Questions Asked on
December 6, 2012

  1. math,algerbra

    find circumference and area of circle use 3.14 for unknown round to nearest tenths. 2) r=11.5 3)d=3.5 show steps to solve

    asked by Anonymous
  2. algebra

    the formula d=(square root)12,800+h^2 gives the distance d in kilometers to the horizon from a satellite h kilometers above Earth.Find the distance to the horizon to the horizon from a satellite 4200 km above Earth. Round to the nearest kilometer. PLEASE

    asked by alexis
  3. Physics

    A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.

    asked by Anonymous
  4. Child day care

    12. Which of the following is a factor that's very important to high-quality child care, but not often covered in state licensing regulations? A. The group size B. A fire safety clearance C. The staff-to-child ratio D. An annual visit by a representative

    asked by Molly
  5. physics

    A 5.7 kg block attached to a spring executes simple harmonic motion on a frictionless horizontal surface. At time t = 0 s, the block has a displacement of -0.70 m, a velocity of -0.80 m/s, and an acceleration of +2.7 m/s2. The amplitude of the motion is

    asked by quaviz
  6. Chemistry

    Concentration 15.8 mg/L Final Volume 100.0 mL What is the concentration of phosphate in the original lake water sample if the unknown lake water sample in the option has been diluted by taking 25.0 mL of lake water and diluting it to the indicated final

    asked by Anon
  7. Chemistry

    Suppose that absorbances of several solutions were measured at 545 nm. What is the frequency of this wavelength? What is the energy of this wavelength? (h=6.626 times 10^-34J*S)

    asked by Anon
  8. statistics

    Answer the following: (A) Find the binomial probability P(x = 5), where n = 12 and p = 0.70. (B) Set up, without solving, the binomial probability P(x is at most 5) using probability notation. (C) How would you find the normal approximation to the binomial

    asked by Huffette
  9. ACC305 Accounting for Decision Making

    I am trying to get my research paper done, but I am having some trouble find the information that I am looking for on the company Bausch & Lomb. Here are the question that I am having trouble finding information for. 1. Who within the organization has the

    asked by Yolanda
  10. maths-probability

    From the word HINDUSTAN ===== (a) In how many of these anagrams none of the vowels come together. (b) In how many of these anagrams do the vowels and the consonants occupy the same relative positions as in HINDUSTAN?

    asked by Anamika
  11. physics

    A 0.255kg rock is thrown with a speed of 12.0m/s.How much energy does it initally passess?

    asked by Anonymous
  12. physics

    A 1.56kg seagull dives through the air and gains 4495 of energy.What is the birds speed?

    asked by Anonymous
  13. Geometry

    Write the if-then statement that follows from that pair of true statement. If the doorbell rings, then the dog barks.

    asked by Leslie
  14. Geometry

    What can you conclude from the given true statements? If there is a full moon tonight, the dog will howl. The moon is full tonight.

    asked by Leslie
  15. statistics

    An organization sends a random sample of surveys to 100,000 people and received 4,781 responses. A) Give a 95% confidence interval for the true proportion of those from their entire mailing list who may donate.

    asked by Shane
  16. algebra

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single,

    asked by Anonymous
  17. statistics

    The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single,

    asked by Anonymous
  18. ssct

    (phyics) question: calculate the final temperature of the water if 400grams of water at 80degress Celsius is poured into a 100grams pot at 30dgrees Celsius .

    asked by arjet
  19. math

    determine the radius of convergence of the power series: Σ(n=1 to inf) [(2^n * n! * x^n)/ n^n]

    asked by bobby
  20. Microeconomics

    1. Complete Table-1 (Joseph Farms, Inc., Cost and Revenue Data), either as a Microsoft Excel spreadsheet, or as a Microsoft Word table. Assume that the price is $165 and the fixed costs are $125, at an output level of 1. Also assume that the data

    asked by Sherry
  21. english

    i need help writing an annotated bibliography, and cite the work. and i don't know how to get started on data-my topic is "why are so many black young mens killing each other. or should i write about sucide commited by yong people

    asked by edna
  22. Math Statistics

    If the range of a set of scores is 14 and the lowest score is 7, what is the highest score? Is it also 7 since 14- 7 = 7? Just asking.

    asked by Milen
  23. Chemistry

    So my chem experiment asks us: What is the molarity of a 6.0 ppm solution (it's a 6.0 ppm chlorophyll solution, hexane is the solvent) Now, I've found a few ways to solve for it but they both give me different values. If it's possible, could you just tell

    asked by Just One Stranger
  24. Linear Programming - Math

    A small software company publishes computer games and educational and utility software. Their business strategy is to market a total of 36 new programs each year, at least four of these being games. The number of utility programs published is never more

    asked by KIM
  25. Calculus

    How many coefficients in the binomial series expansion of (1+x)^7 are divisible by 7?

    asked by Kat
  26. Chem/ Calculating Lattice Energy, Vapor Pressure

    How do you calculate lattice energy? I have to place the following in order of decreasing magnitude of lattice energy, but I don't know how to do it. KF MgS RbI Is there a formula or some simple way of knowing which has the greatest energy? 2. I also have

    asked by Danya
  27. calculus

    a bridge is 10 m. above a canal. A motorboat going 3 m/sec passes under the center of the bridge at the same instant that a woman walking 2 m/sec reaches that point. How rapidly are they separating 3 sec. later?

    asked by Anonymous
  28. math

    You have finally saved 10,000 and are ready to make your first investment. You have the three following alternatives for investing that money: 1) Captial cities ABC Inc. bonds with a par value of $1000 that pays an 8.75 percent on its par value in

    asked by Anonymous
  29. pharmaceutical chemistry

    when is a substance classified as pharmaceutical aid or necessity?PLEASE HELP ME :)THANKS A LOT.

    asked by Ally
  30. mba

    from a set of 1000 observations known to be normally distributed the mean is 534 cm and sd is 13.5 cm. how many observations are likely to exceed 561 cm, how many will be between 520.5 cm 547.5 cm, between what limits will the middle 50% of the

    asked by subhash
  31. physics

    Two particles A and B have velocities 3^i and v^j respectively (in m/s). (a) Find rBjA; the position of B relative to A for all t given that rBjA(t = 0) = 9^i + 6^j (in metres). (b) Find the value of v such that A and B collide. (c) If v = 1 m/s, nd the

    asked by mary
  32. physics

    A boy throws a ball at 5.5 m/s at an angle of 25.4° above the horizontal off a cliff which is 70.8 m high. What angle does the velocity of the ball make with the horizontal 0.78 s after the throw? (make the angle positive if the angle is above the

    asked by vince
  33. Finance

    An income-producing property is priced at $600,000 and is expected to generatethe following after-tax cash flows: Year 1: $42,000; Year 2: $44,000; Year 3:$45,000; Year 4: $50,000; and Year 5: $650,000. Would an investor with arequired after-tax rate of

    asked by Francesca
  34. Physics

    A mountaineer

    asked by LALA
  35. trignometry

    how to find the value of any standard angle ??? for example sin 60*??? without using table

    asked by suraj
  36. science ocean

    i need help. ms.sue espesually you.but give me wods that are for third graders.give me one paragragh.thanks

    asked by bloom
  37. Surface area

    if height and radius of frustum are h1 nad r1 respectively . if h2 and r2 are the heights and radius of the smaller base of frustum respectively and h2:h1 =1:2,then r2:r1 is equal to?

    asked by sehgal
  38. French

    Put in the correct order : nous , habitons. Voila , maison, ou ( where) , la

    asked by Rim
  39. calculus

    a lighthouse is 1 km from the shoreline and revolves at 10 pi radians a minute what is the speed of the light as it sweeps across the shore as it lights up at sand at 2 km from the light house

    asked by Shelby
  40. Statistics

    A quality control inspector wants to estimate the mean inside diameter of the washers produced by a certain machine. A preliminary sample indicates that the inside diameters have a standard deviation of 0.30 millimeters. What sample size does he need to

    asked by Carolyn
  41. Physics - Heat Transfer

    I am trying to calculate heat transfer between two objects. The units are as follows: m1: 100 g t1: 10 degrees C spec heat 1: 1.00 cal/g degree C m2: 200 g t2: 90 degrees C spec heat 2: 0.2 cal/gm degree C I set Q1 = Q2 m1 x spec heat 1 x delta T1 = m2 x

    asked by Brenda
  42. Physics

    A 700 KG horse is pulling a sled at a velocity of 3.5 m/s. If the horse's power output is 746 watts, the force exerted on the sled is?

    asked by Monika
  43. Economics

    Which of the following is a characteristic of a traditional economy? A. It encourages innovation and change. B. It is usually based on light industrial production. C. It has a high standard of living. D. It revolves around the family unit.

    asked by Ella
  44. us government

    A person in Michigan applying for a job in Alabama can expect not to be discriminated against because of the ___________ Clause.

    asked by ricky
  45. Maths

    If tom got 200 euro for his birthday. He spent 1.0 how much did he spend?

    asked by chloe
  46. math

    0.5 kg of tea was purchased at Rs 80 per kg.if it was sold at a gain of 10%.find its selling price

    asked by words problem
  47. Chemistry

    Consider the reaction 3CH_4(g)rightarrow C_3H_8(g)+ 2H_2(g). Calculate delta G at 298 K if the reaction mixture consists of 40atm of CH_4, 0.015atm of C_3H_8, and 2.3×10^−2atm of H_2.

    asked by Josh G.
  48. Science

    How can a cup of water have more thermal energy than one pitcher of water?

    asked by Anonymous
  49. Physics

    1.A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change?

    asked by Antone
  50. Chemisty

    if the pressue within a tire changes from 1.35 atm to .95 atm the temperture will?

    asked by Anonymous
  51. chemistry

    The standard free energy of activation of a reaction A is 78.2 kJ mol–1 (18.7 kcal mol–1) at 298 K. Reaction B is ten million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol–1 (2.39 kcal mol–1)

    asked by Deidra
  52. Algebra 2 Rational Equations

    What is the solution set of the equation? I know the answer is {-1} I just don't know how to get there. X^2-16 x-3 --------- = ------- -1 (x+4)(x+2) (x+2)

    asked by Josh
  53. Chemistry

    The fictitious compound, arrhenium fluoride ( ), reacts with itself to form a dimer with the formula Ah2F2 . The reaction is second order in AhF. The value of the rate constant is 8.591x10-3 M-1s-1. What is the initial rate of reaction in a reactor filled

    asked by T
  54. physics

    A nearsighted person has a far point located only 200 cm from his eyes. Determine the focal length of contact lenses that will enable him to see distant objects clearly. does anyone have any suggestion on how to tackle this problem?

    asked by Alex
  55. ACC305 Accounting for Decision Making

    I am trying to get my research paper done, but I am having some trouble find the information that I am looking for on the company Bausch & Lomb. Here are the question that I am having trouble finding information for. 1. Who within the organization has the

    asked by Anonymous
  56. Physics

    How much heat is required to melt 50 grams of ice heat it to its boiling point and then turn it into vapor

    asked by Anothony
  57. Chemistry

    A 50 gram sample of liquid water at 25 degrees C is mixed with 29 grams of water at 45 degrees C. The final temperature of the water is...?

    asked by Bree
  58. geometry

    Define projection of a line

    asked by umesh
  59. English

    (1)It was December 7, 1941. (2) The freighter Florentine, 320 miles northeast of the Hawaiian Island of Hilo was lumbering along at about 15 knots when the garbled message came in over the radio: (3) “Attack on Pearl Harbor; This is not a drill!”

    asked by Sandia
  60. Chemistry

    The combustion of 1 mole of CO according to the reaction CO(g) + ½O2(g) → CO2(g) + 67.6 kcal gives off how much heat?

    asked by Monica
  61. spanish

    using preterite describe a normal morning routine until i get to class

    asked by marlene
  62. airthmetic progression

    If m, n are natural numbers, m > n, sum of mth and nth term of an increasing AP is 2m and their product is m^2–- n^2, then what is the (m+n)th term of the A.P.?

    asked by sunny
  63. History

    Compare and contrast Christianity and Islam.

    asked by Britney
  64. diolouge

    Can someone post or post a website of funny diolouges. The diolouge has to be at least 5 minutes long.

    asked by Celest
  65. Physics

    Andre at 60 kg, hits the trampoline after falling from 4 meters. The trampoline stretches 0.6 meters and andre stops in 0.3 seconds.What is the force constant of the trampoline?

    asked by Jaden
  66. Physics

    a child twirls a yo-yo about in a horizontal circle. The yo-yo has a mass of 0.20 kg and is attached to a string 0.8 m long. what is the velocity of the yo-yo? thanks!

    asked by Melissa
  67. Math

    3. In the small country of Varia, a bill becomes law only if of the senators approve it. What percentage is ? (1 point) 53% 58% 68% 88% 4. Write the percent 96.55% as a decimal. (1 point) 9655 965.5 0.9655 9.655 5. Liam wants to buy a bicycle that costs

    asked by Jane
  68. Science

    1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one

    asked by This Girl
  69. Mia Math

    22miles/55miles=12miles/Mhours 48 30 45 22 i think its 22 Solve the proportion using cross products.

    asked by Anonymous
  70. calculus

    A ball is thrown vertically upwards from a height of 6 ft with an initial velocity of 60 ft per second. How high will the ball go? Note that the acceleration of the ball is given by a(t)= 32 feet per second per second.

    asked by miranda
  71. chem

    What is the pH of a 0.22 M solution of HClO4?

    asked by val
  72. English

    (1)It was December 7, 1941. (2) The freighter Florentine, 320 miles northeast of the Hawaiian Island of Hilo was lumbering along at about 15 knots when the garbled message came in over the radio: (3) “Attack on Pearl Harbor; This is not a drill!”

    asked by Sandia
  73. chemistry

    What concentration of the lead ion, Pb^{2+} , must be exceeded to precipitate PbCl2 from a solution that is 1.00 x 10^{-2} M in the chloride ion, Cl^- ? Ksp for lead chloride is 1.17×10−5 .

    asked by Anonymous
  74. MINE Math

    16. Calculate the interest earned on a savings account with $800.00 that is invested at 5% annual simple interest for 5 years. (1 point)

    asked by Milly
  75. Physics

    What is the gravitational force between two runners standing 100 meters apart on a track, if their masses are 60 kg and 75 kg respectively?

    asked by Justin
  76. MATHS

    The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,800. a. Find the percent of increase in population for town A and for town B. b. Which town had the greater percent of increase?

    asked by Lily
  77. statistic

    A grain mill manufactures 100-pound bags of flour for sale in restaurant supply warehouses. Historically, the weights of bags of flour manufactured at the mill were normally distributed with a mean of 100 pounds and a standard deviation of 15 pounds. a.

    asked by anonymous
  78. analytical chem

    What is the pH of a solution by dissolving 8.00 mmol of NaOAC in 200 mL of 0.100 m HOAC. (you need the pka for acetic acid)

    asked by ak
  79. INTRODUCTION TO COMPUTERS

    THE COMPUTER MOUSE IS USED TO

    asked by datrel
  80. chemistry

    A balloon is inflaed outdoors on a cold day in lowa at a temperature of -40 c to a volume of 2.00 l. If the pressure remains constant, what is the volume of the same balloon if taken indoors at a temperature of 25 c?

    asked by Yolanda
  81. calculus

    Use left endpoints and 9 rectangles to find the approximation of the area of the region between the graph of the function cos2x and the x-axis over the interval [0, pi/2] . Round your answer to four decimal places.

    asked by Kayla
  82. Physics

    16) A curve of radius 120 m is banked at an angle of 18°. At what speed can it be negotiated under icy conditions where friction is negligible? 2 m/s 12 m /s 20 m /s 5 m/s 11 m/s

    asked by Jake
  83. College Physics

    14) Given the following vectors, find the magnitude and direction: • A = 47 m and the angle is 0° • B = 62 m and the angle is 35° This is relative to the x-axis Magnitude: 401 m 140 m 104 m 0 m 503 m Direction: 20° 45° 55° 220° 90°

    asked by Stephen
  84. This is Urgent Science

    1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin can be produced by _______, which introduces DNA from one

    asked by This Girl
  85. Physics

    How much work is done by the centripetal force (in this case, the friction between the tires and the road) on a 1200 kg car moving on a circular track of radius 50 meters at a constant speed of 31.4 m/s?

    asked by Alainna
  86. statistics

    Experience in investigating insurance claims shows that the average cost to process a claim is approximately normally distributed with a mean of $80. New cost-cutting measures were started and a sample of 25 claims was tested. The sample mean of the costs

    asked by Aurora G
  87. business

    Read the Thomas article, Squeeze Play, and discuss how long you think the emerging upstart airline carriers in Asia that are featured can continue their competitive role in the face of changing travel patterns and consumer behavior brought on by low cost

    asked by Anonymous
  88. Physics, check my answer pls

    4. All of the following are true about torque except: A. its units are Newton-meters. B. it can only be produced by a force. C. torque is zero unless the force is pointed perpendicular to the moment arm. D. a force whose line of action passes through the

    asked by Nev
  89. Math

    9m-7m-5=17; m=11

    asked by Cj ashton
  90. Physics

    In the diagram below, how far from the end of the board can a 60 kg person walk before it will tip over? The mass of the board is 100 kg, and a 2-meter section of its 6-meter length hangs over the edge. Assume that the entire mass of the board acts at the

    asked by Austin J
  91. physics

    An airplane flies due south at 185 km/h relative to the air. There is a wind blowing at 68 km/h to the east relative to the ground. What are the plane's speed and direction relative to the ground?

    asked by Danny
  92. PHYSICS - PLEASE HELP

    Three objects are moving along a straight line as shown in the figure. Taking the positive direction to be to the right, what is the total momentum of this system? Pos ---> 5.00 m/s, 8.00 kg Neg 2.00 m/s, 3.00 kg A) -14 kg m/s B) +106 kg m/s C) +14 kg m/s

    asked by Anonymous
  93. english

    What is the correct answer I ____ on the couch last night. A. lie B. lay C. laid D. lain

    asked by mom
  94. physics

    Early skeptics of the idea of a rotating Earth said that the fast spin of Earth would throw people at the equator into space. The radius of Earth is about 6400 km. Show why this objection is wrong by determining the following information. (a) Calculate the

    asked by Danny
  95. math

    you borrow $1200 from a bank that bank charges 9.5% simple annual interest. after 15 months you pay back the loan. how much interest do you pay on the loan? what is the total amount that you pay the bank.

    asked by jordan
  96. Math

    Schoolwork: 7:35 a.m. until 11:15 a.m. What is the elapsed time? Explanation why your answer is correct:

    asked by Bell
  97. Physical Science

    A car with a mass of 1,400 kg is traveling at a speed of 40 m/s. What is its momentum

    asked by Jazlynn
  98. Math

    Lunch and Piano Practice: 11:15 a.m. until 12:50 p.m. What is the elapsed time? Explanation why your answer is correct:

    asked by Bell
  99. Math

    Schoolwork: 12:50 p.m. until 4:05 p.m. What is the elapsed time? Explanation why your answer is correct:

    asked by Bell
  100. Math

    Time with friends: 4:05 p.m. until 5:45 p.m. What is the elapsed time? Explanation why your answer is correct:

    asked by Bell
  101. Math

    Dinner: 5:45 p.m. until 6:10 p.m. What is the elapsed time? Explanation why your answer is correct:

    asked by Bell
  102. math

    Is it possible to have a figure an area of 9 square units and a perimeter of 30? If not, why? (PS I don't think it is possible.)

    asked by Joey
  103. geometry

    if in triangle JKL, JK= 9, KL = 11, and JL=12, and in triangle PQR, PQ=9, QR=11, and PR=11, explain why triangle JKL and triangle PQR are not congruent

    asked by sherianna johnson
  104. English

    This homework question was removed due to a copyright claim submitted by Connections Education.

    asked by Anonymous
  105. Math

    The window is 60 inches wide. What is the width of the window in feet explain how to get the answer

    asked by Alinna
  106. Math

    y/9 = 4 2/3 . Solve for Y . PLEASE HELP!

    asked by Molly
  107. Math

    1. Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (–1, 2) and (3, –3). (2, 4) and (6, 6) (2, 4) and (6, 6) (–2, 4) and (6, –6) (2, –1) and (–3, 3) 2. Given a scale factor of one-half , find

    asked by Briana T
  108. English

    How coypu use duke in a sentence ?

    asked by Sam
  109. English

    Many people are surprised to learn how __1__ poverty is __2__ America. Today millions live below the poverty line, and the number seems to escalate daily. Judy and Martin Reed exemplify the old saying, “Opposites attract.” A __3__. Judy chooses work

    asked by Brad
  110. business

    What did Alexander Hamilton do to improve the US deficit?

    asked by allee
  111. business

    what is the bullwhip effect in/and supply chain?

    asked by allee
  112. geometry

    Pqrs -jklm with a scale factor of 4:3qr-8cm what is the value of kl

    asked by christy
  113. Science help needed

    Posted by This Girl on Thursday, December 6, 2012 at 1:41pm. 1. __________ is one type of genetic engineering, in which a normal allele is placed into a virus. (1 point) A color blind test Down syndrome Gene therapy Polygenic inheritance 2. Human insulin

    asked by This Girl
  114. Spanish

    Conjugate the following irregular verbs in the simple present tense (indicative) 6. Tener(to have) Yo __________ 7. Tener(to have) Nosotros ________ 8. Venir(to come) Tú _________ 9. Venir( to come) nosotros________ 10. Salir( to leave). él/ella_________

    asked by Molly
  115. statistics

    Scores from a statistics exam are reported as deviation scores. Which of the following deviation scores indicates a higher position in the class distribution?

    asked by michelle
  116. english

    Identify the underlined words in each sentence. 7. (Because chickens peck at each other,) someone invented chicken glasses. independent clause adverbial clause complex sentence adjectival clause 10. The Great Dane, (a large dog,)leapt over the fence.

    asked by Anonymous
  117. Geometry

    C:\Users\Bailey Bubble\Documents\Untitled.png this is the question with the picture and the answer choices.

    asked by Jessie
  118. physics

    calc the buoyant force on a 2 L helium balloon

    asked by chris
  119. Geometry

    Where can the lines containing the altitudes of an obtuse triangle intersect? I. inside the triangle II. on the triangle III. outside the triangle A)I only B)I or II only C)III only D)I, II, or III PLEASE HELP ME ASAP!!!!

    asked by Corey
  120. Algebra

    If I have 10000 dollars and the interest rate is .40% when will my money double if compounded anually?

    asked by Anonymous
  121. Social Studies

    How did being part of the Arab Islamic world affect Spain?

    asked by Cherie
  122. 1 math question help

    Write the inequality and solve for the following problem: The result of 6 subtracted from a number n is at least 2.

    asked by Jman
  123. Algebra

    Help Please! 2n(x-n)=x-5n+2 Solve for X

    asked by Josie
  124. scientist

    what is the therms " average atomic mass is a .............. average ,and so is calculated from a" normal " average?

    asked by asiya
  125. Psychology

    How does one's cognitive processes shape some aspects of personality?

    asked by Cynthia
  126. 7th grade science Ms. Sue please

    2. The smallest unit of life is the _____. (1 point) cell homeostasis organism protein 3. The nucleus is the largest of the _____. (1 point) chloroplasts mitochondria organelles ribosomes 6. Which is not found in animal cells? (1 point) central vacuole

    asked by Delilah
  127. Psychology

    How does biological and environmental factors shape our cognitive processes?

    asked by Cynthia
  128. 7th grade science Ms. Sue please only 5 questions

    11. Which of these is selectively permeable? (1 point) door window screen wall mirror 12. The process that releases energy without using oxygen is ____. (1 point) photosynthesis respiration osmosis fermentation 13. The chromosomes in the nucleus of a cell

    asked by Delilah
  129. Geometry

    Which three lengths cannot be the lengths of the sides of a triangle? A)25 m, 16 m, 10 m B)15 m, 13 m, 12 m C)18 m, 5 m, 10 m D)8 m, 8 m, 15 m

    asked by Jessie
  130. chemistry

    QUESTION: Calculate the standard free-energy change (deltaG°) for the following reaction at 25 °C in kJ. 2Ag^3+(aq) + 3Zn(s) 2Au(s) + 3Zn^2+(aq) here's what i have so far: first i wrote out the half reactions: Au^3+(aq) + 3e^- --> Au(s) = +1.52*2 Zn(s)

    asked by chem help please
  131. Physics

    A Ladder of length L and mass m leans against wall at angle theta from the vertical. The wall is smooth so that only horizontal force N is exerted on the top of the ladder. A fireman of mass M climbs a distance d upward as measured along the ladder. (a):

    asked by Mike
  132. algebra

    Melissa drives her car 200 kilometers in 2.5 hours. How far can she drive in 6 hours at the same rate?

    asked by Matt
  133. Math

    (1/9)x^3+67 at x=9 Is the answer 148 Please help

    asked by Kai
  134. art

    How does the Holy Trinity by Masaccio express the humanist ideals of the15th century Renaissance? Include examples from two other artists from the same era who express the same humanist ideals. Use one example from Gardner’s Art through the Ages and one

    asked by kim
  135. physics

    A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.

    asked by Anonymous
  136. Physics- Elena please help!

    An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. Late at night, the traffic flow is only 7 cars per minute. (b) What

    asked by Anonymous
  137. Math-Calculus

    Volume using disk method: x=.000574y^(2)-.439y+185 Interval: (0,500)

    asked by Kimberly
  138. physics

    A runaway truck lane heads uphill at 30◦ to the horizontal. If an out of control 15000 kg truck enters the lane going at 30 m/s , how far along the ramp does it go? The acceleration due to gravity is 10 m/s2.

    asked by Anonymous
  139. Chemistry

    Using Dimensional Analysis, how many moles of sodium is 32.5 g of sodium? Could you please tell me the steps on how to solve this I am stumped.

    asked by Jimmy
  140. Math(Sample Spaces)

    Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue

    asked by Jerald
  141. Chemistry

    How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?

    asked by Allie
  142. Chemistry 3A

    a titration required 18.38mL of 0.1574 M NaOH solution. how many moles of NaOH were in this volume?

    asked by Gurjot
  143. Chemistry 3A

    a student weighed out 1.106g of KHP. How many moles was that?

    asked by Gurjot
  144. 1 last math question

    3. Which of the following equations has an infinite number of solutions? 3x – 3 = –4x 2y + 4 – y = 16 7x + 5 = 4x + 5 + 3x 6y – 2 = 2(y – 1)

    asked by Jman
  145. Chemistry

    How many liters of hydrogen gas can be produced at 300.0K and 1.55atm if 20.0g of sodium metal is reacted with water?

    asked by Allie
  146. chem 101

    how much heat is required to melt 25.6g of solid diethyl ether(at its melting point)

    asked by to
  147. Algebra

    Find the slope and y-intercept of the equation. y=mx+b y = (2-a)x + a

    asked by Britney
  148. Spanish

    Can u correctly write these sentences in Spanish,plz? 1. I'm very proud of my son. 2. He can spell his name backward and forward. 3. What's his name? 4. How much does a new car cost in America? 5. You must be very rich. If tried already this is wat I got,

    asked by Molly
  149. physics help please!

    The motion of a piston in an auto engine is simple harmonic. The piston travels back and forth over a distance of 23 cm, and the piston has a mass of 1.7 kg. 2515 rpm 23 cm max speed of the piston 30.28757 m/s What is the maximum force acting on the piston

    asked by michelle
  150. Math

    Writing in math Braden and bialy each bought a kazoo for $0.89.they each paid with a $1.00 bill. Explain two different ways to show their change.

    asked by Anthony
  151. math

    There are 12 slices of pie if jerry ate 1/3 of the pie, how many slices did he eat?

    asked by nikki
  152. Chemistry

    Carburization" of pure iron (Fe) is carried out at 950∘ C. It is desirable to achieve a carbon content of 0.9% at a depth of 0.1 mm below the surface. A constant supply of carbon at the surface maintains a surface concentration of 1.2%. Assuming the

    asked by Andrea
  153. algebra

    x^2+3+(1/10) How to factor that? plz help

    asked by Anonymous
  154. Chemistry

    An undesirable consequence of welding steel by acetylene torch is the rise in hydrogen concentration in the metal. That hydrogen contamination embrittles the steel. The metal is typically subjected to a vacuum heat treatment to restore ductility. A steel

    asked by Andrea
  155. Chemistry

    You wish to remove nitrogen from the near-surface region of a plate of cobalt which is 1.0 cm thick. The plate is placed in a furnace at 417∘ C where an atmosphere of H2 and NH3 reacts with the nitrogen in the cobalt and fixes the surface concentration

    asked by Andrea
  156. Chemistry

    (a) Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a chamber filled with pure hydrogen and maintained at a constant pressure. At what depth from the surface will the concentration

    asked by Andrea
  157. Chemistry

    The Gaussian error function can be approximated for small values of x as erf(x)≈x. Suppose a silicon wafer is exposed to aluminum vapor at 1300∘ C. At what distance (in centimeters) will the concentration of Al be 35% of the surface concentration in

    asked by Andrea
  158. Chemistry

    A p-n junction is obtained at a depth of 3×10−3 cm by diffusion of antimony (Sb) into p-type germanium. What is the acceptor concentration in the bulk Ge, if diffusion was carried out for three hours at 790∘ C? Given: Constant Sb surface concentration

    asked by Andrea
  159. Chemistry

    To increase corrosion resistance, chromium is diffused into steel at 980∘ C. If the surface concentration of Cr is maintained constant at 100%, how long will it take (in days) to achieve a Cr concentration of 1.8% at a depth of 0.002 cm below the steel

    asked by Andrea
  160. Chemistry

    A p-n junction is to be created by diffusing boron (B) into an n-type silicon wafer with an existing carrier concentration of 1015/cm3. The location of the junction will be 6μm below the surface of the wafer. The surface concentration of boron will be

    asked by Andrea
  161. science

    what is symbiosis

    asked by kaki
  162. CHEM !(MOLE) PLZ HELP!

    1.How many grams are in one mole silicon? 2. how many moles are in 128 grams of oxygen gas (O2)? 3.How many molecules are in 2 moles of AIO? 4.How many moles are in 18.06 x 10 to the 23 power? 5. how many moles are in 100 grams of CH4?

    asked by tyneisha
  163. math

    A cylindrical container has a volume of 226 cubic inches. the container is filled 3/4 of the way with water. To the nearest cubic inch, what is the volume of water in the container? How many more cubic inches of water is needed to fill the container?

    asked by sandy
  164. algebra

    matching graphs inequailty

    asked by jake
  165. 3rd grade math

    jake has an even number of counters. carlos has an odd number of counters. how many more counters do they need to divide the combined total into an even number of groups?

    asked by mythreyee
  166. chem1 WORD PROBLEM!!

    6. how many grams are in 4 moles of Be (OH)3? 7.How many atoms are in 4 moles of C6H12O6? 8.how many moles are in 12.04x10 23 to the power molecules of hamburgers? 9. how many molecules are in grams of Helium gas (He2)? hint:convert then moles then

    asked by tyneisha
  167. math

    Adraiana and kyle have the same number of counters. they combine them with terry's counters and divide the total into 3 equal group. if adriana had 9 counters, what is the least number of counters terry could have had

    asked by mythreyee
  168. science

    What is the difference in pitch and volme as race cars pass by the cmeras at the Indianapolis 500?

    asked by April
  169. Chemistry

    Using Dimensional Analysis One mole of sillicon has a mass of 28.1 g, and one mole of oxygen has a mass of 16.0 . What is the mass of one mole of sillicon dioxide.

    asked by Lisa
  170. math

    A crew needs to pick up litter along one side of a section of highway that is 49.5 kilometers long. How many kilometers must the crew clean each day in order to finish the job in 5.5 days? A 0.11km B 0.9 km C 9.0 km D 11.2 km

    asked by stephanie
  171. English Comp

    read Chapters 1 and 2 and your Instructor’s Guidance for Week One again, applying the Survey-Question-Read-Recite-Review (SQ3R) strategy as you reread the materials. Discuss how this reading strategy is similar to and/or different from the way you read

    asked by Lita
  172. math

    Solve: 1 2/8 x 2 1/9= A 2 10/36 B 3 11/36 C 4 5/36 D 2 23/36

    asked by stephanie
  173. English

    I need help on this story it be called Invitations by Carol Shields, I not able to post story on here but if you go to google and type in search box : invitations by carol shields on monday she looked in her mailbox a books google search come up that be

    asked by Mohammad
  174. Geometry

    In tiangle ABC, centroid D is on the median line segment AM. AD=x+4 and DM=2x-4. Find AM.

    asked by Anonymous
  175. Physics

    The period of motion of an object-spring system is T = 0.474 s when an object of mass m = 296 g is attached to the spring. (a) Find the frequency of motion in hertz. _______Hz (b) Find the force constant of the spring. _______N/m (c) If the total energy of

    asked by Ame
  176. physics

    a car of mass m1800kg is pushed off a cliff of height h = 25.0m how long was the car in the air

    asked by Anonymous
  177. Physics

    A block of mass m = 2.00 kg is attached to a spring of force constant k = 5.15 102 N/m that lies on a horizontal frictionless surface as shown in the figure below. The block is pulled to a position xi = 5.75 cm to the right of equilibrium and released from

    asked by Ame
  178. accounting

    is returned purchased inventory considered as claims exchange(ce)?

    asked by henry
  179. math

    greg has 2 quarters, 1 dime, and 3 nickles. Stan has 3 quarters, 2 dimes, and 2 nickles. how can they share the coins so that they both have the same amount of money?

    asked by mythreyee
  180. Math

    Elsa had a rubber disc that was red on one side and blue on the other. She tossed this disc 3 times. Draw a diagram showing all the possible outcomes she could get in 3 tosses of the same rubber disc 1st toss can be red or blue 2nd toss can be red or blue

    asked by Jerald
  181. GEOMETRY

    In triangle ABC, centroid D is on the median line segment AM. AD=x+4 and DM=2x-4. Find AM.

    asked by Anonymous
  182. Math

    I am a number on the hundreds chart. The sum of my digits is 9. My tens digit is 4. What number am I?

    asked by Jai
  183. physics

    A heavy concrete panel is being lifted into position in a building by means of a crane . The tension of 2.17 104 N in the supporting cable produces a torque with respect to point O. (Let L = 42.0 m.)

    asked by Anonymous
  184. math

    (-u^-5v^2)^-1*u^3v

    asked by dain
  185. business

    an auto manufacturer negotiates a deal to have its cars appear in a Hollywood film. This is an example of a. publicity b. product placement c. media placement d image exposure

    asked by sallly
  186. MATH urgent

    Hello!! 1. find the third derivative of f(t)=(t-1)/(t+1) 2. y= x^(x^2) ; dy/dx please help! thank you!

    asked by Jess
  187. physics

    A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed

    asked by Anonymous
  188. Math

    Caitlin has a pink umbrella and a black umbrella. She has a pink jacket, a blue jacket, and a black jacket. Draw a diagram showing all the possible ways Caitlin can combine her jackets and umbrellas Pink umbrella pink blue or black jacket black umbrella

    asked by Jerald
  189. math homework

    arrays and expanded algorithim 23.17

    asked by Anonymous
  190. Math challenge

    There are 3 circles divided into thirds with a number in each third. The 1st cirlcle has 18, 23 & 49. 2nd cirlce has 25, 62, 38. The 3rd cirlce has ?, 17 & 39. We need to figure out what number is missing from the 3rd circle, and how you figured it out.

    asked by Gabby
  191. Physics- PLEASE HELP

    An interstate highway has been built though a poor neighborhood in a city. In the afternoon, the sound level in a rented room is 114.0 dB as 172 cars pass outside the window every minute. Late at night, the traffic flow is only 7 cars per minute. (b) What

    asked by Anonymous
  192. busines finance

    A self-employed person deposit $3000 annually into a retirement account that earns 8% interest. How much will he have in 25 years?

    asked by Anonymous
  193. Chemistry 12

    given the reacting system: H2 (G) + I2(G) ---> 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum

    asked by Patrick
  194. math

    Find the area of the region under the graph of the function f on the interval [-27, -1]. f(x)= 2-3square root x ? square units

    asked by Britney
  195. math

    The quantity demanded x (in units of a hundred) of the Mikado miniature cameras/week is related to the unit price p (in dollars) by p = −0.2x2 + 80 and the quantity x (in units of a hundred) that the supplier is willing to make available in the market is

    asked by Britney
  196. Accounting

    Harris company borrowed 65,000 by giving 10 year , 6% installment note to Cuba Bank The note requires annual payments of $8832 first payment occuring on the last day of the fiscal year. the first payment consists of interest of $3,900 and principal

    asked by Nancy
  197. language

    Churches best seats were reserved for members of the gentry.

    asked by Anonymous
  198. Algebra 1

    4+9y-3>9y+6

    asked by Josh
  199. Math

    How do you set this up? Solve the system using substitution: A boat travels 18 miles downstream in 1.5 hrs. It then takes the boat 3 hrs. to travel upstream the same distance. Find the speed of the boat in still water and the speed of the current. Thanks

    asked by Erin
  200. math

    john saw 24 animal at a pet store 14 dogs and 3 hamsters. how many more animals should he see?

    asked by pedro
  201. Calculus

    A solid is formed by adjoining one hemisphere to the top of a cylinder. The total volume of the solid is V (treat as a constant) cubic centimeters. Find the minimum surface area of the solid in terms of V.

    asked by MM
  202. Physics

    A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net radiant power decreases to 13.3 W. What was the net radiant power of the baking dish when it was first removed from the oven?

    asked by Jim
  203. english

    i have to write an essay on why should we have freee colllege education improvement in U.S.A. Why it is problem. Can u please give the reason.

    asked by maria
  204. ENGLISH

    Many people are surprised to learn how __1__ poverty is __2__ America. Today millions live below the poverty line, and the number seems to escalate daily. Judy and Martin Reed exemplify the old saying, “Opposites attract.” A __3__ Judy chooses work

    asked by margaret
  205. priciple of accounting

    What effect does a debit memo in a bank statement have on the Cash account? What effect does a credit memo in a bank statement have on the Cash account? Ms. Sue

    asked by quita
  206. Chemistry 12

    given the reacting system: H2 (G) + I2(G) ---> 2HI(g) Keq= 64 Equal moles of H2, I2, and HI are placed in a 1.0 L container. Use calculations to determine the direction the reaction will proceed in order to reach equilibirum

    asked by Patrick
  207. physics

    A weather vane initially at rest has a moment of inertia of 0.119 kg · m2 about its axis of rotation. A 48.0 g piece of clay is thrown at the vane and sticks to it at a point 21.0 cm from the axis. The initial velocity of the clay is 23.0 m/s, directed

    asked by anthony
  208. Algebra

    While playing marbles, your first opponent won half your marbles plus 4 marbles. You lost half of what was left plus 3 marbles to your second opponent, You lost half of what was then left plus 2 more to the third opponent and your fourth opponent won your

    asked by Britney
  209. Socialstudy

    If u visit a shaker village today what will you see and do ?

    asked by Huma
  210. Physics

    A block of mass m = 2.00 kg is attached to a spring of force constant k = 5.15 102 N/m that lies on a horizontal frictionless surface as shown in the figure below. The block is pulled to a position xi = 5.75 cm to the right of equilibrium and released from

    asked by Ame
  211. math perimeter

    susans garden fence goes around the entire garden.the fence is a quadrilateral.all of the sides are equal in lenth.one side measures 15 cm. what is the perimeter of the garden

    asked by kim
  212. English - ms. sue

    Ms. Sue, my sister write out story here it is. On Monday she looked in her mailbox, although she had no reason to expect a letter so soon. But there it was, a small, square car. She held it in her two hands, testing its weight. It was an invitation to an

    asked by Mohammad
  213. Physics URGENT!!!

    A train sounds its horn as it approaches an intersection. The horn can just be heard at a level of 59 dB by an observer 14 km away. (a) What is the average power generated by the horn? (b) What intensity level of the horns sound is observed by someone

    asked by Anonymous
  214. math

    What does 1/8 + 1/2 + 3/4 equal to?

    asked by Anonymous
  215. Social Studies

    I don't have an atlas and I need help finding the location. I need the nearest city and the country that it's in. Thank you. 1. 31° s, 64° w 2. 13° s,71° w 3. 16° s, 68° w

    asked by Jake
  216. chemistry

    My chem book gives me the following Hess' Law example: Mg + 2HCl --> H2 MgCl2 Delta H1 MgO +2HCl --> H2O +MgCl2 Delta H2 H2 + 1/2 O2 --> H2O Delta H3=-68.3kcal The desired reaction is the formation reaction of MgO as follows: MgS +1/2 O2 --> MgO Delta H

    asked by marcus
  217. physice

    A deep-sea fisherman struggles to bring in a big salmon (see figure below). Find the force each hand must exert on the pole if the tension in the line is 155 N. Neglect the weight of the pole and assume that the force exerted by the left hand is directed

    asked by anthony
  218. Algebra 1

    Can you help me set this up? Suppose you are trying to decide whether to buy ski equipment. Typically it costs $60 day to rent skis and buy a lift ticket. You can buy ski equipment for about $400. A lift ticket alone costs $35 for one day. Find the

    asked by Kate
  219. math

    Find quotient of 3.94/1,000

    asked by Berth
  220. physics

    A particle rotates counterclockwise in a circle of radius 6.5 m with a constant angular speed of 7.4 rad/s. At t = 0, the particle has an x coordinate of 3.3 m and y > 0 . A) Determine the x coordinate of the particle at t = 0.716 s. Answer in units of m (

    asked by michelle
  221. math

    what is three less than 11 times a number is the same as the number decreased by 13. find the number

    asked by zoey
  222. Math

    Marty is a cheerleader. His school colors are red,white,and blue. Marty's uniform consists of a red sweater and a blue sweater/ He has 3 pairs of uniform pants: one red one white and one blue. Draw a diagram showing all the possible ways Marty can combine

    asked by Jerald
  223. physics

    A 1.00 x 10^3 kg sports car accelerates from rest to 25.0 m/s in 7.50 s. What is the average power output of the automobile engine?

    asked by Leslie
  224. chemistry

    In the following reaction, how many grams of ferrous sulfide (FeS) will produce 0.56 grams of iron (III) oxide (Fe2O3)? 4FeS + 7O2 d 2Fe2O3 + 4SO2

    asked by bri
  225. physics PLEASE HELP

    A 3.00-kHz tone is being produced by a speaker with a diameter of 0.185 m. The air temperature changes from 0 to 29° C. Assuming air to be an ideal gas, find the change in the diffraction angle θ.

    asked by Lucy
  226. math

    What is the surface area of a cube with a volume of 81cm3?

    asked by Karen
  227. Math

    Alicia had 2 1/2 yards of ribbon. She used 1/3 of the ribbon on the costume and 25% on a bracelet. How many yards did she use?

    asked by Reese
  228. Math

    3 1/7 - 1 3/7=1 5/7?

    asked by Jerald
  229. Math

    1) what is the length of the diagonal of a square whose sides are 3 inches long. A. 9 inches B. 3 square root 2 inches**** C. 6 inches D. 18 inches 2) which set of measure could be the side lengths of a right triangle? A. 0.9 cm, 1.2 cm, 1.5 cm B. 4 in, 4

    asked by Randy
  230. Math

    Use the substitution method to solve the following system of linear equations: x + y = 6 x = –y + 2 A. There are an infinite number of solutions. B. The solution is (2, 4). C. The solution is (4, 2). D. There is no solution.

    asked by Help!!!!!!!!!!!!!! Fast its urgent Please!!!!!!!!!
  231. Math

    Which of these prices is lower than 5 for 3 dollars?

    asked by HatersHate
  232. Math

    1) Solve equation 3r+5 _____ + 2 = 2r to find the value of r? 2 A. 2 1/7 B. 3 2/3 C. 15 D. 10 2) which is these is a rational number. A. Sq root of 14 B. -sq root of 9 C. -sq root of 34 D. Sq root of 72

    asked by Randy
  233. Physics

    Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car head-on at 20 mph into an

    asked by Frustrated
  234. physics

    A 417 kg pig is standing at the top of a muddy hill on a rainy day. The hill is 100m long with a vertical drop of 37.4 m. If the pig slips and begins to slide down the hill, assuming a negligible amount of friction what will be the pigs speed at the bottom

    asked by Anonymous
  235. Physics

    Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car head-on at 20 mph into an

    asked by Frustrated
  236. math

    Which of the following statements is true? A. all trapezoids are similar B.all isosceles triangles are the same C.all rectangles are similar D.all equilateral triangles are similar

    asked by alfonso
  237. Math

    Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile and 1600 sq ft of vinyl

    asked by Andrew
  238. Math

    Which of these is an irrational number? A.. Sq root of 14 B. -sq root of 9 C. -sq root of 34 D. Sq root of 72

    asked by Help
  239. Math

    2) which set of measure could be the side lengths of a right triangle? A. 0.9 cm, 1.2 cm, 1.5 cm B. 4 in, 4 in, 4 in C. 7 m, 8m, 9m****** D. 2ft, 3ft, 4ft

    asked by Help
  240. possesive nouns

    The sister of Miguel woke him up

    asked by natalie
  241. physics

    In a popular amusement park ride, a rotating cylinder of radius 2.90 meters is set into rotation with a period of 2.28 seconds. The floor then drops away, leaving the riders suspended against the wall in a vertical position.

    asked by asldkf
  242. Math

    Craftsmen install 500 sq ft of ceramic tile and 100 sq ft of vinyl tile in one day. An apprentice installs 100 sq ft of ceramic tile and 200 sq ft of vinyl tile in one day. The firm has a job that requires 2000 sq ft of ceramic tile and 1600 sq ft of vinyl

    asked by Andrew
  243. Math

    A rectangle is 6 cm long and 5 cm wide. When each dimension is increased by x cm, the area is tripled. Find the value of x.

    asked by Casey
  244. MATH

    6. A computer company has two manufacturing plants, one in Rochester and one in Queens. Transporting a computer from Rochester to the retail outlet takes 15 hours and costs $15, while transporting a computer from Queens to the retail outlet takes 20 hours

    asked by RENEE
  245. spanish

    Can someone please proof-read what I have so far on my Spanish essay for finals? Here it is so far: Antes de ver al aeropuerto, es importante confirmer el vuelo. Haces la maleta con ropa para tus vacacion. Cuando llegas el areopuerto, recibes la tareta de

    asked by Emily
  246. western michigan university

    A 30 gram metal at 100 degrees Celsius was dropped into 132 grams of water at 25 degrees Celsius and the final temperature for the metal in water system was 29 degrees Celsius. Calculate the specific heat capacity of the metal if the specific heat capacity

    asked by lorena
  247. western michigan university

    1050 calories of heat from soybean oil was applied to a 250 gram sample of liquid water with an initial temperature of 25 degrees Celsius. Determine (a) the final temperature of water and (b) the change in temperature.

    asked by lorena
  248. physics

    A box slides down a 33.3 ◦ ramp with an acceleration of 1.07 m/s 2 . The acceleration of gravity is 9.8 m/s 2 . Determine the coefficient of kinetic friction between the box and the ramp.

    asked by Anonymous
  249. western michigan university

    2.5grams of pecan nut was turned to heat up 100grams of water at 24 degrees Celsius. The final temperature after all the pecan oil in the nut was completely consumed was 70 degrees Celsius. Calculate the (a) energy released by the 2.5 gram pecan in

    asked by lorena
  250. physics! please help!!

    A particle rotates counterclockwise in a circle of radius 6.5 m with a constant angular speed of 7.4 rad/s. At t = 0, the particle has an x coordinate of 3.3 m and y > 0 . A) Determine the x coordinate of the particle at t = 0.716 s. Answer in units of m (

    asked by michelle
  251. Ideas/ newsworthy

    Hi I'm trying to conduct a video for this new group we have on our campus called the Secular Student Alliance.. it's essentially an atheist group where they meet you share their beliefs.. Any ideas on questions I could ask them about their group that the

    asked by Blazes
  252. College Chemistry

    Is .1M NaH2PO4 a good buffer? Explain.

    asked by Kelsey
  253. Math

    When (5x^6+10x^5+2x^4+19x^3+2x^2+1)^10000 is multiplied out, what is the coefficient of x^4?

    asked by John
  254. Chemistry

    Assume that a particular reaction evolves 230 kJ of heat and that 28 kJ of PV work is gained by the system. What are the values of delta E and delta H for the system? For the surroundings?

    asked by Thalia
  255. Chemistry

    combustion analysis of 63.8 mg of C,H, and O containing compound produced 145.0 mg of CO2 and 59.38 mg of H2O. What is the empirical formula for the compound?

    asked by Emma
  256. Chemistry

    What element is undergoing oxidation (if any) in the following reaction? CH4(g) + 2 O2(g) ¨ CO2(g) + 2 H2O(g)

    asked by Emma
  257. math((PLEASE HELP!))

    How does Pythagorean theorem help to classify other triangles?

    asked by Maryam :)
  258. Chemistry

    Determine the volume of H2S (at 375 K and 1.20 atm) needed to produce 55.0 g of S. Assume that there is excess SO2 present. 2 H2S(g) + SO2(g) ¨ 3 S(s) + 2 H2O(g)

    asked by Emma
  259. Chemistry

    Which of the following compounds can exhibit cis-trans isomerism? A) [Fe(CO)5ONO]2+ B) [Fe(CO)3(NH3)3]3+ C) [Cu(CO)5Br]+ D) [Cr(H2O)4Br2]+ E) [Fe(NH3)6]2+

    asked by Emma
  260. Chemistry

    The complex ion, [Ni(NH3)6]2+, has a maximum absorption near 580 nm. Calculate the crystal field splitting energy (in kJ/mol) for this ion.

    asked by Emma
  261. chemistry

    Choose the bidentate ligand from the substances below. A) cyanide ion B) ammonia C) EDTA D) carbon monoxide E) ethylenediamine

    asked by Emma
  262. Chemistry

    How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.

    asked by Emma
  263. Chemistry

    The temperature rises from 25.00 °C to 29.00 °C in a bomb calorimeter when 3.50 g of sucrose undergoes combustion in a bomb calorimeter. Calculate ÄErxn for the combustion of sucrose in kJ/mol sucrose. The heat capacity of the calorimeter is 4.90 kJ/°C

    asked by Emma
  264. science

    the columbian exchange during the age of discovery

    asked by allrcia
  265. Chemistry

    The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 83.6 mL of 0.12 M LiOH solution. What is the concentration of the H2SO4 solution (in M)?

    asked by Emma
  266. grammar

    What is the simple subject in this sentence Who cares if she's in 3rd grade and I'm just in 1st.

    asked by Angela
  267. calculus

    a woman throws a ball vertically upwards so that 4seconds elapse before it strikes the ground. Determine the maximum height of the ball and the velocity with which the ball was thrown. Assume that the acceleration due to gravity is 10m/s squared and

    asked by Tatjana
  268. math

    The quantity demanded x (in units of a hundred) of the Mikado miniature cameras/week is related to the unit price p (in dollars) by p = −0.2x2 + 80 and the quantity x (in units of a hundred) that the supplier is willing to make available in the market is

    asked by please help!
  269. SCI/275

    Compare and contrast the western world view with the deep ecology world view. Challenge one of the world views presented in Visualizing Environmental Science. Which world view is closest to your own? Why?

    asked by Jose
  270. Math

    Which is the side length of a square with an area of 144 ft squared? 36, 72, 12 or 18 ft.? Is it 12?

    asked by Van
  271. airthmetic progression

    If m, n are natural numbers, m > n, sum of mth and nth term of an increasing AP is 2m and their product is m^2–- n^2, then what is the (m+n)th term of the A.P.?

    asked by simmi
  272. Chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2 . The reaction is second order in AhF. The value of the rate constant is 8.591x10-3 M-1s-1. What is the initial rate of reaction in a reactor

    asked by Please Help Me