu) The 26 Mg isotope has an abundance of 11.1%. what are the abundances of the other two isotopes. Please show work

200. ## ap chemistry

in which type of process does the H of a system decrease? endothermic or exothermic

201. ## math

2(m^2+5n)-4n^3+9 for m=-5 and n=-2 answer=95

asked by AnOnYmOuS 1
202. ## ap chemistry

a system undergoes a process consisting of the following two steps: step 1: the system absorbs 72 J of heat while 35 J of work is done on it. step 2: the system absorbs 35 J of heat while performing 72 J of work calculate delta E for the overall process.

203. ## Math

Find the following. Assume the variables can represent any real number. ã((a+7)^2 ) When I tried to do this I got completely lost. ã((a+7)^2 )=„ a+7„  I'm not doing this right am I?

204. ## ap chemistry

a battery operated tool, such as a cordless drill, converts... a.) electrostatic energy to chemical potential energy b.) mechanical energy to thermal energy c.) thermal energy to mechanical energy d.) thermal energy to chemical potential energy e.)

205. ## math

Show you solution. List the terms that complete a possible pattern in each of the following: a)38,33,28,23,18,_,_,_ b)640,320,160,80,_,_,_ c)7,8,15,23,38,_,_,_

206. ## Math

Multiply and simplify by factoring. Assume that all expressions under radicals represent nonnegative numbers. ∛(y^13 ) ∛(¡¼16y¡½^14 ) Am I supposed to add the exponents and multiply the little 3's?

207. ## biology

what are the seven major theories of biology sumerized

asked by susan marshall
208. ## math

For each of the following, identify the whole-number property being illustrated. (a) 2(3 + 4) = 2(4 + 3) (b) 5 + 7 = 7 + 5 (c) 1 • 14 = 14 = 14 • 1 (d) 5(9 + 3) = 5 • 9 + 5 • 3 (e) 2 + (3 + 2) = (2 + 3) + 2 (f) 5(3 • 4) = (5 • 3)4 are e, and f

209. ## Math word problem

The hypotenuse of a right triangle is 22 m long. The length of one leg is 10 m less than the other. Find the lengths of the legs. I have so far let one leg be x the other leg will be x-10 x^2 +(x-10)^2=22^2 x^2+x^2-20x+100=484

210. ## Math Uugghhh

Okay the problem says I have to multiply (-2t)^2(3t^7)^2 SO what am I supposed to do, add the exponents then multiply -2t by 3t? Geez this is so confusing. If I square everything inside the first parentheses by 2 I get (4t^2) the second parentheses would

211. ## math

Let U={u,n,i,t,e} A={n,i,t} B={n,e} C={u,n,i,t,e} D={u,e} Find each of the following: (a)A(with upside down horseshoe)B (b)C U D (c)D (with line over the D) show solution

212. ## geometry

Find the area of a polygon with the following information: Apothem = 38 in Perimeter = 140 in

213. ## word problem

A 62 foot rope hangs from the top of a pole. When pulled taut to its fullest length the rope reaches a point on the ground 31 feet from the base of the pole. Find the height of the pole to the nearest tenth of a foot. Let p equal the height of the pole.

214. ## economics

Two goods are complements when a decrease in the price of one good a. decreases the quantity demanded of the other good. b. increases the quantity demanded of the other good. c. increases the demand for the other good. d. decreases the demand for the other

215. ## help

A car starts from rest and travels for 8.0 s with a uniform acceleration of +2.4 m/s2. The driver then applies the brakes, causing a uniform acceleration of -1.0 m/s2. If the brakes are applied for 1.0 s, determine each of the following.

216. ## economics

When policymakers set prices by legal decree, they a. improve the organization of economic activity. b. obscure the signals that normally guide the allocation of society’s resources. c. are usually following the advice of mainstream economists. d. are

217. ## Math Reiny question

This is the problem you helped me with. I was curious, do I write the solution set as (1 + i3ã3)/2, (1-i3ã3)/2 change it to the standard form first x^2 - x + 7 = 0 a=1, b=-1, c = 7 x = (1 } ã(1 - 4(1)(7))/2 = (1 } ã-27)/2 Your answer is an

218. ## Math word problem

A page for a journal contains 70 square inches of type written words. The height of a page is twice the width. If the Margin around the type is to be 2 inches uniformly, what are the dimensions of a page?

219. ## algebra

I keep getting different answers to this 1 question..hoping some1 can help me! 1/4 = 3 - 2x-1/x+2... i get 3 different answers to this 1 question. please help!!

220. ## Plz Hel, word problem:)

I have tried hard to solve, but I'm stuck.... Let’s use our knowledge of quadrantic equations to analyze a real world business application. If P dollars is invested at r rate of interest compounded anually t years, then the amount of money, A,

221. ## chemistry

How are sugars stored in onions and potatoes?

222. ## algebra

Find the break-even point for the firm whose cost function C and revenue function R are given. C(x) = 16x + 10,000; R(x) = 21x

223. ## math

1,130,000 in scientific notation

224. ## calculus

Find the break-even point for the firm whose cost function C and revenue function R are given. C(x) = 16x + 10,000; R(x) = 21x

225. ## /axia

a rectangular with a width of x centimeters has an area of centimeters. x^2 + 50x centimeters. Find the Binomial that resperents the length

226. ## economics

What did the study described in “The Value of Human (?) Capital” train low ranking monkeys to do?

227. ## physics

What average force is needed to accelerate a 6.00-gram pellet from rest to 110 over a distance of 0.800 along the barrel of a rifle?

228. ## geography

No question! Just a huge THANKS! For all the help! I know I'm on my own for Tests and since I am trying to maintain an A average I want to make sure I stay on the right track!!!! Homework counts as a big part of our overall grade. THANKS AGAIN!

229. ## English

is Polonius a good advisor to the king in Hamlet? please help me, its for a essay, your help is greatly appreciated. THank you!!

230. ## Physics

Someone places a box weighing 299.7 N on an inclined plane that makes a 43.5◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.

asked by The Owl
231. ## math 12

Using f(x) = x(4-x) write the equations of a) f(-2x) b+ -f([1/2]x)

232. ## Math I have tried it and tried it

I have tried several times to find the vertex, line of symmetry, max/min value of the quadratic function. f(x)=-2x+2x+8 I know I have to do completing the square to answer this but everytime i try to follow the steps I stumble hard! a(x-h)^2+k x= -b/2a