# Questions Asked onFebruary 25, 2009

1. ## Physics

three identical 2*`0^-5C point charges are placed a the corners of an equilateral triangle pf sodes 1m. The triangle has one apex C pointing up the page and 2 base angles A and B. Deduce the magnitude and direction of the force acting at A thanks!

2. ## science

is Texas east or west of arizona?what is a longhorn steer and what does it look like?how long have ranchers been raising cattle in the US?

3. ## College Algebra

verify the identity. cotx secx sinx=1

4. ## math

The question is as followed: Express (rootP + 2 x rootQ)(rootQ - rootP) This is what I did: (rootP + 2 x rootQ)(rootQ - rootP) = rootPQ - p + 2q - 2 x rootPQ = - rootPQ - p + 2q Did I do this right and is this what the question was asking?

5. ## accounting

Marvin is planning to open a fabric dyeing business. He plans to do large scale dyeing of both fabric bolts and ready-to-wear garments. The source of business will be garment makers and cleaners. He has worked in this part of the fashion industry and knows

6. ## physics

A beam of electrons enters a pair of croseed electric and magnetic fields in which the electric field strenght of 3.0*104 V m^-1 and magnetic flux density of 1*10^-2 T. If the beam is not deflected from its path by the fields, what must be the speed of the

7. ## chemistry

hypothesis of reation between iron and sulphur

8. ## Physics

I need help with this physics problem: A child slides down a playground slide; the coefficient of kinetic friction is uk=0.25, and angle that the slide makes with the horizontal is 28.0 degree. She begins from rest and slides through a vertical height of

9. ## precalc

given e^x=1+x+x^2/2!+x^3/3!+... how do you prove that lim((e^(h)-1)/h)=1 as x->0

10. ## 4th grade

I have to answer questions about Parts of a nonfiction book. example:second entry in index Where on line can I find a book that I can look in the entire book.

11. ## accounting

Can anyone let me know if I have these correct and if not what am I doing wrong. 1. For each of the following items, indicate whether its amount (i) affects the bank or book side of a bank reconciliation and (ii) represents an addition or a subtraction in

12. ## chemistry

what are the symmetry elements for: cis-CoCl2(NH3)4 and trans-CoCl2(NH3)4 would it be C2 S2?

13. ## Spanish

Can someone please check my work? List three items you have in your backpack for your morning classes. En la mochila tengo: - la pluma - el lápiz - el papel Answer the following questions about yourself and your classroom in complete sentences. 1. ¿Cómo

14. ## 10th grade English

Remaining essays I had trouble posting my essay in one go. please correct them and any suggestions will be helpful Oh, Leonie, isn¡¯t it hard making contact with other people in this kind of place? Everyone¡¯s enjoying themselves but, I don¡¯t know,

15. ## language- swedish

i really would like to learn swedish. if anyone could help me, id really be greatful and in return, i could help with english or german. thankyou!

16. ## Physics

Two converging mirrors of focal length 30 cm are 15 cm apart. If an object is placed 1 cm from mirror one, how far from mirror two will the second image be?

17. ## science

barnacles, rockweeds, smooth periwinkles ------> A) splash zone green sea urchins, sponges, brittle starfish -------> B) middle shore rough periwinkle, algae -------> C) lower shore patches of lichens -------> D) upper shore

18. ## Economics

Given the demand curve Q = 200 -4p Graph the demand curve showing exactly where it cuts the axes. How much is demanded at a price of \$10? \$11? \$9?

19. ## Economics

Assume the demand curve for concert tickets is Qd= 300 - c*p and the supply curve is Qs= p - 20 (quantity expressed in thousands of tickets) What is the equilibrium price and quantity What are the consumer surplus and the producer surpluses.

20. ## Chemistry

I did an experiment to determine the freezing point depression and then find the molecular weight of the unknown solute added to the solvent, what would be the effect on calculating the molecular weight if some cyclohexane(my solvent) evaporated while the

21. ## college chemistry

How do I name the following compounds; K2S2O8, S2O8{-2}, Na2S2O3 and S2O3{-2}

22. ## Government

What is a Basic Legislation and an example?

23. ## Science-help needed

A letter R on a piece of paper is observed under a microscope. The image observed is vertically inverted and laterally inverted. Why? What is the science definition of laterally inverted? Thanks a lot.

24. ## Statistics

In an analysis of test results from the YSORT gender selection method, 152 babies are born and it is assumed that boys and girls are equally likely, so n=152 and p=0.2.

25. ## math

12+9*(17+2^4)-5=

26. ## college algebra

Solve the problem. A man rode a bicycle for 12 miles and then hiked an additional 8 miles. The total time for the trip was 5 hours. If his rate when he was riding a bicycle was 10 miles per hour faster than his rate walking, what was each rate?

27. ## college alegebra

Solve the problem. The volume V of a gas varies inversely as the pressure P on it. The volume of a gas is 240 cm3 under a pressure of 23 kg/cm2 What will be its volume under a pressure of 30 kg/cm2?

28. ## Future Value/Present Value Problems

A) Serene Williams Corporation having recently issued a 20 million, 15 year bond issue, is committed to malke annual sinking fund deposits of 600,000. The deposits are made on last day of eac year and yield a return of 10%. Will the fund at the end of 15

29. ## Future/Present Value Problems

B) Immediate Bonus= 40,000 Deferred Bonus= 70,000 payable in 10 yrs, relevant interest rate is 8%.. (ignore tax considerations) Which form of settlement should be accepted 70,000/10=7000 per yr 7000*.08=560 7000-560=6640 6640*10=66400 Is that right?

30. ## Chemistry

If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ My answer & reason: solution A has a smaller molecular weight and therefore, a larger Molarity and higher osmotic

31. ## biology

a fatty acids is most closely associated with what?

32. ## Chemistry

If the same solute is dissolved in two different solvents to the same concentration and the same temperature, the osmotic pressure ____ will be the same for both. will be different. may be the same or different, depending on the solute. will be lower in

33. ## chemistry

Which of the following can be determined if the boiling-point elevation, the mass of solute and the molality of a given solution are known. The identity of the solute The polarity of the solute The size of a molecule of the solute The molecular weight of

34. ## Math/Geometry

A correct answer will yield me an "A" all SEMESTER, so help is appreciated Question: Can you find a pythagorean triple whose nonhypotunese legs aren't divisible by 12? Whatever the answer, yes or no, it must be proven.

35. ## College Algebra

A rectangular swimming pool is 8 meters long and 12 meters wide. A tile boarder of uniform width is to be built around the pool usinjg 120 square meters of tile. How wide should the boarder be? Round anser to the nearest hundredth.

36. ## French II

Will someone check my paper? I wrote an English translation in case something is confusing. Si je pouviez revenir en arrière et changer un événement, je ne pourriez pas changer un événement historique. Je changerais quelque chose qui est mauvais, mais

asked by S. H.
37. ## year 8 geography

what does development mean in geography? thankyou!

38. ## Government

what are the two steps involved in the second method of amending the Constitution?

39. ## Health

Where can I find information concerning the vaccines required for children going to private schools? I found the requirements for public schools in the CDC website, but haven't been able to find it for private schools. Do you know if they are the same as

40. ## algebra-need quick

solve the system by addition method 7x^2+y^2=49 7x^2-y^2=49

41. ## math

solve the system of equation 5x+2y+z=-25 5x-3y-z=-23 3x+y+2z=-9

42. ## Math/Geometry

A correct answer will yield me an "A" all SEMESTER, so help is appreciated Question: Can you find a pythagorean triple whose nonhypotunese legs ARE NOT divisible by 12? That is to say that triples like 3,4,5 would not work because a(3)xb(4)=12/12=1 meaing

43. ## math

6^2x + 1 = 1 3

44. ## government

What would be the potential political costs and benefits (nationally and internationally) of removing the import tariffs and subsidies (like on sugar or wheat?)

45. ## English

Can you identify Tense/grammar point of the following. 1. last weekend I went to the beach with a friend. 2. The delivery will have arrived by next Sunday 3. She is studying French at night class I’ll get the phone 4. You should study on a regular and

asked by Tony KC

9+6(8-5)=x

47. ## English

Can you identify Tense/grammar point of the following. 1. We are playing football on Saturday afternoon 2. Mozart had mastered the piano by the time he was six 3. You said that you were busy 4. Sorry – I’ll be washing my hair! 5. I have been studying

asked by Tony KC
48. ## Math's

Please can you help me answer there questions? You have to do the sum's in the bracet's first. 2 (4a+7) 3 (2f+B) 5 (7+2x) 6 (2b-6) 12(6q-4) Thank's for helping!

49. ## math

solve by substitution method x^2=y^2+39 x-y=3

50. ## Algebra

Solve the following system of linear equations: 2x - 3y + 6z = -12 5x + 2y - 8z = 29 7x + 6y + 4z = 49 First, I did elimination for the first two equations. I multiplied the first equation by two, and the second equation by 3. 4x - 6y + 12z = -24 + 15x +

51. ## Guru Blue

Happy to send all the best I have done to date and have you take a look. Have not enought funds to do with tutor and would realy appreciate input, critisisms, corrections etc. Up against the clock and must sit in two days. How can I contact you to explain

asked by Tony KC
52. ## 2nd grade

can you please help me with my project its about different types of Transportation eg water transportation, land trasportation and air transportation i found out land and water but cant fine anything about AIR can you please help me as my project is due

53. ## Algebra

find the indicated sum not sure how to type the sigma sign, but here is the problem 6 on top of the sigma sign. under the sigma sign is i=3 and on the right side of the sigma sign (3i-2)

54. ## medical terminology

within + heart +inflammation.. whats the medical term?

55. ## chemistry

Can you tell me why ketones and aldehydes don't bond with hydroxyl groups?

56. ## 4th grade

how do i write about Air transportation in a project form i cant seems to find nothing.

57. ## Social Studies

am doing a project on air trasportation I know I should write about planes and jets hot air balloons and helicopter...but I cant seems to find the answers on the internet can somone please help me.

58. ## Guru Blue unit 2

So this is realy most of unit 6 but how much of my work do you wish me to give those that may be looking for the shortcuts and don't have the extenuating curcumstances. Would be better to do this private somehow. WORKSHEET - UNIT 6 Task 1 – Identify the

asked by Tony KC
59. ## Guru Blue 1

Ok Guru I been working hard on this so lets see if this little engine here can handle all this text. Following if the system allows are all the questions accompanied by answers and notes of what I have so far. I will say the shortcut try was because

asked by Tony KC
60. ## Physics

Can the magnitude of a magnetic field be negative? If we consider an electron in a mag field, using r=mv/qB, the negative charge on the electron gives a negative answer. Do I drop the minus sign?

61. ## acc

Can anyone let me know if I have these correct and if not what am I doing wrong. 1. For each of the following items, indicate whether its amount (i) affects the bank or book side of a bank reconciliation and (ii) represents an addition or a subtraction in

62. ## Math

A tennis court is 6 yards wide and 10 yards long. A football field is 60 yards wide and 110 yards long. How many tennis courts fit onto the football field?

63. ## Trigonometry

Find the average rate of change for the function between the give values. f(x)=-4x + 8; from 1 to 2

64. ## Math

how do you find the mean of 98 89 46 32 and 81?

65. ## biology

would you receive more energy from corn by eating it directly or by eating the same mass of beef from a cow that had been fed on corn? i don't understand this one help please? thanks!

66. ## Math

find the mean of 98 89 46 32 and 81?

67. ## Gure Blue

My dearest Guru, Thank you for your kind comments. I am sorry if I appeared serious, anxcious, frustrated, paniced and any other emotion that my have come accross in any offencive or disrespectfull way. I have had a bit of a month though. House flooded,

asked by Tony KC
68. ## calorimetry

if 158 grams of silver at a temperature of 98.5 degrees celcius is placed in a styrofoam cup of 85 grams of water at 13 degrees celcius, what would the final temperature of the water be in two minutes

69. ## english

what are some highlights of scout that i could put in a scrapbook?

70. ## Social Studies

What did Horace Greeley think about slavery and what kind of community did he think America should be? I researched him and found out that he wants to abolish slavery but my teacher wants us to explain in detail. thanks:)

71. ## Thank You Guru Blue

Thanks Guru, You have helped more than you may ever know. You are an inspiration and I truely mean that with the utmost sincerity. Thank you. :)

asked by Tony KC
72. ## Math

This is the question. In 1991, an American, Ann Trason, set a world record by running 100 km in 7hr,50min,09sec. What is the best estimate of her average speed? A.12 km per hour B.14 km per hour C.16 km per hour D.18 km per hour how do u figure this out?

73. ## Math/Standard and scientific notation

Express each measure in standard form. (One more thing by the way you need this few prefixes) Tera= 10 to the 12th power Giga= 10 to the 9th power Mega= 10 to the 6th power Kilo= 10 to the 3rd power Pico= 10 to the -12th power Nano= 10 to the -9th power

74. ## elar

can ya help me i need a summaryreflection on the junkyard dog plz help me

75. ## English Writeteacher

Can you proofread this for me please? Mr. Johns has demonstrated some very unique findings about physical therapy through different research and projects. Michael has developed a seminar curriculum and has done many clinical assignments at different

76. ## FRENCH

On dit, je crois, "vous ne m'avez pas compris: (you did not understand me). But, if I want to say "Didn't you understand me", is it: "ne m'avez-vous pas compris?" Merci!!

77. ## Social Studies

Can you give me a list of adjectives that descirbe trench warfare?

78. ## Algebra

Find all solutions to the following system of equations: x + 3y + 2z = 6 -3x + y + 5z = 29 -2x - 3y + z = 14 This just did not work out for me. Here is my work: I first solved Equation #1 for x. x = -3y - 2z + 6 Then, I did substitution, and replaced x for

79. ## Social Studies

What were the main causes of World War 1

80. ## Chemistry!

The rate constant for a certain reaction is k = 5.00×10−3 s-1 . If the initial reactant concentration was 0.950 M , what will the concentration be after 8.00 minutes?

81. ## CHEMISTRY!

A zero-order reaction has a constant rate of 3.40×10−4 M/s. If after 80.0 seconds the concentration has dropped to 6.00×10−2 M, what was the initial concentration?

82. ## Math

Okay. So i am getting frusterated I was given a math sheet. On it has the anwsers. I have tried to get my answer to match up, but I can't get it. COuld somebody please help me? 10-(2y-6)-y y is 8 *The answer is -8.* Thanks!!

83. ## 6th grade geometry

list the next 7 polygons after pentagon..

84. ## English

I need an attention grabber for my essay about comparing 2 genres of media, a TV news show and a gossip website. Can anyone help me with an attention grabber, I've basically written the whole essay already I just need a really good attention grabber... Any

85. ## English-Ms.Sue

Thank you for all of your help on guiding me through on my war as a social disease essay. I really appreciate it. We got assigned a new essay and it's an arugumentive essay and it's on cloning. I need three sub-categories for cloning. I don't know what he

86. ## algebra

In the magic square shown (I'll type it out), the sum of the numbers in each row, column, and diagonal are the same. Five of these numbers are represented by v,w,x,y, and z. Find y + z. Here's what the magic square looked like. I'll type semi-colons to

87. ## Math

Is there an easy way to find a pattern in a function table, so you can write a function rule? Or is there no easy way, you have to keep on guessing, by observing the table?

88. ## 2nd grade oral report

My daughter is eight years old and in 2nd grade. She has to do a 3 minute oral report. She is doing it on a famous sports person. We read the book, and she has to dress in character. She is taking in her soccer ball. She is allowed to use note cards. They

89. ## college

how do you find the theoretical range of girl to boys in a class 2/5 to 1/5

90. ## 7th grade math

What is the order of the numbers from least to greatest? 4.3, 4/1/2, 4/1/3, 4.45, 4.25

91. ## social studies

What was the name group of men who were supposed to send food and clothes to George Washington and his troops?

92. ## physics

A beam of light is incident on a flat piece of polystyrene at an angle of 55 degrees relative to a surface normal. What angle does the refracted ray make with the plane of surface? thank you

93. ## Child Care

During a science activity,you overhear a colleague asking a group of children, "How many different ways can you think of to build a bridge that will hold this weight? This conversation is an example of A. a divergent question B.a convergent question

94. ## Com 150

I am having problems with week 5 assignment, Documenting Sources. Do I use my final project topic or do I choose another one?

95. ## 7th grade math

What is 4/2/5 as a decimal?

96. ## Math

Simplify this expression: (3k^3+2)(k+5k^2)

97. ## 7th grade math

Simplify: (10+4)divided by 2+32 divided by 2 to the third. A) 4/7/8 B) 6/1/2 C) 11 D) 12/1/3

98. ## Math

Show me how you find the product of this expression: (2x-5)(2x-3)

99. ## SOSE

Help me! What makes Romeo and Juliet so special?

100. ## 7th grade math

Doreen had 15 yards or string she used 11 ft of string to some boxes together. what is the total length of tring that doreen has left? 1)14 yd 1ft 2)11 yd 1 ft 3)9 yd 1 ft 4)4 yd PLEASE HELP IM CONFUSED :-(

101. ## Math

How do you solve this: A 20-ounce bag of popcorn costs \$2,80. If the unit price stays the same, how much does a 35-ounce bag of popcorn cost?

102. ## Math

Ms. Snyder wants to buy a television at an electronics store. All televisions at the store are 3/4 of the original price, p. She has a \$40 discount coupon she will use during the sale. What equation should Ms. Snyder use to find the final price, f, of a

103. ## Math

A plate glass window measures 5 ft by 8 ft. If glass costs \$6 per square foot, how much will it cost to replace the window?

104. ## college algebra word problem

A goldsmith has two alloys that are different purities of gold. The first is 3/4 pure and the second is 5/12 pure. How many ounces of each should be melted and mixed in order to obtain a 6 oz mixture that is 2/3 pure gold?

105. ## Math

A shipping container is 6 ft by 5 ft by 4 ft. What is its volume?

106. ## algebra

An employer has a daily payroll of 1225.00 when employing some workers at 80.00 per day and others at 85.00 per day. When the number of 80.00 workers increases by 50% and the number of 85.00 workers is decreased by 1/5, the new daily payroll is 1540.00.

107. ## calculus-optimazation

The sum of the perimeters of an equliateral triangle and square is 10. Find the dimensions of the triangle and square that produce a minimum total area.

108. ## socal studys

the opening statement of the constitution is called the

109. ## writing

i have to unscrammble this word. the letters are eihmlyebt the question that comes with it is if this sign is on my dressing room door what am i?

110. ## Math

Tai went to a shopping mall. He spent \$25.75 on a chirt, \$15.49 on a hat and \$9.95 on a poster, before tax. tax was 8.25% on all purchase. What was the total cost of tai's purchases, including tax? How do I do this?

111. ## physics

A 16.0 ohm and a 24.0 ohm resistor are connected in parallel. A difference in potential of 32.0 V is applied to the combination. What is the equivalent resistance of the parallel circuit? What is the total current in the circuit?

(3n+2)/2

113. ## physics

A 16.0 ohm and a 24.0 ohm resistor are connected in parallel. A difference in potential of 32.0 V is applied to the combination. What is the equivalent resistance of the parallel circuit? What is the total current in the circuit?

114. ## us history

what economic intrests did americans have in hawaii

115. ## Math

Flor is putting a fence around a field. The field is rectangular and measures 9.84 yards (yd) long and 16.69 yd wide. How much fence must Flor purchase?

116. ## math

Marks dog buried 1/2 of his bones in Josh's backyard. He buried 1/3 of his bones in kaylees backyard. he still had 4 bones left to bury. How many bones did Marks dog have in all.

117. ## social studies

what are some duties of government that might affect the economy?

118. ## Poetry

I was going to write a poem on Motherhood as I think it is a beautiful and vast subject. Anyone know which way I should start? (I want it to be a rhyming poem) Thanks for the help! -MC

119. ## Math

Well in school we were reviewing percents, and one of the main things being discussed was how to convert between fractions, decimals, and percents. However I didn't understand how she explained converting fractions to decimals. She said that on the test we

120. ## Math

I have the answer to this question but I have no idea how to get there. Solve for all values of x if 0¡x¡2¥ð. cos©÷(4x)+cos(4x)=0 The answer I have is: x=¥ð/8, 3¥ð/8, 5¥ð/8, 7¥ð/8, 9¥ð/8, 11¥ð/8, 13¥ð/8, ¥ð/4,3¥ð/4, 5¥ð/4, 7¥ð/4

121. ## Physics 30

State the quantities that are conserved in one-d and two-d collisions. Give an example of each type of collision. I looked in my textbook and all i could come up with was that momentum was conserved for both?

122. ## Math

How do you figure out the csc(-390deg)? Thank you very much!

123. ## Math

are you good with times? I am struggling with studying with times so help me: The first walker to finish the 12 miles crossed the finish line 3 hours after the offical starting time of 10:00 a.m. At what time did the first walker finish? The judges left

124. ## Child Care

Some fo the children in your care are overweight. The most immediate and appropriate thing you can do about it is..... A.provide snacks, but only as a reward for good behavior B.talk to the parents about a special diet C.provide more opportunities for

125. ## 3rd grade

Have to create a diary entry using the same characteristics from the song, "diary" by David Gates? Not sure how to approach. Please help. Thank you

126. ## 5th grade

Jims dog buried 1/2 of his bones in Marks backyard. He buried 1/3 of his bones in Jeans backyard. He still had 4 bones left to bury. how many bones did jims dog have in all.

127. ## child development

what is the male sex cell?

128. ## Math

Write the ratio of 3 nickels to 3 quarters in simplest form

129. ## science

the force of gravity on any object is called what

130. ## Chemistry

Hi! I need help with the step by step procedure for chemical equilibrium problems. Here is an example: Given two reactions: a. PbCl2 Pb^(2+) + 2Cl^(-) K = 1.76*10^(-10) b. AgCl Ag^(+) + Cl^(-) K = 1.11*10^(-4) What is the equilibrium constanct K(final) for

131. ## Math

I know the answer to this problem but I have no idea how to get there. Solve for all values of x if 0 is less than or equal to x, which is less than or equal to 2pie. (cosine squared of 4x) + (cosine of 4x)=0 The answer is: x= pie/8, 3pie/8, 5pie/8,

132. ## Math

A circular path around a lake has a diameter of 2,000 feet (ft). Pranotti jogs around the path 5 times for her morning run. How far does she run? Use 3.14 for ƒàƒnand round your answer to the nearest foot

133. ## science

if an organism expresses a recessive phenotype can you tell the genotype? Explain your answer by giving an example. i cant understand how or what a good example is. please help thanks

134. ## math

marks dog buried 1/2 of his bones in Jeans backyard. He buried 1/3 of his bones in Mitchell backyard. He still had 4 bones left to bury. how many bones did Marks dog have in all.

135. ## science urgent

What role does water play in erosion, weathering or deposition?

136. ## physics

A soccer ball with mass 0.410 kg is initially moving with speed 4.30 m/s. A soccer player kicks the ball, exerting a constant force of magnitude 44.0 N in the same direction as the ball's motion. Over what distance must the player's foot be in contact with

137. ## Algebra 2

how do not understand how to do this Log X + Lob (X-3) = 1 I know I do this Log X(X-3)=1 then I do this Log X^(2) - 3X = 1 then I do this 2 Log (X-3X) = 1 then 2 Log (-2X) = 1 then (2 Log (-2X) = 1)(1/2) Log (-2X) = 1/2 then (Log (-2X) = 1/2)(-1/2) Log X =

138. ## math

i'm studying for a test and i've just got a few questions.. 1-If x^2+8x+m has one double root then m=? and the vertex is? 2-I got -3-i(s.r)5 / 5 for this problem-> -15-(s.r)-125.. is that correct? 3-Is the answer for (5-3i)^2 -30i+ 16 ? 4-is the answer to

139. ## Chemistry

Question: The equilibrium constant Kc for the equatino CS2(g)+ 4H2(g) goes to CH4(g)+2H2S(g) at 900 degree's C is 27.8. What is the value of Kc for the following equation 1/2CH4(g)+H2S(g)goes to 1/2 CS2(g)+ 2H2(g). I'm not sure what to do. the only thing i

140. ## physics

a golf club exerts and average force of 1000N on a 0.045-kg golf ball which is initially at rest. the club is in contact with the ball for 1.8ms. what is the speed of the golfbal !@#\$%^& it leaves the tee? a batter applies an average force if 8000N to a

141. ## WORLDS HARDEST S.S

What actions did president washinton take to secure the territory in the west?

I need your opinion on something. If you are a boy please refer to a girl. If you are a girl please refer to a boy. Ok now if you are doing a play for Romeo and Juliet and you had the opposite gender would you sound like yourself or would you try to sound

143. ## Algebra

y = -x + 2 y = x - 4

144. ## physics

two different masses have equal, non zero kinetic energies. the momentum of the smaller mass is? what is the magnitude of momentum of a 0.140 baseball traveling at 45.0m/s? a 2.00g bullet hits and becomes embedded in 5.00 kg wood block which is hanging

145. ## chemistry

Two solutions are prepared. In Solution A, 5.0 g of a substance of molecular weight 50 is dissolved in 100 mL of pure water. In Solution B, 5.0 g of a substance with molecular weight of 75 is dissolved in 100 mL of pure water. The solute is non volatile

146. ## 8th Grade Algebra- Answer Check

Solve each system of equations, give the solution and state whether there are no solutions or many solutions. 1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y =

147. ## human services

I need help with identifying the elements of an effective program plan through out an evaluation

148. ## earth science

What are the main basic thing that we need to know about erosion? some are like the agents, running water .... and please tell me some more...

149. ## Geography

Was Atlantic Canada the periphery or the core?

150. ## math

what multiplication fact can you double to find 4X7?

151. ## algabra1

x=y+3 2x-4y=6 its solving systems with substition

152. ## math

how do you find % of change

153. ## Science

How does the earth's tilt affects how directly light reaches different parts of the earth?

1 )3x + 8y = 1 7x + 4y = 17 Answer: (3,1) 2) -3x + 5y = -7 9x + 2y = 38 Answer: (4,1) 3) 7r + 3s = 13 14r - 15s = -16 Answer: (1,2) 4) 2x - 7y = 42 4x - 14y = 64 Answer: No Solution ?? 5) 9x + 12y = 15 3x + 4y = 5 Answer: Identity ?? 6) 2 = 4s - 3t 2 = 12s

155. ## not sure wat subject

i need two examples of situations where you would think help/charity should be given but it didn't happen as you thought

156. ## math

How would you convert something like: 13 7/8 % or 14 2/3 % into a decimal? Could you please explain the steps? Thank you.

157. ## math

number sence. what multiplication fact can be found by using the arrays for 2x9 and 5x9 ?

158. ## earth science

what are basic things that we should know about deposition?

159. ## Chemistry- please check my work

Question: The following equilibrium was studied by analyzing the equilibrium mixture for the amount of HCL produced. LaCl3(s)+ H2O(g) goes to LaOCl(s)+2HCl(g). A vessel whose volume was 1.25L was filled with 0.0125 mol of lanthanum (III)chloride and 0.0250

160. ## physics

A mass of .50 kg attached to a vertical spring stretches the spring 37 cm from its original position. The accel of gravity is 9.81 m/s2. What is the spring constant?? Answer in units of N/m

161. ## Math

which of the sets of points are collinear and lie on (2?

asked by John Jones
162. ## math

reverse distribution 8x+28-16y 3x+21+15y

163. ## accounting

Can anyone let me know if I have these correct and if not what am I doing wrong. 1. For each of the following items, indicate whether its amount (i) affects the bank or book side of a bank reconciliation and (ii) represents an addition or a subtraction in

164. ## statistics

In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their first try, Lately, the availability of exam preparation books and tutoring sessions may have improved the likelihood of and individual's passing on his or

165. ## Accounting

*I don't know where to begin, please HELP* Use the following adjusted trial balance of Webb Trucking Company to prepare a classified balance sheet as of December 31, 2005. Account Title Debit Credit Cash . . . . \$ 7,000 AR . . . . . 16,500 Office Supply

(.200-x)2 Would the answer be .400+x2

167. ## lit or com

complete each analog COMMIT is to COMMITMENT as EQULP is to...

168. ## 8th Grade Algebra

1) An exam will have 20 questions worth a total of 100 points. There will be True-False questions worth 3 points each and short essay questions worth 11 points each. Several students ask how many essay questions there will be, but the teacher won't tell.

169. ## intro chemistry

Can you tell me why ketones and aldehydes don't bond with hydroxyl groups? I posted earlier but no one has answered , common I am sure there is a wizard out there, I keeep looking but can not locatethe amswer.Thanks so much

170. ## Chemistry

Question: Antimony (V) chloride, SbCl5, dissociates on heating to SbCl5(g)goes to SbCl3(g)+ Cl2(g). A closed 3.50 L vessel initially contains 0.0125 mol SbCl5. what is the total pressure at 248 degree's C when equilibrium is achieved? The value of Kc at

171. ## 3rd grade

if sam has 5 dollars and buys something for for 4.28, what would the dollar amount be of the change?

172. ## physics

An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5400 m when it drops a package. How far ahead of the target along the x direction should the plane be when it releases the package?

173. ## physics

two different masses have equal, non zero kinetic energies. the momentum of the smaller mass is? what is the magnitude of momentum of a 0.140 baseball traveling at 45.0m/s? a 2.00g bullet hits and becomes embedded in 5.00 kg wood block which is hanging