Questions Asked on
December 8, 2010

  1. College Chemistry

    Which solution would have the lowest freezing point, 0.500 M NaCl or 0.500 M CaCl2?

    asked by Sa ndra
  2. College Chemistry

    A 50.0 mL sample of 6.0 M HCL is dulited to 200.0 mL. What is the new concentration of the acid?

    asked by Sa ndra
  3. Math

    Losing your bags during airline travel is not all that uncommon. Recently, an airline was sited for losing customers' baggage 8% of the time. A test is conducted by randomly selecting 14 customers for that airline and observing whether they had lost their

    asked by Courtney
  4. Physics

    A 10N meterstick is suspended by two sping scales, one at the .08 m mark and the other at the .9 m mark. If a weight of 5N is hung at the .2 m mark and a weight of 17N is hung at the .55 m mark, what will be the reading on each scale? I have:

    asked by Jennifer
  5. Physics

    Two straight and parallel wires of length 1.0 m carry a current - the first carries a currecnt of 9.0 A while the other wire carries a current of 4.0 A. What distance must separate the two straight and parallel copper wires if the force between them is to

    asked by Jim
  6. math214

    x/2+y/3=1 4y-3x=2

    asked by Anonymous
  7. MATH

    What is the index of a radical? When working with radicals, can the radicand be negative when the index is odd? Can it be negative when the index is even? Why is it important to simplify radical expressions before adding or subtracting? How is adding

    asked by Anonymous
  8. MATH/FINANCE

    If DOL is defined as DOL=Percentage change in OCF/Percentage Change in Q please derive equation: DOL=1+FC/OCF? I need this by tomorrow...please help.

    asked by Anonymous
  9. FINANCE/MATH

    Please use both M&M proposition II with taxes equation and WACC equation to derive the following equation:? WACC = Ru X [1- Tc(D/V)]? I need this by tomorrow please help.

    asked by Anonymous
  10. Physics

    A ladder of mass M and length 2 m rests against a frictionless wall at an angle of 47 degrees to the horizontal. The coefficient of static friction between the ladder and the floor is 0.5. What is the maximum distance along the ladder a person of mass 13M

    asked by applebottom
  11. Physics

    A uniform meter stick of mass 40 g is used to suspend three objects as follows: 20 g at 0.13 m, 25 g at 0.41 m and 40 g at 0.64 m. Where could you place your finger to balance the stick in the horizontal position?

    asked by applebottom
  12. Math Finite

    How many years will it take for $12,000 to grow to $15,000 at 5.75% compounded monthly?

    asked by Ericka
  13. Chemistry (URGENT)

    What property of paradichlorobenzene may convince you that it is an ingredient in mothballs? Please help. I have no idea. I did search up mothballs and (PDB) is an ingredient but I don't know what property of PDB convinces that it's an ingredient. Any help

    asked by John
  14. childhood obesity

    what are some question you can ask to a child that is overweight?

    asked by kate
  15. Basic Electronics

    discuss your thoughts on the use of thevenin equivalent circuit.

    asked by Dan
  16. chemistry........help!! =)

    One brand of laundry bleach is an aqueous solution containing 4.00% sodium hypochlorite (NaOCl) by mass What is the molarity of this solution? (Assume a density of 1.02 g/mL .)

    asked by Lisa, Help needed!
  17. Algebra

    I am stuck... find the real solutions of the equation x to the 4th power minus 20x squared plus 64 equals 0

    asked by Kyle
  18. Please help Math

    If the corressponding angles of 2 polygons are congruent and the lengths of the corresponding sides of the polygons are proportional the polygons are.. a. Regular b. Congruent c. Symmetrix d. Similar

    asked by Please help
  19. Find the maximum value of this function

    f(x) = 9 sqrt(x)e*(-x)

    asked by Mike
  20. italian

    A )Completare le farsi con il pronome personale opportune e con le desinenze del participio passato. 1-ALESSIA HA VINTO IL PRIMO PREMIO? ____GLI________ TELEFONO SUBITO E ____GLI _____DICO , SARA FELICISSIMA. 2- DEI COMPAGNI DI CLASSE HO RIVIST_O__SOLTANTO

    asked by julia
  21. italian language

    A )Completare le farsi con il pronome personale opportune e con le desinenze del participio passato. 1-ALESSIA HA VINTO IL PRIMO PREMIO? ____GLI________ TELEFONO SUBITO E ____GLI _____DICO , SARA FELICISSIMA. 2- DEI COMPAGNI DI CLASSE HO RIVIST_O__SOLTANTO

    asked by julia
  22. geometry

    ________________________________________ ( 4.) Given u= i+3j-2k and v=4i-2j-4k Find u.v

    asked by banjo
  23. social studies

    In what ways did Europeans' desire for trade with Asia affect the western hemisphere?

    asked by andrea
  24. chem

    1. Explain the effects of the following factors on the relative reactivities of Sn1 and Sn2 reaction a.Nature of the carbon skeleton(primary, secondary, tertiary) b.Steric hindrance (primary vs hindered primary) c)Nature of the leaving groups d)Primary and

    asked by Anonymous
  25. Statistic

    The number of customers who enter a supermarket each hour is normally distributed with a mean of 600 and a standard deviation of 200. The supermarket is open 16 hours per day. what is the probability that the total number of customers who enter the

    asked by Tony
  26. math

    To figure out the cost to ship a package, George has a chart with pounds and ounces. Kai wanted to ship a 90 ounce package. For how many pounds must George charge Kai?

    asked by Claudette
  27. math,probability

    Find the generating functions of a)p{x

    asked by Joan
  28. physics

    A stock room worker pushes a box with mass 11.2 kg on a horizontal surface with a constant speed of 4.50 m/s. The coefficient of kinetic friction between the box and the surface is 0.25. a) What horizontal force must be applied by the worker to maintain

    asked by Yosh
  29. Math

    A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume that the only force affecting the projectile during flight is from gravity which produces a downward acceleration 32 ft/sec^2. Find

    asked by Marina
  30. Physics

    A projectile is fired straight up from a cliff which is 200 feet above ground with an initial velocity of 220 ft/sec. Assume that the only force affecting the projectile during flight is from gravity which produces a downward acceleration 32 ft/sec^2. Find

    asked by Marina
  31. math

    what is the divisible of 215 and 48

    asked by alexis joan
  32. chemistry-URGENT!!

    A sample of ammonina gas at 65.5 degrees celsius and 524 torr has avolume of 15.31 L. What is it's volume at -15.8 degrees celsius and its pressure is 524 torr?

    asked by lavonne
  33. Chemistry-PLease help!

    What is the density of CO2 gas at -25.2 degrees celsius and 98.0kPa?

    asked by lavonne
  34. Honors Biology - URGENT!!!

    Remember that the greater the concentration of hydrogen ions, the lower the pH of a solution. How do you suppose the pH of the solution in the thylakoid space compares with the pH of the solution in the stroma? What is responsible for the difference?

    asked by Brenda
  35. Honors Biology - URGENT!!!

    ATP is used to power the movement of your muscles as you turn the pages of a book. Where did the energy in the ATP come from? Trace the energy in the ATP molecule back to the sun.

    asked by Brenda
  36. Honors Biology - URGENT!!!

    After a biochemical analysis of the victim's tissues, brilliant biologist/criminal investigator J. C. Mickleberry announced his findings: "Contrary to the conclusions of the police, the victim did not suffocate. The electron carriers in his mitochondria

    asked by Brenda
  37. Honors Biology - URGENT!!!

    Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. When oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops?

    asked by Brenda
  38. Honors Biology - URGENT!!!

    In an experiment, plants were grown under colored filters that allowed equal amounts of light of different colors to strike different plants. Under which filter do you think plants grew the slowest? Why?

    asked by Brenda
  39. geometry

    If the bases of an isosceles trapezoid have lengths of 16 and 28, what is the length of the median? If necessary, round your answer to two decimal places.

    asked by Anonymous
  40. biology

    What regulary hit the earth for the first 600 million years of existence? What do scientists call this period of time? - Aseroids, and meteors hit the earth.What do scientists called this period of time ? I need help answer this question please. If the

    asked by joy
  41. Math

    Find all the vectors that are perpendicular to (1,4,4,1) and (2,9,8,2).

    asked by Drake
  42. Math

    At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product

    asked by Rena
  43. Math

    How do we know the ith of an invertible matrix B is orthogonal to the jth column of B^-1 , if i is not equal/unequal to j?

    asked by Nolan
  44. college chemistry

    Discuss in detail, one way in which atomic nuclear decay takes place. What is the significance of atomic nuclear decay? Analyze the societal implications of using this process.

    asked by jane
  45. college chemistry

    At a prominent state hospital, a 45-year-old woman is receiving a ‘combined modality' treatment for the initial stage of breast cancer. State the two aspects included in this treatment. State the methods by which a radiation oncologist can administer

    asked by jane
  46. math

    what is 4 times 3

    asked by lolo
  47. math

    if bill has 11 fiends for pizza each person gets 1/4 a pizza how many pizzas should he order

    asked by Anonymous
  48. Bio

    As a scientist, you are assigned the task of finding out if the disappearance of a particular fish species from a lake in the Northwestern United States is due to acid rain resulting from industrial air pollution. Identify alternative hypotheses that could

    asked by Anonymous
  49. math

    a right 90 degrees triangle/ label L,J and K. JK is 7 and angle L is 31.6.solve the given right triangle

    asked by bell
  50. math

    Find the volume of the solid enclosed by the paraboloids z = 4*( x^{2} + y^{2} ) and z = 8 - 4*( x^{2} + y^{2} ).

    asked by tony
  51. plato

    A colony of a country that followed mercantilism during the 17th century would NOT be encouraged to develop whay

    asked by sarah
  52. Physics

    What is the volume of 3.25 moles of a gas at a temperature of 115 K and a pressure of 275 kPa?

    asked by Hannah
  53. Chemistry

    If all of the energy from a 60-watt bulb was put into 1 gram of water at room temperature for 2 seconds, how much would the temperature of the water increase?

    asked by Karmelo
  54. Earth's Heat Resources

    list 3 examples of natural activities or events that carry thermal energy from within Earth directly to Earth's surface. I don't get what kinds of activities its referring to.

    asked by Sydney
  55. Earth's Heat Resources

    How is the energy that reaches earth's surface returned to space? is is by radiation?

    asked by Sydney
  56. Earth's Heat Resources

    most of earth's landmass is in the northern hemisphere. how might this influence Earth's overall albedo during a)June b)January I really don't get this question.

    asked by Sydney
  57. HEAT

    A container holds a quantity of liquid nitrogen at a temperature of -200 degrees C. Explain how each of the following could be used to warm up the nitrogen. a)ice cubes b)hot water bath c)bubbling room air through the liquid All these substances contain a

    asked by Sydney
  58. using the geometric-programing method of constrain

    the seasonal operating cost in dollars per square meter of grain bed for such a dryer consists of the cost of heating the air. heating cost=0,002Q(delta T) and blower operating cost Blower cost=2.6^(10^-9)Q^3 where Q= air quantity deliverd through the bed

    asked by Alicia
  59. 7th grade

    a rectangular block measures 2cm * 1.5cm *1cm .the mass of the object is 31.5 grams .what is its density ?

    asked by Anonymous
  60. criminal justice

    what hiring standards are affected for different departments inmerged cell?

    asked by tiara
  61. science

    a shopper walks west 35m west, another 17m west and then 67m east. what is the resultant displacement?

    asked by julie
  62. science

    a shopper walks west 35m west, another 17m west and then 67m east. what is the resultant displacement?

    asked by julie
  63. Math

    a ladder reaches 18 feet up the side of a building with its base 5 feet from the building. Find the slope of the ladder.

    asked by Jeanette
  64. Math

    If S is the subspace of R^3 containing only the zero vector, what is S perp ? If S is spanned by ( 1 , 1, 1), what is S perp? If S is spanned by ( 2, 0, 0) and ( 0, 0, 3), what is S perp?

    asked by Frazer
  65. College Chemistry..Urgent!

    THE EQUILIBRIUM CONSTANT FOR A REACTION IS 2.48 AT 25 DEGREES CELSIUS. WHAT IS THE VALUE OF ΔG°(KJ)AT THIS TEMPERATURE? (R=8.314 J/K mol)

    asked by shanice
  66. statistics

    The lengths of pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. Out of 50 pregnancies, how many would you expect to last less than 250 days?

    asked by Terry
  67. Chemistry

    What is the pH of a solution if two aspirin each containing 500mg of acetylsalicyclic acid were dissolved in 325 ml of water?

    asked by Clarissa
  68. physics

    ladder of mass m and length l leans against a frictionless wall at an angle of 60 degrees. The coefficient of static friction between the ladder and ground is 0.45. A man whose mass is 4 times the ladder climbs up. How far up the ladder can he go before he

    asked by katie
  69. physics

    Battery supplies a potential difference of 6v At a certain temperature the current in the 45ohms resistor is 0.08A How would you calculate the potential difference across the thermistor? thanks :)

    asked by peter
  70. Chemistry

    Co-precipitation is the process by which undesirable materials are "carried down" and trapped on the suface or within the desired precitate. The precipitate is washed with distilled water to remove the co-precipitates which are more soluble that the

    asked by Patrick
  71. Chemistry

    Gravimetric analysis does not always involve a precipitate. Consider the following problem. A mixture of calcium carbonate and calium oxide has a mass of 8.35 grams. When heated strongly, the CaCO3 in the sample decomposes into solid CaO and carbon dioxide

    asked by Josh
  72. IPC

    Suppose all of the apples have a mass of 0.10 kg. If apple (A) is sitting on the ground, what is its potential energy? A) 0.10 J B) 9.8 J C) 0.0 J D) 1.0 J Would it be A?

    asked by Jon
  73. Math

    show that the length of Ax equals the length of A^T x if AA^T=A^T A

    asked by Melvin
  74. Physics

    a jetliner traveling northward is landing with a speed of 80 m/s. Once the jet touches down, it has 800 m of runway in which to reduce its speed to 10 m/s. (a) Compute the average acceleration (magnitude and direction) of the plane during landing (take the

    asked by Geri
  75. English

    I really need someone to have a look at these sentences. Thank you very, very much. 1)Up to the late eighteenth century the Church had been in charge of most (of) the educational facilities existing in England. 2) In the nineteenth century it contributed

    asked by Franco
  76. physics

    31. (II) a shotputter throws the shot with an initial speed of 15.5m/s at a 34.0* angle to the horizontal. Calculate the horizontal distance traveled by the shots if it leaves the athlete’s hand at a height of 2.20m above the ground.

    asked by Anonymous
  77. Math

    A basketball team has a season record of five wins and two losses. If the team continues this kind of performance, how many wins can it expect if it ends the season with six losses?

    asked by Jenea
  78. English

    I forgot to include the following sentences. Thank you. 1)I need to rephrase this: “These schools incorporated the new-found ideals of manliness; of physical, sporting endeavour, of valuing team above self, of learning to play the game and without

    asked by Franco
  79. Chemistry

    Hi,can I have your help? I'm just trying to solve a few Dilution Solution problems. I'm stuck on these two,and I wish you could help. Here's one: A 500 mL bottle of concentrated acetic acid is diluted to make a 5.0% solution. Find the volume of diluted

    asked by Cliff
  80. POETRY, PART 2

    Hopkins's use of "seared," "bleared," and "smeared" is an example of

    asked by Anonymous
  81. Chemistry

    Hydrochloric acid reacts with Magnesium to form Magnesium Chloride and Hydrogen gas. deltaH= -442kJ If 15mL of 1.0M HCl reacts with .3g of Mg, how many L of H2 are produced? How much heat is produced?

    asked by Taylor
  82. Spanish

    16. ¿Pagaste sólo cinco dólares por la sudadera? a. !Qué caro! b. !Qué verde! c. !Qué ganga! d. !Qué grande! C 17. Prefiero esta blusa y ______ camisas. a. esa b. esas c. esto d. esta A? 18. "____, ¿cuánto cuestan estos tenis?" "Treinta pesos." a.

    asked by mysterychicken
  83. calculus

    Find the area of the region under the graph of the function f on the interval [-1, 2]. f(x) = 6x + 1

    asked by Anonymous
  84. MATH

    CAN SOMEONE HELP ME FIND THE GCF OF THIS POLYNOMIAL? 6x^4+18x^2=

    asked by MARIE
  85. Math

    If one apple and two pears cost $1.55 and two apples and two pears cost $2.30, how much does one apple cost?

    asked by Prince
  86. physics

    A ship approaches saturn at 10.4km/s and saturns speed is 9.6km/s (relative to the sun). Take the interaction as elastic collision. Saturns mass is greater than the space ship. Find the speed of the ship after it goes around Saturn.

    asked by katie
  87. health

    Which is a condition of the male sex gland surrounding the urethra just under the urinary bladder? A. Cryptorchidism B. Hypogonadism C. benign prostatic hyperplasia D. Bulbourethristis I think it is B but not 100% sure or it may be D Help please need

    asked by bett
  88. chemestry

    given 43 moles of KCl how much HNO3 is needed to complet the reaction

    asked by juan
  89. integration

    Find the area of the region under the graph of the function f on the interval [-1, 2]. f(x) = 6x + 1 bound by the x axis

    asked by peter
  90. algebra

    A. 3x + y = 8 x-y =6 B. x- 1/2y =2 y=2x-4 C. x + 2y = 9 2y = -x + 13 I am not grasping the substitution method! Please help me.

    asked by Julie Jam
  91. physics

    why is the current the same in the resistor and the thermistor in a series circuit? thanks :)

    asked by peter
  92. Math

    The price of admission for a concert was $9 for adults and $4 for children. Altogether, 1770 tickets were sold, and the resulting revenue was $14,680. How many adults and how many children attended the concert?

    asked by Julie Jam
  93. physics

    why does the voltage across the thermistor and resistor add up to the voltage of the battery? thanks :)

    asked by peter
  94. Chemistry

    My teacher uses the online homework ARIS and the question is write the balanced equation of Mn3(PO4)2: i have enter the answer Mn3(PO4)2 (s) =3Mn^2+(aq) + 2(PO4)^3-(aq)

    asked by Taylor
  95. geometyr

    determine the perimeter of triangle KLM, if triangle KLM-triangle FGH, FG=30, GH=38, FH=38 and KL=24

    asked by stephanie
  96. algebra

    College Algebra Directions: Solve graphically: x^(2/3)+x^(1/3)-2=0 I just don't know how to approach this?!

    asked by Courtney
  97. Chemistry

    Solid Nal is slowly added to a solution that is .0040 M in Cu^+. Calculate the [I-] when CuI just begins to precipitate from the solution.

    asked by Taylor
  98. CHemistry

    What is the [OH-] of a saturated solution of Zn(OH)2? Ksp=1.8 x 10^-14. i'm just confused on how to start this problem i don't want the answer just the steps how to get there please

    asked by Taylor
  99. geomety

    solve for x 5 + x 10 ----- = ---- x 8

    asked by stephanie
  100. social studies

    what is a veteran?

    asked by jess
  101. Chem

    Please tell me if these are right! What are the [H3O+] and [OH-] for a solution with the following pH values? a. 10.0 I got 1.0*10^-10 for [H3O+] and 1.0*10^-4 for [OH-] b. 5.0 I got 1.0*10^-5 for [H3O+] and 1.0*10^-9 for [OH-] c. 7.00 I got 1.0*10^-7 for

    asked by Jessica
  102. Chemistry

    Identify an inert element that is used in electrical discharge tubes.

    asked by Paige
  103. social studies

    show me a pie chart with the population and land ownership of france in 1789

    asked by courtney
  104. English

    Rewrite the following fragments to make a complete sentence. 1. Have you seen the new movie about the Titanic? 2. If the powder turns red 3. before the sun rises

    asked by pinki
  105. Physics

    Ball, with a weight of 200 grams, tied to a string rotates around in a horizontal plane. Period of rotation is 2 seconds. What is the force (in N) which acts on the string? The length of the string is 0.5 meters.

    asked by Steven
  106. English

    Discuss your understanding of the term ‘Tense’ used in grammar

    asked by pinki
  107. College Algebra

    Directions: Find the REAL solutions of the equation x^3-2.6x^2=3.93 Please help, its for my final!

    asked by Courtney
  108. Physics

    If given the ratio of temperatures in Celsius to Kelvin for Gold to silver as 1.10614 to 1.08265. How can I find the temperatures of each individual element form just this information?

    asked by Lin
  109. spanish help

    I need help translating this sentence into spanish I also experience a shortness of breath when I am taking long walks or walking up the steps.

    asked by Anonymous
  110. 9th grade

    a object has a mass of 30 grams and a volume of10 cm^3. what is the density of the material?

    asked by ceeceee
  111. math

    toy rubber balls are packaged in a circular cylinder that holds 3 balds. the diameter of each ball is 3.7 cm find the volume of the circular cylender use 3.14 to represent

    asked by Frida
  112. physical science

    how would you classify a solution that contains 1.5g of lithium carbonate in 100g of water at 20 degrees

    asked by kala
  113. English

    Use semicolons or commas to revise each comma splice or fused sentence into a correct compound sentence.? 1. The group released a new CD today; however it will not be available for a month. The group released a new CD today; however it will not be

    asked by pinki
  114. English

    Express views on the given topic in paragraph form. It should comprise of 100-130 words.? "Giving is better than receiving." Comment.

    asked by pinki
  115. bio

    Artificial sweeteners, colorants, oils, and medications are manufactured after they are accepted by the U.S. FDA. In order to have such acceptance for public use, companies have to complete exhaustive testing to demonstrate the safety of their products.

    asked by Anonymous
  116. 7th grade

    2(2.5b-9) + 6b= -7 what is b

    asked by Daniel
  117. Chemistry

    A 22.5 gram sample of ammonium carbonate contains ? mol of ammonium ions?

    asked by Gina
  118. College Physics II

    What is the longest wavelength light capable of ionizing a hydrogen atom in the n = 4 state? i know that Solve h c/L = (Rydberg)/6^2 for L something along those lines... but what am i solving for and what is c and h?

    asked by VJC
  119. College Algebra

    Solve for C 2a=(5b-c)/(3c+1)

    asked by Courtney
  120. Chem

    What is the empirical formula of a compound that contains 27.0%S, 13.4%O,and 59.6%Cl by mass?

    asked by Kay
  121. chemisty

    how many grams of Na are needed to react with H2O to liberate 400mL of H2 gas at STP?

    asked by justin
  122. chemistry

    Write the 12 mole ratios that can be derived from the equation for the combustion of isopropyl alcohol?

    asked by stephanie
  123. Math

    At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also failed check B? b. If a product

    asked by Rena
  124. Chemistry

    Which compound would be ionic? H2O, CO2, SrCl2,SO2, H2S

    asked by Tony
  125. English

    Can you help me check these sentences, too? Thank you very much. 1) Though many people don’t care what they wear, most people don’t like wearing old-fashioned (unfashionable) clothes. 2) In other words, they follow the latest fashion and are easily

    asked by Franco
  126. Keyboarding and word processing

    You're Creating A Table With Borders All Around The Cells Showing. Another Word For This Type Of Table Is A. Open. C. Boxed. B. Closed. D. Celled?

    asked by Nana
  127. physics...

    A satellite moves in a circular orbit around the Earth at a speed of 5661 m/s. (a) Determine the satellite's altitude above the surface of the Earth. i'm using the equation Gm/(r+h)=9.8 where h=altitude and i keep coming up with the wrong answer.

    asked by kaitlyn
  128. Bio

    As a scientist, you are assigned the task of finding out if the disappearance of a particular fish species from a lake in the Northwestern United States is due to acid rain resulting from industrial air pollution. Identify alternative hypotheses that could

    asked by luly
  129. physics

    The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.20. What force is required to push it down a 6.0° incline and achieve a speed of 70 km/h at the end of 75 m?

    asked by jen
  130. chemical

    how i can streched the stoichemtric chart for air at 20.40.60.80 c(Temperature)

    asked by adelnawaseh
  131. physics

    meerany A flat (unbanked) curve on a highway has a radius of 220.0 Ill. A car rounds the curve at a speed of 25.0 m/s. (a) What is the minimum coefficient of friction that will prevent sliding? (b) Suppose the highway is icy and the coefficient of friction

    asked by aleen
  132. physics

    The magnitude of the scalar product of vectors A and B is three times as large as the magnitude of the vector product of the same two vectors. If they were placed tail-to-tail in space, A and B would form an angle of approximately how much?

    asked by Edith
  133. English

    o Identify which paragraph was more effective and analyze why this is so. o Include a discussion of sentence variety and the rhythm of the author’s writing. o Focus on the writing rather than the opinions presented. o Underline your topic sentence. Did I

    asked by Jen
  134. Spanish

    22. ¿Te gustan _______ pantalones ___? a. estos/marrones b. rojos/esos c. negros/estos d. el/grises A? 26. Llueve y hace frío hoy. _________ a. Menos mal que tengo una maleta b. Regreso a las tres c. No puedo tomar el sol d. ¿Dónde están mis anteojos

    asked by mysterychicken
  135. Art History

    7. Compare the naturalism of Chinese art of the 10th to 12th centuries with the Western Romanesque art of the same time period. Use the Guanyin Bodhisattva, the handscroll, Ladies Preparing Newly Woven Silk, and the landscape paintings for specific

    asked by Sherry
  136. math

    y= -x+1 using the numbers -2,-1,0,1,2 as x

    asked by love
  137. Chemistry

    using the gas laws, What is V in the table below? initial: 1420 torr 75 mL 200 K Final: 760 torr V 360 K What is T using the gas laws? Initial: 91.8 mL 365 K Final: 45.8 mL T

    asked by Becca
  138. Chemistry

    Calculate the energy of a photon of light with a wavelength of 360 nm?

    asked by Becca
  139. math

    a wagon train had ninety-six wagons each carrying the same number of people. when twelve broke down, each of the other wagons had to carry one more person. How many people were in each wagon originally.

    asked by Jay
  140. Chemistry

    A sample of unknown ore was analyzed and fgound to contain 12.7% Al, 19.7% N,and 67.6% O. What is the empirical formula of this ore?

    asked by Becca
  141. science project

    I need help writing my abstract for my science project and it's the only thing I have left to do. It's very fustrating, so is there anyone who can help me plz?!!!!!!!

    asked by yvonne
  142. Chemistry

    What is the theoretical yield of PI3 from the reaction of 27.0 g of P and 68.0 g I2? 2P(s)+3I2(s) 2PI3(s)

    asked by Becca
  143. math

    The volume of a ball is 288 pi cm^3. Find the dimensions of a rectangular box that is just large enough to hold the ball.

    asked by ray
  144. college

    A process for producing electronic circuits has achieved very high yield levels. An average of only 10 defective parts per million is currently produced. 1. What are the upper and lower control limits for a sample size of 100? 2. Recompute the upper and

    asked by jackie
  145. Cal

    Find the slope of the tangent line to the curve at (2,1) x/y + x^2y^2 = 6

    asked by jordan
  146. Math

    The mass of the solid inside the sphere: x^2+y^2+z^2=1, above the xy plane and below the cone z=SqRT(x^2 + y^2. It's mass density is equal to the square of a distance from the origin, setup in both spherical and cylindrical coordinates. I don't have to

    asked by Justin
  147. health

    What is the role of administrative agencies in the current health care environment?

    asked by jeanna
  148. Physics

    As you know, a cube with each side 4 m in length has a volume of 64 m3. Each side of the cube is now doubled in length. What is the ratio of the new volume to the old volume? Why is this ratio not simply 2? Include a sketch with dimensions.

    asked by Coty
  149. math

    A diameter of a circle is perpendicular to a chord whose length is 12 inches. If the length of the shorter segment of the diameter is 4 inches, what is the length of the longer segment of the diameter?

    asked by Lisa
  150. math

    Two secant segments are drawn to a circle from a point outside the circle. The external segment of the first secant segment is 8 centimeters and its internal segment is 6 centimeters. If the entire length of the second secant segment is 28 scentimeters,

    asked by Don
  151. math

    What is the mode of these numbers-19,20,32,26.Show me how you got your answer.

    asked by Michelle
  152. Chemistry

    Calculate the pH of an aqueous solution at 25 degress C that is .41 M in phenol (C6H5OH). Ka for phenol=1.3 x 10^-10.

    asked by Natalie
  153. Chemistry

    What is the original molarity of a solution of a weak acid whose Ka=3.5 x 10^-5 and whose pH is 5.28 at 25 degrees C?

    asked by Natalie
  154. 5th grade

    What is the mode of these # 19,20,32,26

    asked by Michelle
  155. Chemistry

    An aqueous solution of an unknown, monobasic weak base has an initial molarity of .176 M and a final[OH-] of .0000158 M. What is the Kb of the unknown base?

    asked by Natalie
  156. chemistry

    What is the original molarity of an aqueous solution of ammonia (NH3) whose pH is 11.10 at 25 degrees C? (Kb for NH3=1.8 x 10^-5)

    asked by Natalie
  157. CHemistry

    Calculate the pH of a .25 M ammonium acetate (CH3COONH4) soluton. I thought u just did -log(.25) but it keeps saying that i have the wrong answer.

    asked by Natalie
  158. H NMR

    C4 H10 O2 ppm = 3.25 singlet 6H ppm = 3.45 singlet 4H

    asked by josh
  159. spanish

    ___(1)___ (ser) una noche suave de primavera. Tumbados en el césped (lying on the grass) María y Jose ___(2)___ (observar, observed) al cielo (sky) A veces, un viento suave ___(3)___ (turbar, moved) las blancas cortinas (curtains) y María y Jose

    asked by whitney
  160. Chemistry

    CaO(s) + 3C(s) > CaC2(s) + CO(g) deltaHrxn = +464.8 kJ/mol-rxn Is the reaction endothermic or exothermic? What is the enthalpy change if 10.0 g of CaO is allowed to react with an excess of carbon?

    asked by Jake
  161. chemistry

    To what volume should you dilute 131 mL of an 8.20 M CuCl2 solution so that 49.0 mL of the diluted solution contains 4.53g CuCl2 ? Chemistry...Help!! - Dr Russ, Wednesday, December 8, 2010 at 4:43am Molar mass of CuCl2 is 134.5 g mol^-1 so solution needs

    asked by Lisa, Help needed!
  162. algebra

    reduce the fraction 6x/12x to lowest terms.

    asked by K
  163. Math

    An Antique dealer visited three shops. she spend $25 at the first shop. At the second shop, she spent half of her remaining money. At the third shop, she spent one third of her remaining money and had $60 left. How much money did the dealer have orginally?

    asked by Anonymous
  164. GenChemistry

    Exposure to high doses of microwaves can cause tissue damage. Estimate how many photons with a wavelength = 12cm, must be absorbed to raise the temperature of your eye by 3.0 deg C. Assume the mass of the eye is 11g and its specific heat is 4.0 J/gK

    asked by Jake
  165. Geometry

    An Antique dealer visited three shops. she spend $25 at the first shop. At the second shop, she spent half of her remaining money. At the third shop, she spent one third of her remaining money and had $60 left. How much money did the dealer have orginally?

    asked by Anonymous
  166. ALgebra word problem

    one number is 6 more than another. their product is 91. what is the number?

    asked by mike
  167. Physics

    A violin has an open string length (bridge to nut) of L=32.7 cm. At what distance x from the bridge does a violinist have to place his finger on the fingerboard to play a C (523.3 Hz) on the A string (fundamental frequency 440 Hz)?

    asked by Nadya
  168. Physics

    Initially, you hear the siren at 90 dB. When the distance between you and the ambulance is a quarter of what it was initially, at what intensity level do you hear the siren? Assume that the siren is emitting sound equally in all directions.

    asked by Nadya
  169. math

    mr smith wants to increase the size of his circles radius by 2 feet write a formula that can be used to find the circumference of the large circle

    asked by elias
  170. preschool

    hello i need help with a lesson plan i need to find one regarding diversity, and whats the concept?

    asked by nataly
  171. pre-algebra

    k im not sure how im supposed to do this 3(x+2)= 5-2(x-3) i need to know x

    asked by amanda
  172. chem 21

    whatvolume will 1.00g h2O occupy if it is converted to steam at 100degree Cand 1.00 atm

    asked by franko
  173. geometry

    What equation will express the relationship between the number of side, s, and the number of lines of symmetry, l, in a regular polygon

    asked by LJJ
  174. algebra

    reduce the fraction 6x/12x to lowest terms

    asked by K
  175. geometry

    do the lenghts 11, 15, and 40 make a triangle?

    asked by alexis
  176. social studies

    What is the significance of immediate news media delivery on culture?

    asked by Anonymous
  177. MATH

    solve (x-3)(x+3)

    asked by Veronica
  178. calculus

    let K=1/(1/4) if x=K/(K-x), find x

    asked by Anonymous
  179. algebra

    What is the check of 40/5=8

    asked by Jalen
  180. chemisty

    when looking at a chemical equation what are the evidences that a chemical reaction has occured. Or what is the evidence that it has not occured thanks:):)

    asked by hannah
  181. Trig

    How do I do this? I punch the numbers into my calculator, and they don't work. B=sin^-1 (12/7 sin42\[Degree])

    asked by Jane
  182. Chemistry

    Calculate the weight percent of water in NiSO4 6H2O, how to calculate it?

    asked by Brittany
  183. Chemistry

    Calculate the weight percent of water in NiSO4 6H2O, how to calculate it?

    asked by Brittany
  184. arithmetic

    justins father says that he will not plant less than a square meter of any vegetable.design a garden with the largest possible amount of land planted in potatoes that fits the condition of the problem and hat least one square meter allotted for each

    asked by Anonymous
  185. 6th grade

    justins father says that he will not plant less than a square meter of any vegetable.design a garden with the largest possible amount of land planted in potatoes that fits the condition of the problem and hat least one square meter allotted for each

    asked by Anonymous
  186. physics

    While throwing a football, you exert a forward force of 50.0N on it and push it forward a distance of 1.2m. How much work do you do on the football?

    asked by Theresa
  187. alg 2

    3x^2-243=

    asked by katelyn
  188. englsh

    need help in comparing Mercutio in romeo and juliet with riff in westside story

    asked by Zack
  189. algebra

    The sides of a square sheet of metal are of length 30 cm. A quadrant radius 15 cm is cut from each of the four corners. What is the perimeter of the shape which is left?

    asked by Nicola
  190. cemistry

    what information is provided by the atomic mass?

    asked by bre
  191. algebra 1

    can some one please help me with this equation using the addition principle -9/5 + x = -2/9 Please explain how you got your answer in all phases. Thanks

    asked by robbie
  192. History

    what are some good examples of Debate & Diplomacy: Successes, Failures, Consequences. in the past?

    asked by sabina
  193. english

    Im in third grade and i don't understand colons.i have to proofread a paragraph and combine them using colons.

    asked by cal
  194. decimals

    what is the value of the 1 in 93.01?

    asked by fran
  195. Physics

    An electron in a cathode-ray tube is traveling horizontally at 2.10 x 109 cm/s when deflection plates give it an upward acceleration of 6.39 x 1017 cm/s2 How long does it take for the electron to travel 6.20 m? What is the vertical displacement? I got the

    asked by Avalon
  196. Algebra

    3x-2y=-5 and 4x+3y=-18 i need to graph and find the intersection

    asked by Mckenna
  197. Com 155

    I following is a paragraph regarding my experience with credit cards. I had to use least five adverbs and five adjectives in my paragraph. I have to bold the adverbs and underline the adjectives, the only problem is I am having a hard time figuring out

    asked by Leigh
  198. English

    1. Don't touch the food with your hand. I think it's so _______. (Wound you name some suitable expressions for the blank?) 2. How many hours do you surf the Internet? 3. How many hours do you surf on the Internet? (Which one is correct, #2 or #3?)

    asked by rfvv
  199. chem- plz check my work

    2. Given the following equation, C2H5OH(l) + 3 O2(g)---> 2 CO2(g) + 3 H2O(l) How many liter of CO2 are expected in the combustion of 12.0 grams of ethanol? My work: 12.0g C2H5OH X 1 mol C2H5OH/46.08g C2H5OH X 2 mol CO2/1 molC2H5OH X 22.4L CO2/1 mol CO2 =

    asked by hannah
  200. 7th grade

    WHATS 111,111 IN PRIME FACTORED FORM AND IN TREE FORM?

    asked by Aileen Jiminian
  201. chemistry

    Determine the number of bromide ions in solution when 4.23 g of magnesium bromide and 1.21 g of potassium bromide are dissolved in 120mL of water. Please explain not sure how to even start this problem, thanks!

    asked by Stacy
  202. Please help childcare

    i need to find 5 books that support development of gender identity by portraying males and females in diverse roles. but it has to be from 2005 till 2010 I found 1 but i cant seem to find more?

    asked by sasha
  203. English

    1. Seeing the policeman, he ran away. 2. When he saw the policeman, he ran away. 3. As soon as he saw the policeman, he ran away. (Which one is similar to #1, #2 or #3?)

    asked by rfvv
  204. math

    sin^-1 (12/7 sin42\[Degree]) b = sin -1 (12/7 sin 42 degrees) How do I do this?

    asked by Jane
  205. Chemistry

    You react ammonia and oxygen, and at the end of the experiment you find that you produced 20.7 g of water and have 8.52 g of ammonia left over. Determine the mass of oxygen reacted.

    asked by Adog
  206. physics

    A plane designed for vertical takeoff has a mass of 51 kg. Find the net work Wnet as it accelerates upward at 1 m/s2 through a distance of 34 m after starting from rest.

    asked by anna
  207. Chemistry

    You react 25.0 g hydrogen gas with 30.2 g oxygen gas. Determine the mass of water that can be produced from these reactants.

    asked by Adog
  208. chemistry

    magnesium has 3 isotopes. Magnesium-24 has a percent abundance of 78.99%. Magnesium-26 has a percent of 11.01%. what is the percent abundance of magnesium-25? assume that there are no other magnesium isotopes. how do i do this please help

    asked by monique n
  209. Algebra

    express log (3x^5y^3/z^3) as the sum and difference of logs with no exponents.

    asked by peggy
  210. 5th grade

    if a line is measured as 1 and 4/8 inches long explain how you could simplify the measurement

    asked by michelle
  211. english

    Hi need help with need thesis. My thesis before was "Justice is not being severed in the case of the Somali pirates. Truth is being hindered from others about the Somali pirates and how the Somali pirates emerged in the beginning. How can I come up with

    asked by Mariae
  212. chemistry

    Calculate the atomic mass of iridium. Iridium has two isotopes. Iridium-191 has a mass of 191.0 amu and a percent abundance of 37.58%. Iridium-191 has a mass of 193.0 amu and a percent abundance of 62.42%. how do i do this

    asked by monique n
  213. Chemistry

    Calculate the weight percent of water in NiSO4 6H2O, how to calculate it?

    asked by Brittany
  214. college

    Communication channels - physical presence, written-printed, electronic/computer what are the advantages and disadvantages of each?

    asked by Gwen
  215. trig

    solving radical equations... help! 5+¡în+1= n+4

    asked by bob
  216. Chemistry

    How many moles of carbon monoxide gas are produced when 2.88 moles of SnO2(s) react with excess carbon according to the equation below? SnO2(s) + 2C(s) --> Sn(s) + 2CO(g) How do you figure all of this out?

    asked by Lauren K.
  217. chemistry

    Iodine-131 is used to destroy thyroid tissue in the treatment of an overactive thyroid. the half-life of iodine-131 is 8.02 days. if a hospital receives a shipment of 200.0g of iodine-131, how much iodine-131 would remain after 32 days?

    asked by monique n
  218. algebra 1

    Solve the equation 7z+30=-5

    asked by Joe
  219. chemistry

    Mercury-197 is used for kidney scans and has a half-life of 3 days. if the amount of mercury-197 needed for a study is 1.0 grams and the time allowed for shipment is 15 days, how much mercury-197 will need to be ordered.

    asked by monique n
  220. social stuudies

    why did the colonists draft the olive branch petetion?

    asked by blahhh
  221. chemistry

    How much heat energy in KJ is evolved by a reaction in a calorimeter in which the temperature of the calorimeter and water increases from 20.91 degrees C to 26.45 degrees C? The bomb has a heat capacity of 469 J/degrees . The Calorimeter contaains 792

    asked by Brittany
  222. Help

    How are oxygen and ozones alike? How are xyggen and ozone different?

    asked by Please help
  223. comm 155 continued

    I following is a paragraph regarding my experience with credit cards. I now need to bold the nouns and pronouns and underline the verbs. I do not know why, but I am having a hard time with this. Any help please. When I was 18, I received my first credit

    asked by Leigh
  224. algebra

    A flagpole at a right angle to the horizontal is located on a slope that makes an angle of 12 degrees with the horizontal. The pole's shadow is 16 meters long and points directly up to the slope. The angle of elevation of the sun is 20 degrees. Draw the

    asked by marlie
  225. science

    What are the cell walls of fungi made of?

    asked by Katherine
  226. physics

    the separation of the foci of an ellipse that describes a planet's orbit derermines A eccentricity of the orbit B period of the orbit C size of the orbit D all of the above. I think it is A because the closer the foci, the more circular versus elliptical

    asked by anonymous
  227. Physics

    When railroad tracks are installed, gaps are left between the rails. Each steel rail is 8.0m long and has a cross-sectional area of 0.0020m^2. On a hot day, each rail thermally expands as much as 4.0mm. If there were no gaps between the rails, what would

    asked by Wendi
  228. Science 6th

    how can you tell if an ear of purple corn was bred for it's purplr trait?

    asked by Patti
  229. calculus

    The moment of inertia about the pole(origin) of the plane region which is inside the cardiod: r = 1 + cosO and outside the circle r =1. It's mass density is equal to it's distance from the pole..... I need someone who is way smarter than me to help with

    asked by Justin
  230. geometry

    arc AB is 55 degrees. the radius of the circle is 4 inches. what is the length of arc AB?

    asked by Anonymous
  231. math

    A plane traveling at 600 mph leaves 3/4 hr earlier than a plane traveling at 800 mph. when will the second plane surpass the first?

    asked by regina
  232. statistics

    Given the following data: 18,12,18,20,16,20,18,36,16,18, 14,20,24,20,5,18,10,15,24. Determine the mean, median and mode of this data

    asked by toya
  233. math

    Look for a pattern in the table. Then write an equation that represents the table. x 0 1 2 3 y 1.5 4 6.5 9

    asked by Amanda
  234. 10th grade Chemistry

    What is the hydroxide ion concentration in a solution with [H3O+] = 7.67*10^-9 M?

    asked by gab
  235. algebra

    what is a distibutive property equation equaling 36

    asked by Anonymous
  236. Math Correction

    Explain how you can tell(without graphing) that the function has no x intercept and no asymptotes. What is the end behaviour? r(x)= x^6+10 / x^4+8x^2+15 How would I solve this? I know it has something to do with factoring but im not sure what else to do.

    asked by Amanda
  237. math

    The bands sell all but 500 tickets for an 800 p.m concert at Badger Arena. At 730 p.m ,18,777 people have arrived. How many people are not at the arena yet?

    asked by arjel
  238. business law

    Dale Emerson served as the chief financial officer for Reliant Electric Company, a distributor of electricity serving portions of Montana and North Dakota. Reliant was in the final stages of planning a takeover of Dakota Gasworks, Inc. a natural gas

    asked by james
  239. 4th grade

    what is one way in which the state government and the federal government are different from each other?

    asked by Darien
  240. math

    monthly payments on a $100000 loan at 5.5% annual interest amortized over 100 years will be close to?

    asked by evan chen
  241. 4th grade

    The federal government affects the whole _______ _________ and the state government affects only the __________.

    asked by Darien
  242. 11th grade

    how can i write a acrostic poem on beowulf?

    asked by Anonymous
  243. science

    How much work does it take to hold a 150 N weight above your head for 3 seconds?

    asked by Niners
  244. Physics

    What is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.008 m-tall person standing vertically?

    asked by c
  245. math

    The volume of a ball is 288 pi cm^3. Find the dimensions of a rectangular box that is just large enough to hold the ball. Use 3.14 for pie

    asked by ray
  246. college

    Dale Emerson served as the chief financial officer for Reliant Electric Company, a distributor of electricity serving portions of Montana and North Dakota. Reliant was in the final stages of planning a takeover of Dakota Gasworks, Inc. a natural gas

    asked by james
  247. algebra

    whta is the rule? m 2 4 6 8 n 18 16 14 12

    asked by samantha
  248. English

    I still have a few doubts. I hope you can have a look at them, too. Thank you. 1) The population of New York is 8,391,881 (people?). 2) How big/large is the population of New York? 3)The event takes place twice a year, once for spring-summer and once for

    asked by Franco
  249. AP Physics B

    An object of mass 3.2 kg is allowed to fall from rest under the force of gravity for 3.5 s. What is the change in its momentum? Ignore air resistance.

    asked by Jamie
  250. 5th grade

    I need help! I am supposed to complete the table and write an equation to show the relationship. The table has input of x, 0,1,2,3,4,5 and output of y,4,10,16,22,and the last two outputs are blank. I think they are 28 and 34--but what is the relationship?

    asked by brook
  251. Poem Contset!!

    There is a poem "contest" at my school and If I write a poem that's good it may go in a book! The only problem is I can't really write a GOOD poem. Can anyone post a site that may help Me? THanks, ErIn

    asked by Erin
  252. Algebra

    Describe two laws of exponents and provide an example illustrating each law. Explain how to simplify your expression. How do the laws work with rational exponents?

    asked by Sam
  253. Math/Statistic

    If I'm doing a pearson's and need to know the percentage of predicitability... all I have to do is work out the pearon's, right?

    asked by Laur
  254. high school physics

    Annie rides her snowboard down a hill sloped at 25 degrees. The coefficient of kinetic friction between her and her skies is .15. If her mass is 55 kg, hw fast is she excelerating? Assuming she starts from rest and the equation is v=v+a*t, what is her

    asked by Jess
  255. Math- help finishing

    A right triangle has an area of 84 ftand a hypotenuse 25 ft long. What are the lengths of its two sides? Ive gotten this far: 25^2= a^2+b^2 a=25-b 84= ab/2 168= 25b-b^2 b^2-25b+168=0 I then use the quad. formlua to solve for b... but I get an error. Can

    asked by Lindsay
  256. Calculus

    Find the horizontal asymptote of f(x)=e^x - x lim x->infinity (e^x)-x= infinity when it's going towards infinity, shouldn't it equal to negative infinity, since 0-infinity = - infinity lim x-> -infinity (e^x)-x= infinity

    asked by sh
  257. science

    why is it important to know your family medical history

    asked by tina
  258. Precalculus

    2sin^2x+3cosx=3

    asked by Megan
  259. 6th grade

    how do you do rate of change?

    asked by alexandra
  260. science

    the separation of the foci of an ellipse that describes a planet's orbit derermines A eccentricity of the orbit B period of the orbit C size of the orbit D all of the above. I think it is A because the closer the foci, the more circular versus elliptical

    asked by chelsie
  261. Teachers aide

    5 pamplets or copies that help parents understand how children grow and learn.

    asked by ana
  262. Chemistry

    The specific heat capacity of Lead is 0.127J/degrees C*g. What is the molar heat capacity of Lead? What is the heat capacity of a lead cylinder that has a mass of 235000g?

    asked by Brittany
  263. physics

    Bob is riding his bike along at 2m/s and drops his 2kg backpack from a height of 1.5 meters. What is the backpacks resulting velocity when it strikes the ground?

    asked by lesly
  264. Teachers aide

    music or words for four children's songs 2 must be from other cultures.must write song title, the name of the person who wrote it, the publisher's name and city and the copyright date. title: words by: music by: publisher,city,country: copyright date:

    asked by ana
  265. Precalculus

    2sin^2x+3cosx=3 find all solutions in the interval [0,2pi]

    asked by Megan
  266. 5th grade math

    A set of books fills a shelf that is 24in long each book is 3/4 inch thick. How many books are in the classroom shelf? Would it be 18 ???

    asked by jill
  267. math

    A circular piece of sheet metal has a diameter of 20 in. The edges are to be cut off to form a rectangle of area 160in^2. What are the dimensions of the rectangle?

    asked by Sabel
  268. math

    in a class of 50 students, 29 are democrats, 11 are business majors, and 5 of the business majors are democrats. If one student is randomly selected, find the probability of A. choosing a democrat who is not a business major B. choosing a student who's

    asked by Anonymous
  269. geometry

    100.0 g of copper(II) carbonate (molar mass = 123.56 g/mol) was heated until it decomposed completely. The gas was collected and cooled to room temperature and normal pressure (25¨¬C and 1.00 atm). What volume of carbon dioxide was produced? The reaction

    asked by sassy
  270. interval in math

    what is the interval for the following set of numbers 3,4,6,7,8,3,2,1

    asked by Tim S
  271. com155

    use five adverbs and five adjectives to write about a movie. Compare an event to similar events using three comparatives and three superlatives.

    asked by kelly
  272. uop

    Choose some numbers and work in a small group to figure out how to apply the tests for divisibility by 4, 6, 7, 8, 9, and 11 given on pp. 211–214. a. Use a calculator to select some numbers that are and some that aren’t divisible by these numbers. Give

    asked by bb
  273. Economics

    Explain how the reluctance of oil and gas producers to drill for shallow gas was consistent with the law of supply?

    asked by michael
  274. Math

    Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also

    asked by Rena
  275. Science

    Describe the tools and materials that are provided by soil to play football

    asked by Airon
  276. Logarithm law question

    Hello, i was wondering if e^(2t) is equivalent to e^(t^2). I cant seem to find if this is true or not. Thanks

    asked by Moi
  277. Chemistry. please help

    A 0.12 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.10 M) was used to titrate the sample, and 18 mL was required to reach the endpoint. What is the formula weight of the unknown?

    asked by Stephanie
  278. Chemistry

    Given 175 liters of SO3 at 800 torr and 100 degrees C, find the volume at STP, give the mass of the sample and give the number of molecules in the sample. Can somebody please explain how I figure this out? I'm so lost. :{

    asked by Annabella
  279. 11th grade

    I NEED URGENT HELP!! Bob is riding his bike along at 2m/s and drops his 2kg backpack from a height of 1.5 meters. What is the backpacks resulting velocity when it strikes the ground?

    asked by lesly
  280. math

    saving bond currently worth $7600 collects 5.5% annual simple interest each year. if the bond was purchased seven yeara ago, how much was it bought for?

    asked by evan chen
  281. Spanish

    36. Prefiero el té helado ______. a. la semana pasada b. cuando hace calor c. cuando hace frío d. cuando saco fotos B? 37. Estoy enfermo; no ______ ir de vacaciones. a. salgo b. voy c. pienso d. estoy Not sure :/ 38. ¿Qué ______ hacer tú y yo para su

    asked by mysterychicken
  282. physics

    Joshua throws a stone horizontally from a cliff at a speed of 20m/s, which strikes the ground 2.0 seconds later a. use your knowledge of vectors and show that the stone strikes the ground at a speed of about 28m/s. b. At what angles does the ball strike

    asked by sabina
  283. Calculus

    If f(x)= sqrt(4sin(x)+2), then f'(0)=

    asked by Anna
  284. science

    How much force will a tennis racket need to exert on a tennis ball, with a mass of .67 kg, to make it accelerateat a rate of 5,600m/s^2?

    asked by susan
  285. physics

    A tank of water 3 meters deep sits on a table 1 meter tall. A hole is located 2 meters from the bottom of the tank. Water flows out of the hole and strikes the ground. Where does it strike the ground? Assume incompressible, non viscous flow.

    asked by olu
  286. algebra

    -56+y>113 solve the inequality

    asked by joe
  287. math

    1/2 + 2/5 in simplest form?

    asked by matthew
  288. College Algebra

    Carbon-14 Dating. Only 10% of the carbon-14 in a samll wooden bowl remains. How old is the bowl? Half life of carbon is 5700 years.

    asked by Vince
  289. science physics

    A giant crane in Washington DC was tested by lifting a 2.232x10^6 kg load. Find the magnitude of the force needed to lift the load with a net acceleration of 0m/s^2

    asked by Melina
  290. English

    1.Everyone in the club (has, have) read this book. 2.Most of the field (needs, need) mowing. Tell if the indefinite pronoun is singular or plural. Then choose correct word in () 1.singular=has 2.singular=needs

    asked by Chris
  291. Chemistry

    How would I go about doing this problem? 146 mL of wet H2 gas is collected over water at 29.0 degrees C and room pressure of 750 torr. Give the volume of the dry H2 gas collected at STP, give the mass of the dry H2 collected, and give the volume of the dry

    asked by Marie
  292. high school physics static friction

    The system shown below is in equilibrium. Using the fact that block A is placed on a table, has a normal force of 40.2 N and it is not moving, what is the coefficient of static friction on block A? I know you can't answer this but if you have any

    asked by Jess
  293. physics

    In a time of 10s, a 70 kg student runs up 2 flights of stairs whose combined vertical height is 8.0m. compute the student's power output in doing work against gravity in (a)watts and (b)horsepower

    asked by Wendi
  294. math

    b/4 >-5 solve inequality

    asked by joe
  295. Scince

    How do you think you could increase the purity of the nitrogen gas?

    asked by AJ
  296. chemistry

    Determine the number of bromide ions in solution when 4.23 g of magnesium bromide and 1.21 g of potassium bromide are dissolved in 120mL of water. Please explain not sure how to even start this problem, thanks! chemistry - DrBob222, Wednesday, December 8,

    asked by Stacy
  297. chemistry - chromatography

    Hello, can you tell me why different colors have different rf values

    asked by dan
  298. college

    use the five steps for problem solving. the average of two test scores is 79. if one test score is eleven less than the other, what are the two test scores?

    asked by kristie
  299. chemistry

    how much energy would it take to completely melt 200kg of lead if the lead is currently at 25 degrees celcius

    asked by Trey
  300. Calculus I

    A square-bottomed box with no top has a fixed volume, V. What dimensions minimize the surface area?

    asked by Nisa
  301. Calculus

    To construct a tincan, V=32pi m^3, The cost per square meter of the side is half of the top and bottom of can. What are the dimensions and the cost? V=πr²h=32pi SA=2πr²+2πrh h=32/r² Domain={r>o} Let x be the cost, I subbed 32/r² for h

    asked by sh
  302. 7th grade

    i need help with social stuides describe islam in the 600's

    asked by maya
  303. Maths

    How to work out the comparison 13 out of 39 as a percent

    asked by Shannon
  304. chemistry

    If a volume of nitric oxide gas at 25.0°C increases from 2.00 L to 3.00 L, what is the final Celsius temperature? Assume pressure remains constant

    asked by Anonymous
  305. chemistry

    146 mL of wet H2 gas is collected over water at 29.0 degrees celsius and room pressure of 750 torr. give the volume of the dry H2 gas collected at STP, give the mass of the dry H2 collected, and give the volume of the dry H2 at room conditions and the

    asked by melanie
  306. Math 157

    Can someone please help me. At a quality control checkpoint on a manafacturing assembly line, 10% of the items failed check A, 12% failed check B, and 3% failed both checks A and B. a. If a product failed check A, what is the probability that it also

    asked by Rena
  307. english

    unscramble the country sdettaietnsu

    asked by bobby
  308. General Chemistry

    An unknown compound has a formula of CxHyOz. You burn 0.1523 g of the compound and isolate 0.3718 g of CO2, and 0.1522 g of H2O. What is the empirical formula of the compound? If the molar mass is 72.1 g/mol what is the molecular formula?

    asked by Jashmid
  309. physics

    Consider a level flight turn of a propeller-driven airplane in which the airplane makes a complete circular turn in 1.6 min. If the plane's speed is 180 m/s, what is the radius of the circle? 1 m What is the centripetal acceleration of the plane? 2 m/s2

    asked by beth
  310. World History

    What Iberian institutions were transplanted to the Americas?

    asked by Lala
  311. English

    1. None of the guests (has, have) left. 2. Each of these apples (is, are) ripe. 3.One of my favorite songwriters (is, are) Billy Joel. 4.Some of my cousins (has, have) come to my party. 5.All of the bread (was, were) eaten. Tell if the indefinite pronoun

    asked by Chris
  312. PHYSICS

    Search: a 1.0 kg mass weighs 9.8 n on earths surface and the radius of the earth is roughly 6.4x10 to the 6 m. what is the mass of the earth and the average density of Earth

    asked by Tracey
  313. General Chemistry

    CaO + 2NH4Cl > 2NH3 + H2O + CaCl2 If 112 g of CaO and 224 g of NH4CL are mixed the theoretical yield of NH2 is 68.0 g. If only 16.3 g of NH3 is actually obtained, what is the percent yield?

    asked by Jashmid
  314. cal 1

    Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola. (Round your answers to the nearest hundredth.) y = 7 - x^2

    asked by Jordan
  315. Cal 1

    The top and bottom margins of a poster are each 12 cm and the side margins are each 8 cm. If the area of printed material on the poster is fixed at 1536 cm^2, find the dimensions of the poster with the smallest area.

    asked by Lee
  316. World History

    how did the caribbean serve as a model for the spanish empire?

    asked by Lala
  317. Cal 1

    Find the most general antiderivative of the function. Use C for any needed constant. f(x) = x - 6

    asked by Tweak
  318. Cal 1

    Find the most general antiderivative of the function. Use C for any needed constant. g(θ) = cos(θ) - 5sin(θ)

    asked by Nykyrian
  319. Chemistry

    If you have Hydrochloric acid, how many grams of aluminum must you use to produce 57.0 L of hydrogen at STP? 2Al(s)+6HCl(aq) --> 3H2(g)+2AlCl3(aq)

    asked by Brittany
  320. World History

    How did the Portuguese experience in Brazil differ from the Spanish experience in Latin America? ... I don't really have any idea HELP please.

    asked by Lala
  321. 6th grade

    0.4/2.4=f/6 Dont know how to solve please explain so i can know thank u

    asked by CJ
  322. General Chemistry

    2Fe2O3 + 3C > 4Fe + 3CO2 If 6.2 mol of Fe2O3 is used, what amount of C is needed, and what amounts of Fe and Co2 are produced?

    asked by Jashmid
  323. Calculus

    If y=xln(x)^2 , then dy/dx=

    asked by Anna
  324. Math Finite

    College students were polled about favorite types of food. 50% liked pizza, 40% liked hamburgers, and 20% liked both. What percent liked pizza OR hamburgers?

    asked by Erkaluv
  325. english

    can someone help me need ideas for science fiction story and the rationale behind it, The Martian Chronicles 1950

    asked by carole
  326. Calculus

    A line through the origin, rotates around the origin in such a way that the angle, ¦È, between the line and the positive x-axis changes at the rate of d¦È/dt for time t¡Ý0. Which expression gives the rate at which the slope of the line is changing?

    asked by Anna
  327. chem

    AgNO3 + NaCl produces AgCl + NaNo3 how much AgCl is produced when 3.10g of AgNO3 and .600g of NaCl react?

    asked by alex
  328. chemistry

    how would you solve this??? in short and long form? 238 12 (4) 1 92 U + 6 C ---> 0 N + _____

    asked by monique n
  329. English

    Can anyone see any rhetorical device in this sentence? His father’s voice: You gonna let ’em push you around like that, boy? “No sir, Daddy,” Perry whispered. “I sure as hell ain’t.”( Sigler 227)

    asked by Andy
  330. economics

    Give an example of how confidence intervals could be used in your workplace.

    asked by Anonymous
  331. organic chwmistry

    When bromobenzene reacts with propene in a Heck reaction, two constitutional isomers are obtained as a product. Give the structures of the two

    asked by jimmy
  332. Algebra

    How can you determine if two lines are perpendicular?

    asked by Cathy
  333. science physics

    A giant crane in Washington DC was tested by lifting a 2.232x10^6 kg load. Find the magnitude of the force needed to lift the load with a net acceleration of 0m/s^2

    asked by Melina
  334. chemistry

    Determine the mass of NaCl in 1.0 L of 3.0 % by mass aqueous solution of sodium chloride. The density of the solutions is 1.10 gmL-1 please explain all the steps, thanks!

    asked by Stacy
  335. Pre-Calc

    Can anyone help with the following problem please...Thank u so much Let f(x) =|9x|. For the area above the x-axis and between the lines x= -9 and x=18 a. draw and label a sketch with the area shaded b. find the area of the region in the xy-plane under the

    asked by Amy
  336. Science

    I need to have an essay written about a book and the scientific relation behind it. I would do it myself but I'm not sure I know what to do and it's a large portion of my grade and it's not due until June but I need it soon as possible so I can get the

    asked by Mickie
  337. Physics

    Imagine that a small bug is trapped between two blocks ( 10kg and 5kg) In each case a person applies a force of 150 N to the right, but the order of the blocks is reversed. In which case will the bug have a better chance of surviving? Calculate the force

    asked by Jackie
  338. Chemistry

    "A 25.0% solution of Al2(SO4)3 has a density of 1.75 g/ml. What is the mass of dissolved solute in 40.0 ml of solution?" How would one set this problem up?

    asked by Kathryn
  339. statistics

    Which statistical test woul you use to assess whether or not there is a relationship between the variables SEX and HOURLY WAGES?

    asked by Dee
  340. math

    A fence post is to be along side of a lot measuring 114 feet. 19 fence posts are to be used, 1 at each end and 17 equally spaced between the ends.What is the distance between centers of 2 consecutive fence post?

    asked by Randu
  341. physics

    A satellite moves in a circular orbit around the Earth at a speed of 5661 m/s. (b) Determine the period of the satellite's orbit. the satilites altitude above the surface of earth is 6076312.71m. im using the equation P=2*pi*r/v and am coming up with 1.87

    asked by kaitlyn
  342. statistics

    A random sample of 20 hogs on farmer Brown's hog farm had an average weight of 350 pounds and a SD of 70 pounds. Find 95% confidence interval estimate of the mean weight of all farmer Brown's pigs.

    asked by Lacey