Questions Asked on
September 19, 2012

  1. Physics

    During practice, a soccer player kicks a ball, giving it a 32.5 m/s initial speed. It travels the maximum possible distance before landing down field. (a) How much time does the ball spend in the air? (b) How far did the ball travel?

    asked by Janay
  2. Organic Chem

    What is the product of C13H10+CH3O

    asked by Kaila
  3. Math

    I need to make a bar graph using the data set of my last problem. Data Set: 5,7,7,7,11,12,12,13,14,15,16,18

    asked by Jonathan
  4. calculus

    Find c for Rolle's Theorem for f(x) = x3 – 12x on [0,2 3 ]

    asked by JOJO
  5. pre-calculas

    what is the function whose graph is the graph of y=ã+4, but is reflected about the the x-axis. y=

    asked by ladybug
  6. statistics

    Healthy breakfast contains the rating of 77 cereals and the number of grams of sugar contained in each serving. A simple linear regression model considering "sugar" as the explanatory variable and "rating" as the response variable produced the following

    asked by Gee
  7. algebra

    21/2m=11/5

    asked by Anonymous
  8. Math

    Find the perimeter of semicircle d

    asked by Simran kaur
  9. Coporate Finance

    Exotic Cuisines Employee Stock Options As a new graduate, you've taken a management position with Exotic Cuisines, Inc., a restaurant chain that just went public last year. The company's restaurants specialize in exotic main dishes, using ingredients such

    asked by Karen
  10. Math

    solve the ivp dy/dx = 1/(sqrt(1-x^2)) with initial condition y(sqrt(3)/2)=0

    asked by Mark
  11. English

    1. They will come together to the office. 2. They will come to the office together. (Which one is right? Are both right? Which one is commonly used?)

    asked by rfvv
  12. Chemistry

    chloroform (chcl3) has a Hvap of 29.6 kj/mol and its boiling point occurs at 61.7c. the specific heat capacity of liquid chloroform is 0.622 J/gC while that of the gas is 0.714 J/gC. How much energy (in kJ) needs to be removed to condense 250 g of gaseous

    asked by sjhfds
  13. physics

    A fire hose ejects a stream of water at an angle of 31.5 ° above the horizontal. The water leaves the nozzle with a speed of 24.3 m/s. Assuming that the water behaves like a projectile, how far from a building should the fire hose be located to hit the

    asked by ray
  14. chemistry

    Calculate the amount of heat required to heat a 3.7{\rm kg} gold bar from 30^\circ {\rm C} to 61^\circ {\rm C}. Specific heat capacity of gold is 0.128 \rm J/g ^\circ C

    asked by John
  15. Maths

    a cylindrical tin with one end opened has diameter of 440mm and height 50mm.What is the total surface area

    asked by Nathaniel Graham
  16. English

    Volunteering at a day-care center. I have worked at a day-care center. I went there once a month. There were a lot of things to do. I took care of young children. I played with them. I changed their diapers and clothes. I washed the kids, too. I like the

    asked by rfvv
  17. chem

    Potassium nitrate has a lattice energy of -163.8 kcal/ mol and a heat of hydration of -155.5 kcal/ mol . How much potassium nitrate has to dissolve in water to absorb 105kj of heat? Answer in kg.

    asked by michelle
  18. college-physics

    how to write scientific report on physics

    asked by Meenakshi
  19. math

    Yolanda is putting up a fence for her dog in the shape of a square. Each foot of fencing costs $7. If Yolanda is planning to have each side of the fence be 10 feet long, how many feet of fencing will Yolanda need?

    asked by Nina
  20. algebra

    The problem is to factor and solve the following where G = 78 G = X2 - 5X + 6 ___________ 2

    asked by Sarah
  21. chemistry

    Are bond energies (single and multiple bonds) applicable only to gas phase?? For instance, I can use the bond energy data to calculate for enthalpy of reaction for the formation of water: 2 H2(g) + O2(g) -> H2O(g) But I can't directly use it to calculate

    asked by Namie
  22. earth

    a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the earth

    asked by hanu
  23. Finance

    1.Tank Industries Washers expects to pay the following dividends over the next 4 years: $2.50, $3.20, $4.75 and $5.20 respectively (starting at time 1). a.After year 4, the firm expects a constant growth rate of 3%. If investors require 11%, what is the

    asked by nick
  24. maths

    a small can of paint costs $4.a large can of paint costs $7.how much more money does the large can of paint cost?

    asked by fatima jamali
  25. pre calc

    Water is poured into a container in the sape of a right circlar cone with raiud 4t an heigh 16 feet. Express the volue (V) of the water in the cone as a funtio of the heigh (h) of the water. thanks

    asked by Rebekah
  26. Finance

    Suppose an investment offers to double your money in 12 months. What rate of return per quarter are you being offered?

    asked by Jackie Yale
  27. English

    What is the subject complement? I am the baby sitter. baby sitter or sitter

    asked by DE
  28. English

    1. I want to tell him to draw as many cartoons as possible. 2. I want to tell him to draw many cartoons. 3. I want to tell him to draw many comic books. 4. I want to tell him to spend a lot of time drawing pictures. 5. I want to tell him to read as many

    asked by rfvv
  29. Math

    in a quadrilateral ABCD, BC is parallel to AD. AB = BC, 13CD = 20BC and 34AB = 13AD. H is a point on AD such that CH is perpendicular to AD. Prove that 5CH = 3CD

    asked by Jun
  30. Math

    The sum of the reciprocal of 5 and the reciprocal f 7 is the reciprocal of what number?

    asked by Bianca
  31. English Vocabulary

    Is it better to use enmity or enmities in the sentence below? The _________ between teams during the olympics was just for the sake of supporting their teams; there weren't really any hard feelings between the teams or players.

    asked by Layla
  32. Math

    2 circles C1 and C2 meet at the points A and B. Points C and Dare points on the circumferences of C1 and C2 respectively such that angle CAB = angle DAB. CD cuts C1 and C2 at the points Y and X respectively. if Z is the foot of the perpendicular from X to

    asked by Jun
  33. MATH

    Unit rate for 12.64 for 8 packages of juice

    asked by Sammi
  34. Math

    let AB and CD be perpendicular diameters of a circle. two chords AE and AF, which lie in the two different semicircles determined by the diameter AB are cut by the diameter CD in the points X and Y respectively. prove that angle EXF = angle EYF

    asked by Jun
  35. Computers (Programming by Python)

    Problem 1: Multiplication Drill Computers can perform calculations extremely quickly and accurately, but it's often handy to calculate with the computers we carry around inside our heads. Write a program to drill you in multiplication tables. Your program

    asked by Jaizzer
  36. Math

    Two circles C1 and C2 touch externally at A. The tangent to C1 drawn at a point B on the circumference of C1 meets C2 in P and Q so that P is between B and Q. QA is produced and meets C1 at X. Prove that angle XAB = angle PAB.

    asked by Jun
  37. Math

    Let f(x)= px^5 + qx^4 + rx^3 + sx^2 + tx + u be a polynomial such that f(1) = -1 and f(2) = 3 and all the numbers p, q, r, s, t and u are integers. prove that the equation px^5 + qx^4 + rx^3 + sx^2 + tx + u = 0 has no integer roots.

    asked by Megu
  38. mathematics

    vertices(+ or - 7 ,o) , e = 4/3

    asked by athira
  39. Math

    what is some equal fractions to 3/2

    asked by Andre Holloman
  40. Math

    Decide which is the better value (best buy) based on the unit rates $25.00 for concert tickets for 2 people OR 36.00 for concert tickets for 3 people

    asked by Leelah
  41. history

    1-Which of the following statements about literary movements is NOT true? (1 point) A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary

    asked by anna
  42. Math

    A man wants to remove a tall pine tree from his yard. Before he goes to home depot, he needs to know how tall an extension ladder he needs to purchase. He measure the shadow of the tree to be 225 feet long. At the same time he measures the shadow of a 4

    asked by Sara smith
  43. language arts

    Identify the term that correctly identifies the italicized word(s) in each sentence. 7. Listening to the mix CD my brother made for me, I began to hope he would make me another. (1 point) adverbial phrase gerund phrase infinitive phrase participial phrase

    asked by aliyah
  44. soc315 cross cultural

    1. Political Culture/Policy Preferences Think about the war between the United States and Iraq. To what degree, if any, did political culture play a role in the decision to go to war, the public’s support of the war, and how public officials discussed

    asked by keisha
  45. Physics

    Bob jumps from a 2.0 m high table and wants to jump over a 0.85 m radius ball. How fast must Bob move horizontally to not land on the ball? If we use kinematics equations for projectile, the answer is 2.66 m/s; however, with this velocity the person will

    asked by Elaine
  46. geometry

    Fin the volume of a triangular prism with height 16cm, base (a right triangle with sides 7cm, 8cm, and 10cm and the right angle between shorter sides.)

    asked by Jastine
  47. Maths

    Integral of 1/root(2x-x^2)dx

    asked by Sam
  48. Math

    Add the fractions 1/3, 5/6, and 3/8 and reduce your answer to the lowest terms.

    asked by John
  49. math

    Janet took a standardized test that contained 328 questions. She answered 75% of the questions. How many questions did she answer?

    asked by John
  50. Literary Analysis and Composition I

    1. What roles do the adults or older figures play in the lives of the various narrators? Select a figure from each of the four memoirs and write one sentence answering the question for each memoir. Answer: 1. Barrio Boy- 2. A Cub Pilot- 3. No Gumption- 4.

    asked by Lilith
  51. Science

    you have 100ml of water in a beaker. you add 20 ml of table salt. the water level rises to only 105 ml.

    asked by Tee
  52. chem

    Are bond energies (single and multiple bonds) applicable only to gas phase?? For instance, I can use the bond energy data to calculate for enthalpy of reaction for the formation of water: 2 H2(g) + O2(g) -> H2O(g) But I can't directly use it to calculate

    asked by Namie
  53. math

    Determine , apermutation or combination 1.The winner and second and third placed in contest woth 10 finalists . 2.Selecting nine books to check out of the library from a reading list of twelve . 3.Selecting three of fifteen flavours of ice cream . 4.An

    asked by jane
  54. Physics

    A car goes around a curve on a road that is banked at an angle of 33.5 degrees. Even though the road is slick, the car will stay on the road without any friction between its tires and the road when its speed is 22.7 m/s. What is the radius of the curve?

    asked by Claire
  55. physics

    If an 8N force is applied to a wall for 2 minutes and the wall does not move, how much work is done?

    asked by anthony
  56. physics

    find the value of 60jule per minute on a system which has 10cm, 100gm and 1minute as fundamental unit

    asked by bhupendra ghatane
  57. math

    Add the fractions 1/3, 5/6, and 3/8 and reduce your answer to lowest terms.

    asked by John
  58. chemistry help!

    Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5 kcal/mol. How much potassium nitrate has to dissolve in water to absorb 105 kJ of heat?

    asked by student
  59. algebra

    simplify 36/3*4-(-2) ?

    asked by kaitlyn
  60. physics

    How much work does gravity do on a 0.120-kg ball falling from a height of 17.0 m?

    asked by Ashley
  61. science

    if the length of the sting is axactly 9.84cm what is the nearest centimeter and to the nearest tenth of a centimeter

    asked by tammy
  62. marketing

    QUESTION #1 cost analysis with graph office copier has an initial price of $2500. A service contract costs $200 for the first year and increases $50 per year thereafter. It can be shown that the total cost of the copier after n years is given by C(n)= 2500

    asked by Anonymous
  63. Chemistry

    Given the density of copper 8.96g/mL, zinc 7.14g/mL, and brass 8.36g/mL. What is the fraction of copper and zinc in brass (expressed as %)? Please show me step by step how to calculate this. Thank you.

    asked by Anonymous
  64. math

    3x/9=12/17

    asked by bayside
  65. physics

    what is the electric charge force between two chaged particles (q1=+5C and q2=+6C) if the chardes are 2 meters apart?

    asked by cinthia
  66. physics

    A Nordic jumper goes off a ski jump at an angle of 10.0° below the horizontal, traveling 92.0 m horizontally and 47.0 m vertically before landing.; (a) Ignoring friction and aerodynamic effects, calculate the speed needed by the skier on leaving the ramp

    asked by lib
  67. phsyics

    To move a large crate across a rough floor, you push on it with a force F at an angle of 21¨¬ below the horizontal. The mass of the crate is 31 kg, ¥ìs is 0.57, and ¥ìk is 0.45. Find the force necessary to start the crate moving

    asked by nate
  68. chem

    a student paid little attention to the size of his burner flame while heating a 0.979 gram sample of calcium oxalate monohydrate. The final mass of the cooled solid was 0.670 gram. Was the reaction product anhydrous calcium oxalate?

    asked by maxine
  69. Math Stats

    Chris is shopping for CDs and decides to purchase 3 movie soundtracks. The store has 9 different movie sountracks in stock. How many different selections of movie sountracks are possible?

    asked by Chris
  70. algebra 2

    y varies directly with x. When y = 20, x = 50. Find x when y = 36.

    asked by chris
  71. biology

    What are the step by step in finding the answer for this? 4C6H1206 carbon atoms: Hydrogen atoms: Oxygen atoms: Molecules:

    asked by Sally
  72. physics

    At a certain instant a moving object comes to momentary rest. Is it accelerating at that moment?

    asked by princess
  73. physics

    A 52kg teen grabs onto a rope swing. The length of rope between the teen and the pivot point above is 4.5m, and the rope makes an angle of 40o relative to vertical. Calculate his change in potential energy as he swings down and out to the point where the

    asked by taryn
  74. accounting

    Worthington Company issued $1,000,000 face value , six-year, 10% bond on July 1, 2010, when the market rate of interest was 12%. Interest payments are due every July 1, and January 1. Worthington uses a calendar year-end. 1. Prepare the journal entry to

    asked by niecey
  75. phyics

    find the acceleration if the velocity changes from: a) 2m/s to 4m/s in 4s b) 5m/s to 10m/s in 2s c) 100m/s to 120m/s in 5s d) 86m/s to 94m/s in 4s e) 21m/s to 35m/s in 18s thank you!

    asked by nicky
  76. Physics

    A beam of X-rays with a wavelength Ć of 0.179nm is directed at an iron crystal whose planes have a spacing of 0.1013nm. How many diffraction peaks (each arising from a different order n) are possible? I'm really not sure how to go about solving this.

    asked by Bruce
  77. math

    in a class one quarter of students have blonde hair and brown eyes and one third have brown eyes and blonde hair what fraction of the class in total have brown eyes

    asked by sean
  78. Chemistry

    How many moles of H_2 are needed to produce 13.27g of NH_3?

    asked by Chad
  79. Social studies

    Why did mound builders build burial mounds

    asked by Bob
  80. physics

    if a juggernaut decelerates at 9m/s^2, how long will it take him to stop from 45m/s?

    asked by steph
  81. maths

    whhat is the quadratic formula?

    asked by nicky
  82. algebra

    4s=-28

    asked by Anonymous
  83. math

    what is the pattern in the series of numbers 94,26,___,14,10

    asked by Anonymous
  84. physics-batteries

    how does the current through the flashlight using good batteries compare to the current using bad batteries?

    asked by jewel
  85. Math

    Write a4-digit number that has a hundrens digit of 6, a tens digit of 3, and 9 for each of the other digits.

    asked by Harry
  86. physics

    a) a car does an emergency stop from 120000m/s in 3s. what was it's deceleration? b) what was the car's average velocity and what was the stopping distance? thank you

    asked by nicky
  87. All

    Any Websites that have free printable worksheets??

    asked by Unknown
  88. Math

    A pet store has 15 rabbits and 25 cats. How many more cats than rabbits does the store have?

    asked by Harry
  89. English

    1. Copy the famous pictures in museums. 2. Copy the famous pictures of museums. 3. In museums, copy the famous pictures. (Does #1 mean #2 or #3? Is "in museums" an adjective phrase or an adverbial phrase? Thank you.)

    asked by rfvv
  90. governemtn

    In a large country like the United States, _____ is more practical than _____.

    asked by katelynn
  91. Finance

    You are planning to save for retirement over the next 35 years. To do this, you will invest $770 a month in a stock account and $370 a month in a bond account. The return of the stock account is expected to be 9.7 percent, and the bond account will pay 5.7

    asked by Jackie Yale
  92. Physics

    A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.15 s later. (a) Assuming constant acceleration, what was the magnitude of the car's acceleration before impact? _______ m/s2 (b) How fast was

    asked by arcos15
  93. Physics

    A stone is thrown vertically upward from outside a window, with an initial velocity of 24.0 m/s. It moves up, and then down to the ground 420 m below the point where it started. Let `up' be positive. (a) What is the maximum height above the window to which

    asked by arcos15
  94. earth science

    descibe the advanages of plotting data in graph form

    asked by charlie
  95. geometry

    Naomi draws a portion of a figure as shown. She wants to construct a line segment through R that makes the same angle with as .

    asked by mary
  96. English

    e.g. Nasrredin and the Fish How do you pronounce "Nasrredin"?

    asked by rfvv
  97. Science

    Which of the following is an organic molecule? A. Oxygen gas B. Sucrose C. Iron oxide D. Water

    asked by gfhjf
  98. Physics

    A ball is thrown vertically upward and comes back down. Total time of 7.95 s in air. What is its initial velocity? Neglect air resistance.

    asked by Jack Li
  99. statistics

    Suppose a college's SAT scores are normally distributed with mean 1000 and standard deviation 1 for students above 1200. What percentage of students is eligible for scholarships

    asked by iroc
  100. Chemsitry - Van Der Waals

    The constants "a" and "b" in the van der waals equation are "empirical coefficients". What exactly does that mean? Show that the units for "a" and "b" are appropriate for the the Van der Waals equation?

    asked by Indi
  101. Chem-Gases

    Explain how attractive forces between molecules decrease the pressure of a gas?

    asked by Dia B
  102. Chemistry

    identify a chemical reagent that can be used to distinguish CaCl2 (soluable) from CaCO3 (insoluable). What is the distinguishing observation?

    asked by felicia
  103. English

    I am diagramming the sentence: It was excellent from beginning to end. I know the subject is "It", verb "was", subject complement is "excellent" and, I think "from beginning to end" is a prepositional phrase. Am I right or please corrent me.

    asked by Kevin
  104. history

    Explain the GATT principle of nondiscrimination.

    asked by anonymous
  105. science

    Chemical fertilizers stimulate plant growth; but if the concentration is too high, they may damage roots. What precautions concerning chemical fertilizers must a gardener take?

    asked by Anonymous
  106. 3rd grade math

    9,000+600+50+4 in standard form

    asked by yasmine
  107. math

    Average rate of change: h(x)= x^3 -0.5e^x at [0,1]

    asked by Ashley
  108. Math

    The half-life of radioactive strontium-90 is approximately 32 years. In 1961, radioactive strontium-90 was released into the atmosphere during testing of nuclear weapons, and was absorbed into people's bones. How many years does it take until only 8

    asked by Annie
  109. Precalculus

    What is the doubling time of prices which are increasing by 5 percent per year?

    asked by Annie
  110. Math

    What is the doubling time of prices which are increasing by 5 percent per year?

    asked by Annie
  111. math,social studies and heaalth

    I am in middle school and I want to know what my grade point average is. Do you know any websites where I can calculate my grade point average. Thanks.

    asked by Yog
  112. Math

    Explain how to draw a picture to find 3 x 0.9. Grandma needs help for her 5th grade granddaughter!

    asked by Linda
  113. Physics

    Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

    asked by Katie
  114. lanuage arts

    What is the simple subject or predicate in the phrase the big yellow bird?

    asked by Paul
  115. physics

    Secret agent Samantha Bond, 43.00 kg, has just ignited her jet powered skis at the foot of a 10.0 degree slope that rises in height by 50.0 m. The skis have a thrust of 226.0 N. When she gets to the top of the slope, she keeps the skis at 10.0 degrees as

    asked by Anonymous
  116. physical science

    a 1kg object has kinetic energy of 1J when its speed is?

    asked by tracey
  117. physical science

    a weightlifter raises a 70 kg barbell from the floor to a height of 2.2m in 1.2s. What was his average power output during the lift?

    asked by tracey
  118. Physics

    Find the magnitude of the acceleration (in m/s2) for an electron in a uniform electric field with a magnitude of 100 N/C. and Find the time it takes (in sec) for an electron initially at rest in a uniform electric field of 110 N/C to reach a speed of 0.01c

    asked by Katie
  119. physics

    A man walks 3 miles east in 1 hour at a constant velocity, then walks 2 miles east at a constant velocity in 20 minutes, then 2 miles east at a constant velocity in 40 minutes, then rests for 1 hour and then turns around and walks 8 miles west in two

    asked by Confused Student
  120. math

    consider the equation x^2+kx+1=0 a single fair die(dice)is rolled to determine the value of the middle coefficient, k. the value for k is the number of dots on the upper face of the die. what is the probability that the equation will have real, unequal

    asked by dan
  121. Geometry 9th grade

    One of two supplementary angles is 4 times the other. Find the larger angle.

    asked by Cheree
  122. Honors Geometry

    If

    asked by Eric
  123. 3rd grade Math

    Kiara bought 78 stickers .She bought 6 strips of 10 and some singles How many singles did she buy.? Write an equation for each combination of singles and strips.

    asked by Mayette
  124. physical sciencei

    is the work needed to bring a car's speed from 0 to 10 km/h less than, equal to or more then the work needed to bring its speed from 10 to 20 km/h? if the amounts of work are different, what is the ratio between them?

    asked by tracey
  125. physics

    A rowboat crosses a river with a velocity of 4.23 mi/h at an angle 62.5o north of west relative to the water. The river is 0.543 mi wide and carries an eastward current of 0.73 mi/h. How far upstream is the boat when it reaches the opposite shore?

    asked by lib
  126. chemistry

    How many milliliters of a 0.16 M HCl solution are needed to react completely with 4.8 g of zinc to form zinc(II) chloride? Answer in units of mL

    asked by cheri
  127. Math

    What is the area of a square with the same perimeter as a regular hexagon with area 24 square root of 3. Can you please help me wodrk this?

    asked by Mark
  128. history

    why did word war two become worldwide?

    asked by anonymous
  129. pharmacy calculations

    1.a newborn weighs 3,000 g. what is his weight in kilograms? 2.a newborn weighs 3,000g. what is his weight in pounds? 3.a stock bottle contains 2.5 liters of solution how many 2oz bottles can be filled using this solution? 4.you need to give 6mg of a drug.

    asked by cleondra
  130. french

    question: Is this correct? Elle est partie pour Paris hier.

    asked by julie bug
  131. chemistry

    What volume of 0.402MK3PO4 is required to react with 43 mL of 0.507 M MgCl2 according to the equation 2K3PO4 + 3MgCl2 ! Mg3(PO4)2 + 6KCl Answer in units of mL

    asked by cheri
  132. chemistry

    What is the mass in grams of 9.00×10^14 iron atoms, each having a mass of 56 { amu}?

    asked by BRIANNA
  133. chemistry

    Silver nitrate (AgNO3) reacts with sodium chloride as indicated by the equation AgNO3 + NaCl ! AgCl + NaNO3 . How many grams of NaCl would be re- quired to react with 511 mL of 0.38 M AgNO3 solution? Answer in units of grams

    asked by cheri
  134. chemistry

    How many milliliters of a 0.5 molar HCl solution are needed to react completely with 11 grams of zinc according to the following equation? ? HCl + ? Zn ! ? ZnCl2 + ? H2 Answer in units of mL

    asked by cheri
  135. math

    0.21 dividen BY 1.25

    asked by kath
  136. chemistry

    We add excess NaCl solution (58.44 g/mol) to 56 mL of a solution of silver nitrate (AgNO3 169.88 g/mol), to form insoluble solid AgCl. When it has been dried and weighed, the mass of AgCl (143.32 g/mol) is found to be 1.25 grams. What is the molarity of

    asked by cheri
  137. math

    1.3:75 to a percentage 2.1:30 to a percentage 3.4/8 to a ratio 4.20/100 to a ratio 5.solve for x: 1.7:8 ::21:x 2.6:10::x:40

    asked by cleondra
  138. physical science

    a yo-yo is swung in a vertical circle in such a way that its total energy KE and PE is constant. At what point in the circle is this speed maximum? A minumum? why? (b) if the yo-yo has a speed of 3 m/s at the top of the circl, whose radius is 80 cm, what

    asked by tracey
  139. chemistry

    We add excess Na2CrO4 solution to 27.0 mL of a solution of silver nitrate (AgNO3) to form insoluble solid Ag2CrO4. When it has been dried and weighed, the mass of Ag2CrO4 is found to be 0.420 grams. What is the molarity of the AgNO3 solution? Answer in

    asked by cheri
  140. chemistry

    A solution of sodium hydroxide is standard- ized against potassium hydrogen phthalate (KHP, formula weight 204.2 g/mol). From the following data, calculate the molarity of the NaOH solution: mass of KHP 1.744 g; buret reading before titration 0.13 mL;

    asked by cheri
  141. math,social studies and health

    Do you know any other websites where I can calculate my grade point average. Thanks.

    asked by Yog
  142. Chemistry

    I need to calculate the redox potential for the following: 1/2 O2 + 2H+ + 2e- H2O I'm using the formula E = E'_0 + RT\nF ln ([electron acceptor]/[electron donor]) The electron acceptor is H+, so I can use the concentration of that which is indicated by the

    asked by Parker
  143. chemistry

    Listerine mouthwash is 21.6%ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash? (The density of ethanol is 0.789 g/mL.) Answer in units of grams

    asked by cheri
  144. chemistry

    What mass of silver nitrate (AgNO3) is re- quired to prepare 400 g of a 3.50% solution of AgNO3? 1. 14 g 2. 0.00875 g 3. 114.28 g 4. 1400 g

    asked by cheri
  145. chemistry

    In choosing a primary standard we generally choose something that 1. All of these are properties we want in a primary standard. 2. has a low percent purity. 3. None of these are properties we want in a primary standard. 4. has several different possible

    asked by cheri
  146. chemisry

    An unknown amount of water is mixed with 350 mL of a 6 M solution of NaOH solution. A 75 mL sample of the resulting solution is titrated to neutrality with 52.5 mL of 6 M HCl. Calculate the concentration of the di- luted NaOH solution. Answer in units of M

    asked by cheri
  147. Chemistry

    suppose the density of 100.0 mL of some liquid was found to be 0.815 g/mL. What would be the specific gravity of 20.0 mL of this liquid?

    asked by Gabby
  148. chemistry

    What volume of water was added to the 350 mL of NaOH solution? Assume volumes are additive. Answer in units of mL

    asked by cheri
  149. biology

    What is the function of macronucleus and micronucleus in a paramecium?

    asked by MM
  150. physics

    When baseball players throw the ball in from the outfield, they sometimes allow it to take one bounce before it reaches the infield on the theory that the ball arrives sooner that way. Suppose the angle at which a bounced ball leaves the ground is the same

    asked by lib
  151. chemistry

    If you analyzed each of the substances NaBr, KOH, CrPO4, Pb(OH)2, RbCl, LiNO3 by mixing them with water in a beaker, which substances would be most likely to fall to the bottom of the beaker? 1. KOH and Pb(OH)2 2. CrPO4 and LiNO3 3. NaBr 4. RbCl and LiNO3

    asked by cheri
  152. chemistry

    A variety of ions including Na+, K+, NH4 +, Pb2+, Fe2+, NO3 −, Cl−, Br−, S2−, and CO3 2− are mixed in a beaker of water. If you analyzed the precipitates, which substances would you expect to find? 1. PbS and FeCO3 2. FeCl2 and KCl 3. NaBr and

    asked by cheri
  153. chemistry

    Consider the following reaction CaCl2(aq) + 2Ag2SO4(aq) ! CaSO4(?) + 2AgCl(?) .Which of the following statements is true? 1. Both CaSO4 and AgCl will precipitate from solution. 2. Neither CaSO4 nor AgCl will precipitate from solution. 3. CaSO4 will

    asked by cheri
  154. chemistry

    Which of the following aqueous solutions should form a precipitate with aqueous Fe(NO3)3? 1. KNO3 2. KCl 3. K2SO4 4. KOH

    asked by cheri
  155. chemistry

    Which of the following aqueous solutions should NOT form a precipitate with aque- ous Ba(NO3)2? 1. K3PO4 2. K2SO4 3. K2CO3 4. KOH

    asked by cheri
  156. chemistry

    Although soluble barium compounds are toxic, suspensions of insoluble barium sul- fate are routinely swallowed for upper gas- trointestinal X-ray studies. Why is barium carbonate not used? 1. Stomachs contain HCl and all carbonates dissolve in acid.2.

    asked by cheri
  157. chemistry

    Which one of the following substances is LEAST soluble in water? 1. BaCO3 2. KSCN 3. Na3PO4 4. RbOH 5. LiBr

    asked by cheri
  158. physical science

    a 70 kg man and 50 kg woman are in a boat when its motor fails. the man dives into the water with a horizontal speed of 3 m/s in order to swim ashore. if he changes his mind, can he swim back to the boat if his swimming speed is 1 m/s? If not, can the

    asked by tracey
  159. chemistry

    Which response includes all of the following LiOH, KOH, Ni(OH)2, Mg(OH)2, Ca(OH)2 that are insoluble bases, and no others? 1. Mg(OH)2 2. LiOH, Mg(OH)2, Ca(OH)2 3. Mg(OH)2, Ca(OH)2 4. Ni(OH)2, Mg(OH)2 5. LiOH, Ni(OH)2

    asked by cheri
  160. chemistry

    Which of the species KClO2, NH4Br, HNO2, PbS is/are insoluble in water? 1. NH4Br and NH3 2. KClO3 3. PbS 4. HNO2 5. All of these

    asked by cheri
  161. chemistry

    Suppose that you wanted to be sure that a metal ion, any metal ion, would dissolve in water. What salt of the metal ion compound would you choose? 1. the hydroxide (OH−) salt of the metal ion 2. the carbonate (CO2− 3 ) salt of the metal ion 3. the

    asked by cheri
  162. chemistry

    An ion can be removed from an aqueous solu- tion by 1. the formation of a gas that escapes. 2. formation of a precipitate. 3. the formation of what is essentially a nonelectrolyte. 4. All of these

    asked by cheri
  163. chemistry

    HBr is mixed with water. Which is the best description of what you would expect to find in the solution? 1. Br1−, OH1−, and water molecules 2. HBr molecules and water molecules 3. H2Br+, OH1−, and water molecules 4. H3O+, Br1−, and water molecules

    asked by cheri
  164. chemistry

    HCN is mixed with water. Which is the best description of what you would expect to find in the solution? 1. CN+, OH−, and water molecules 2. HCN molecules and water molecules 3. H2CN+, OH−, and water molecules 4. HCN molecules, H3O+, CN1−, and water

    asked by cheri
  165. Physics

    Two objects are connected by a light string that passes over a frictionless pulley. The incline is frictionless, m1 = 2.00 kg, m2 = 4.00 kg, and theta= 60.0°. (b) Find the accelerations of the objects. Magnitude (c) Find the tension in the string. N (d)

    asked by Avery
  166. math

    what is the simple interest on a $14,500 loan at 9% interest for 5 years?

    asked by John
  167. Physics

    A man pushes a lawn mower on a level lawn with a force of 200N it 40% of this force is directed downward how much woek is done by the man in pushing the mower 6.0m Q. It the man in the above question expended 60 W of power in pushing the mower 6.0m, how

    asked by Isis
  168. 6th Grammar

    What is simple predicate; Brianna needed kindling for a fire. AND A fire needs oxygen.

    asked by Anonymous
  169. Math

    The average giraffe is 18 feet tall. What expression show the height of the giraffe?

    asked by Shion
  170. Physics

    Imagine a very large nonconducting plate that has a uniform surface charge density σ =1 μC/m2; it also shows a point charge Q = -3 μC at distance d = 0.3 m from the plate. Both are fixed in place. We choose the origin of an x-axis at Q. At what positive

    asked by Katie
  171. English

    1. These are rice cake. 2. These are rice cakes. 3. This is rice cake. 4. This is a rice cake. (Which ones are right?)

    asked by rfvv
  172. Math

    How to make 1-100 using only 4 5s

    asked by Ms. Gardener
  173. math

    Farmer Ben has only ducks and cows. He can't remember how many each he has, but he really doesn't need to remember. He does know that he has 22 animals, which is his age. He also remembers that those animals have a total of 56 legs, which is his father's

    asked by Lanay
  174. pre calculus

    How do you solve c + 70 + 12c = 196 - 5c

    asked by elise
  175. math

    442 mi in 8.5 hr.... now name the units in each rate then write a unit rate.

    asked by Carly
  176. chemistry

    Do impurities raise or lower the refractive index of a liquid? Please explain, I can't find it anywhere.

    asked by Lauren
  177. Math

    The Hubbard bubba bubble gum tape is 6 feet long . How many 2 and one forth inch peices can the tape be cut into?

    asked by Taiya
  178. Calculus - Series

    Determine if the following sequence: { (n + 1)^2 / (n^2 + 1), is ascending, descending and find the lower bound b OR the upper bound B. So I found that the sequence is descending changing the n's for x's and using the derivative. But now I'm not sure on

    asked by Paul
  179. Finance

    Your client is 40 years old, and she wants to begin saving for retirement, with the first payment to come one year from now. She can save $7,500 per year, and you advise her to invest it in securities which you expect to provide an average annual return of

    asked by Ty
  180. PHYSICS!

    A diver leaves a 3m board on a trajectory that takes her 2.5m above the board and then into the water a horizontal distance of 2.9m from the end of the board. At what speed did she leave the board? At what angle did she leave the board?

    asked by Helpless
  181. Organic Chemistry

    cyclohexane=1.4264 toluene=1.4967 at 20˚C Mixture=1.4563 at 20˚C Assuming that the relationship between refractive index and concentration is linear, calculate the composition of the mixture. What do I do? Formula?

    asked by Lauren
  182. English

    Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina The brisk breeze caused the sheets on the line to ____

    asked by Jerald
  183. math

    Draw and label line BN. Draw and label point T on it

    asked by lenny
  184. Geometry

    1.If two different lines are perpendicular to the same plane, they are: a. Collinear b. Coplanar c. Congruent d. Consecutive I think the answer is B, is that correct? Also, this: 2. Express 3 radical 75 plus radical 27 all over3 in radical form. I

    asked by Squid
  185. Biology 9th grade

    Describle the following cellular structures and functions?

    asked by haley
  186. Math

    A 51 meter rope is cut into 2 pieces so that one piece is 6 meters longer than four times the shorter piece. Find the lengths of both pieces.

    asked by Kimberli
  187. Pre-Algebra 7th grade.

    I have prealgebra with order of operations with a line dividor with a fraction line/divider. It says: 94-6 ____ 66(divided by) 6

    asked by Caleb
  188. math

    90 volts are applied to a circuit with 3 resistors resistor 1=20 ohms resistor 2=40 ohms and resistor 3=60 ohms how much power will be dissipated by resistor 1

    asked by chad
  189. Science

    While rearranging a dorm room, a student does 378 J of work in moving a desk 2.8 m. What was the magnitude of the applied horizontal force?

    asked by KeKe
  190. physics

    A 3800 kg car travels around an unbanked corner at the recommended speed of 65 km/hr. the radius of curvature is 80 m. a) what is the force that the road exerts on the car to keep it in motion around the corner? b) what force would the road need to exert

    asked by Delia
  191. social studies

    Ranchos callampas and favelas are all slum areas in

    asked by ben
  192. Algebra

    Complete the square to form a perfect square trinomial. X^2+4x+____ How do I do this?

    asked by Sk8rNerd
  193. math

    how many centimeters are in one millimeter? Thanks!

    asked by i luv 1 direction
  194. math

    Graduate student Luke currently has $400 in cash. At the beginning of months 1, 2, 3, and 4, Luke receives revenues from his research assignment, after which he pays bills (see Table). Any money left over is to be invested. If invested for one month, Luke

    asked by Jessica
  195. math

    complete each equation.. 1.5mi/min=________ mi/hr $1.92 per lb=________ per oz $18,500 salary per year=______ per week 42 hr/week=________ hr/day

    asked by Carly
  196. 6th grade math

    I had to convert 2500 millimeters to centimeters.I think it's 250,please check. Thanks!

    asked by luv history
  197. Science

    A man pushes a lawn mower on a level lawn with a force of 203 N. If 44% of the force is directed horizontally, how much work is done by the man in pushing the mower 5.4 m?

    asked by KeKe
  198. math

    What's the formula for finding the area of a parallelogram? Thanks!

    asked by luv history
  199. algebra 2

    a school cafeteria sells milk at 25 cents per carton and salads at 45 cents each. one week the total sales for these items were $132.50. How many salads were sold that week?

    asked by dayshia
  200. English

    Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Although I may hurt your feelings my conscience _____ me

    asked by Jerald
  201. Physics

    A speedy tortoise can run at 0.09 m/s, and a hare can run 20 times as fast. In a race, they start at the same time, but the hare stops to rest for 2.4 min, so the tortoise wins by a shell (20 cm). How long does the race take? Answer in units of s What is

    asked by Joe
  202. social studies

    what is the mayas imformation?

    asked by rhiannon barbosa
  203. math

    find the mystery number, it is a 4 digit odd number, all the digits are different, none of the digits are 0-9, the tens digit is twice the ones digit, and the hundreds digit is twice th tens digit. the thousands digit is one less than the hundreds digit?

    asked by Evelyn
  204. math

    You are shopping for single-use cameras to hand out at a party. The daylight cameras cost $2.75 and the flash cameras cost $4.25. you must buy exactly 20 cameras and you want to spend between $65 and $75, inclusive. Write and solve a compound inequality

    asked by LeAnn
  205. math

    Can someone please help me get started... I am completely lost Graduate student Luke currently has $400 in cash. At the beginning of months 1, 2, 3, and 4, Luke receives revenues from his research assignment, after which he pays bills (see Table). Any

    asked by Jessica
  206. LAW 302 Business Law for Managers

    How do security agreements assist in debtor-creditor agreements? When should they be invalidated?

    asked by Timica
  207. Human Service

    what is legislative task and over all role in shaping public policy

    asked by Bertina
  208. algebra

    Use the information in the table. write and solve an equation that shows how many lions are in the preserve in all. then solve for the variable. Table: Age Number Cubs 18 Adolescents 14 Mature 2 Mature 7

    asked by michelle
  209. math

    how do you answer this qestion 3 plus 11multiplyed(70-175)divided by 7

    asked by tj
  210. english lit

    Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped 2)

    asked by Farah
  211. 4th grade math

    Find the mystery number. It is a 4 digit odd number. All the digits are different. None of the digits are 0 or 9. The tens digit is twice the ones digit, and the hundreds digit is twice the tens digit. The thousands digit is one less than the hundreds

    asked by Denise
  212. Math

    Write each ratio as a fraction in simplistic form. a class has 6 boys and 15 girls what is the ratio of boys to girls? Help? Tell me what you did. Thanks(:

    asked by Savanna
  213. Math

    1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

    asked by Madison
  214. Math

    I am a 2- digit number . The sum of my digits is 12 . My tens digit is 4 more than my ones digit. What number am I ?

    asked by Hailey
  215. English

    Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina You talk so fast and low that you are going to be

    asked by Jerald
  216. algerba 1

    you have 15 coins,mickels and dimes. d= the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

    asked by Anonymous
  217. Grammar

    Which of the following sentences displays an INCORRECT use of interjections? A.No, I have not told Laura about the surprise! B.Great! I will make a reservation for the restaurant right away. C.Well, now that I think about it, maybe we should choose another

    asked by Beth
  218. geometry

    EARTH COMPLETES ONE FULL ROTATION EACH DAY MAKING THE SUN APPEAR TO RISE AND SET. IF THE SUN PASSES DIRECTLY OVER HEAD, BY HOW MANY DEGREES DOES ITS POSITION IN THE SKY CHANGE EVERY HOUR?

    asked by EMILY
  219. ECON 4346

    4-The three fundamental economic questions of what, how, and for whom: a-exist because of scarcity. b-are much more serious in a socialist system. c-are not serious in a capitalistic system. d-are not relevant in the industrialized world of today. 5-When

    asked by Randy
  220. Please HELP

    Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped 2)

    asked by Farah
  221. linear programming

    I am not even sure how to set up the objective function... Help! Graduate student Luke currently has $400 in cash. At the beginning of months 1, 2, 3, and 4, Luke receives revenues from his research assignment, after which he pays bills (see Table). Any

    asked by Jessica
  222. Math ASAP

    1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

    asked by Madison
  223. algebra 1 I need help immediately

    you have 15 coins, nickels and dimes. d=the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

    asked by Anonymous
  224. Math

    Write each ratio as a fraction in simple form.

    asked by Savanna
  225. english

    Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina Since Tom is both smart and disinterested I think he is

    asked by Jerald
  226. math

    There is a blue ribbon, a yellow ribbon, and a green ribbon. susan did now wear the yellow ribbon or the green ribbon. Jean did not wear the gren ribbon. Clare wore either the blue ribbon or the green ribbon. what color ribbon did each girl wear?

    asked by mythreyee
  227. help immeditaly

    you have 15 coins, nickels and dimes. d=the number of dimes. write a simplified expression in terms of d for the total amount cents that you have. show work and explain

    asked by Anonymous
  228. 4th Grade Math

    I have an 8 in the ten thousands place, My hundreds digit is greater then my ten thousands digit, My ones digit is the number of right angles in a rectangle, my tens digit is the difference between thirteen and my ten thousands digit, my value is less that

    asked by Mikaela
  229. Science

    Batteries change ____ energy into _____ energy Chemical and electric Converting the suns energy into electricity does not work if it is ____ time or there is ___ weather night and bad? The suns energy can be turned into electrical energy or ___ energy

    asked by Lance
  230. Easy math

    Write each ratio as a fraction in simple form. 12 kittens to 15 puppies

    asked by Savanna
  231. Math

    1.-80%(-2) (=,) 120/3 2.-1750%70 (=,) -1008/48 3.240/-80 (=,) -150/50 4.675/-45 (=,) 865/-51 5.-3755%x= -15 6.22=x%(-34) X=-748 7.x%(-17)=-35 8.-680 % x =53 X=-13

    asked by An
  232. Chemistry

    What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 80.0 min? Assume first order kinetics. Use the integrated rate law for a first order reaction. Remember at 75 percent reaction, 25

    asked by Bryan
  233. english LIT

    HELP Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped

    asked by Farah
  234. us history

    why do geographers divide areas into regions

    asked by juames
  235. social studies

    what country is made up of more than 7000 islands

    asked by Anonymous
  236. math

    Write each ratio as a fraction in simple form 12 kites to 15 bikes

    asked by br.
  237. math

    if greg eats 3 red jelly beans and 6 yellow ones how many yellow were there originally? the ratio is 4:5

    asked by therese
  238. Chemistry

    What is the value of the rate constant for a reaction in which 75.0 percent of the compound in a given sample decomposes in 80.0 min? Assume first order kinetics. Use the integrated rate law for a first order reaction. Remember at 75 percent reaction, 25

    asked by Bryan
  239. social studies

    what country is made up of more than 7000 islands

    asked by Anonymous
  240. Physics

    A bullet of 10g enters a target at 100 ms-1 and leaves it 0.01 s later. Calculate: i. The rate of change of momentum of the bullet ii. The resistance offered by the target iii. The loss of kinetic energy of the bullet iv. The deceleration of the bullet v.

    asked by Emily
  241. AP Chemistry

    When 0.055 moles of lead(II) nitrate are dissolved in enough water to make 803 mililiters of solution, what is the molar concentration of nitrate ions? Answer in units of M.

    asked by Lacey
  242. AP Chemistry

    How many grams of sucrose (C12H22O11) must be dissolved in 60 g water to make a solution in which the mole fraction of sucrose is 0.4? Answer in units of g.

    asked by Matt
  243. AP Chemistry

    What volume of 3.16 M HNO3 is required to prepare 524 mL of a 0.2 M HNO3 solution? Answer in units of mL.

    asked by Matt
  244. AP Chemistry

    Sulfuric acid (H2SO4) is prepared commercially from elemental sulfur using the contact process. In a typical sequence of reactions, the sulfur is first burned: S + O2 → SO2 , then it is converted to SO3 using a catalyst: 2 SO2 + O2 → 2 SO3 . The

    asked by CJ
  245. AP Chemistry

    For the reaction ? N2H4+? O2 →? N2+? H2O , what is the maximum amount of N2 (28.0134 g/mol) which could be formed from 14.75 g of N2H4 (32.0452 g/mol) and 4.31 g of O2 (31.9988 g/mol)? Answer in units of g

    asked by Lacey
  246. geometry

    if the length of each edge in a cube is increased by the same percent and the result was a cube that had 25% more volume than it originally had, by what percentage were the edges increased

    asked by emily
  247. Physics

    A hiker drops a heavy stone over a cliff and hears it strike the cliff base 2.8 seconds after dropping it. If the velocity of sound is 335 m/s, how high is the cliff?

    asked by John
  248. AP Chemistry

    For the reaction ? ZnS + ? O2 →? ZnO+? SO2 , what is the maximum amount of ZnO which could be formed from 14.06 g of ZnS and 5.56 mol of O2? Answer in units of g

    asked by CJ
  249. algebra 2

    list all solutions if x^(4)+x^(3)-11x^(2)+9x+20=0 and if one of the roots is x=2-i

    asked by emily
  250. physics

    At 2:15 pm a passenger looks over at the speedometer and notices that they are going 55 miles per hour DUE WEST. at 2:37 pm this very passenger hears a siren and looks over the speedometer again; she notices that they are going 83 mph, DUE WEST. What was

    asked by Jessica
  251. Clean Energy

    What are some types of clean enregy and what are they? I have geothermal - heat from the Earth, hydropower - water power, wind power, biomass (I don't know what that is), and solar power - sun power. I would really like some help.

    asked by Jibbie
  252. AP Chemistry

    For the reaction ? C6H6 + ? O2 ↽⇀? CO2 + ? H2O a maximum of ? moles of CO2 could be formed from 9 mol of C6H6 and 2.81 mol of O2. Answer in units of mol

    asked by Matt
  253. algebra 2

    solve for x: (exact answers) 5^(2x+1)-26(5^x)+5=0

    asked by emily
  254. social studies

    18-(-18)

    asked by Anonymous
  255. AP Chemistry

    For the reaction ? Al + ? CuSO4 ↽⇀? Al2(SO4)3+? Cu a maximum of how many moles of Al2(SO4)3 could be formed from 5.95 mol of Al and 1.31 mol of CuSO4? Answer in units of mol.

    asked by Matt
  256. math

    18(-18)

    asked by Anonymous
  257. AP Chemistry

    In the reaction below, 16 g of H2S with excess O2 produced 8 g of sulfur. ? H2S + ? O2 → ? S + ? H2O . What is the percent yield of sulfur? Answer in units of %

    asked by CJ
  258. AP Chemistry

    14 carat gold has a purity of 58.3%. How many moles of gold are in 172 grams of 14 carat gold? Answer in units of moles

    asked by Lacey
  259. AP Chemistry

    If a metal ore contains 21.4% pure metal, how many pounds of pure metal can be obtained from 59 pounds of metal ore? Answer in units of pounds

    asked by Lacey
  260. Math (Need help FAST!)

    Determine if two ratios are equivalent Complete using < > = 5/20 [ ] 4/10 How did YOU do it?

    asked by Savanna
  261. Physics

    During a baseball game, a batter hits a high pop- up. If the ball remains in the air for 6.0s, how high does it rise? Hint: calculate the height using the second half of the trajectory

    asked by Isabella
  262. math

    An elephant eats about 500 pounds of grass and leaves every day. There are 2 Africa elephants and 3 Asian elephants living in the City Zoo. How many pounds of grass and leaves do the zookeeper need to oreder each week to feed all the elephants?

    asked by renee
  263. Social Studies 8R - HW Qs. Help! (FAST!)

    The north lost more soldiers in the Civil War than the South did. Why was it easier for the north to recover from the war?

    asked by Lauren
  264. Physics

    An airplane is flying horizontally with a constant velocity of 160 m/s at an altitude of 5100 m when it releases a package. a. How long does it take for the package to reach the ground? (Ignore air resistance.) b. What is the distance between the airplane

    asked by JP
  265. Science 8R - HW Help!

    Science 8R HW - Using the steps of the Scientific Method solve a problem that you may have (for example, 1. How can I get my little brother to stop eating my homework) I can't think of one.... please help! any ideas or suggestions???

    asked by Lauren
  266. math

    some kangaroos can cover 30 feet in a singke jump! if a kangaroo could jump like that 150 times in a row, how much farther would it need to go to cover a mile? (1 mile = 5,280 feet)

    asked by sharon
  267. English

    helb back by ___ winds the plane arrived two h ours late adverse? For a long time I thought he was a good and sincere person but I finally saw that he was no more than a(n) constrain You and Lucy will never settle your quarrel unless you _____ each other

    asked by Jerald
  268. GEOMETRY

    What is the distance between points (3, 1) and (0, –5)? Round to the nearest tenth.

    asked by mary
  269. CIS 312 Information systems for Managers

    What can a company do to prevent incidences of theft or harm to its company's resources including data and humans?

    asked by Timica
  270. physics

    A chain of ocean waves crests at 35m apart , 15 miles/hr. What is the frequency of the waves?

    asked by Terri
  271. social studies

    Were the western plains Indians or the Pacific Northwest Indians more dependent on one natural resource?

    asked by bella 15
  272. math

    Determine if two ratios are equivalent Complete using < > = 3/5 [ ] 18 out of 30 can someone help me learn this?

    asked by Savanna
  273. Math

    A camp cook found a recipe for scones that makes 18 scones. The recipe calls for 3 cups of buttermilk in the dough plus 2 fluid ounces of buttermilk to brush on top of the scones.The cook is out of buttermilk.How many quart containers of buttermilk does

    asked by Sarah
  274. math

    a rope is cut into two pieces. one has a length of 37 feet. if the other piece has a length of x what was the total lengh of rope in feet before it was cut?

    asked by kim
  275. math

    3k(-xy+-5)

    asked by dianne
  276. Math

    Determine if two ratios are equivalent Complete using < > = 2:4 [ ] 7:36

    asked by Savanna
  277. Science

    Xylem dries up and dies what is the effect

    asked by Valerie
  278. Algebra 1

    During a sale, a music store is selling all drum kits for 20 percent off. Preferred customers also receive an additional fifteen percent off. Write a composite function to represent the final cost of a kit that originally cost c dollars. Find the cost of a

    asked by Anonymous
  279. Chemistry

    A mixture of ethane and ethene occupied 35.5 L at 1.000 bar and 405 K. This mixture reacted completely with 110.3 g of O2 to produce CO2 and H2O. What was the composition of the original mixture? Assume ideal gas behavior Im pretty sure i use dalton's law

    asked by Drew
  280. Science

    Humans have increased their food supply by using fertilizers.

    asked by Michelle
  281. Math

    2t-4; t=6

    asked by Tete
  282. Science

    What concerns you have about the overall safety of the food you eat?

    asked by Michelle
  283. Algebra 2

    Absolute Value Equations Will someone please check to see if I am doing this correct? 1.|7x+2|=10 x= (8/7) or (-12/7) 2.|3x-5|=-1 I got "no solution" because "d" cannot be negative. 3.|x^2-2x-16|=8 x= 6,-4 or x=4,-2 4.|3x-2|=7 x= 3 or (-5/3)

    asked by Caroline
  284. chemistry

    how many silver coins weighing 26g each would take to provide 5 moles of silver

    asked by mari
  285. Chemistry

    Calculate the frequency of radiation with a wavelength of 1.27 × 104 °A (angstroms). Answer in units of s^−1. I got 8.34080793e-25. Is that right?

    asked by Peter
  286. math

    the sum is 19.my hundrends digit is 4 less than 7. my thousands digit is the sum of 3 and 1. the other two digit are the same number. what four digit number am I?

    asked by rawand
  287. math

    If you have 30 white lego bricks, 42 red lego bricks, and 45 black lego bricks and you pull them out of a bag one at a time until one is left, what is the probability the last brick will be black

    asked by Madison
  288. Math

    The distance to fly direct from Detroit to Los Angeles is about 1,960 miles.The flight takes 4 hours 53 minutes.What is the plane's average speed in feet per second to the nearest foot per second?

    asked by Sarah
  289. Chemistry

    A mixture of iodine solid and sodium chloride ( Hint: iodine is not soluble in water) What method(s) can I use to separate the mixtures? Filtration Evaporation Centrifugation Decant Magnetic attraction Paper chromatography Distillation

    asked by Anonymous
  290. algebra

    Determine whether y varies directly with x. If so find the constant of variation k and write the equation. x y 7 11 8 13 9 15 10 17 Can someone please help me and explain

    asked by brandon
  291. Physics

    A child’s toy consists of plastic attached to a spring. The spring is compressed against the floor a distance of 1.48 cm, and the toy is released. The acceleration of gravity is 9.8 m/s2 . If the toy has a mass of 109 g and rises to a maximum height of

    asked by George
  292. Physics

    When a 58 gram tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?

    asked by Matoro
  293. physics

    Two cars both travel along a straight road Northbound. At t = 0, the car 1 is 190.6 m further north than car 2. Also at t = 0, car 1 is travelling at 24.3 m/s, and car 2 is travelling at 5.7 m/s. Car 1 is slowing down with an acceleration of magnitude 0.28

    asked by Ty
  294. Math

    how could you use point I to estimate the midpoint of each side of the rectangle?

    asked by Josh
  295. Chemistry

    Ethyl butyrate is an artificial fruit flavor commonly used in the food industry for such flavors as orange and pineapple. It can be produced by the reaction of butanoic acid with ethanol in the presence of an acid catalyst. i) Given 8.45g of butanoic acid

    asked by grangeH
  296. History

    When did Purtains arrive in America?

    asked by Darcy
  297. math

    reason which is greater the greatest whole number with 05 digits or the least whole number with 06 digits

    asked by gabriel
  298. government

    campaign spending tends to be gratly more important for republicans or democrates or challengers and non incumbents raer than incumbents

    asked by Anonymous
  299. Dressmaking

    a houndstooth jacket would work well with which of the following bodylines?

    asked by edd
  300. calc 3

    Find all partial derivatives? v = (xy)/(x-y) vxx= vxy= vyx= vyy=

    asked by Becky
  301. ap us history

    how can i put all these events and make it to a essay -engishman rights -taxes -independence -boston tea party -tea act -whiterights

    asked by angel
  302. Physics

    What is the direction of the particle’s velocity at time t = 3.4 s? Please specify this direction as an angle (between −180 ◦ and +180 ◦ ) from the x axis. Answer in units of ◦

    asked by Caan
  303. history

    2 big important facts about the 13 amendment.

    asked by bri
  304. calculus

    Find the derivative of the function using the definition of derivative. g(t)= 9/sqrt(t) g'(t)= state the domain of the function and the domain of the derivative (use interval notation)

    asked by maura urgent!!
  305. Physics

    A stone is thrown vertically upward from outside a window, with an initial velocity of 24.0 m/s. It moves up, and then down to the ground 420 m below the point where it started. Let `up' be positive. (a) What is the maximum height above the window to which

    asked by arcos15
  306. Physics

    A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.15 s later. (a) Assuming constant acceleration, what was the magnitude of the car's acceleration before impact? _______ m/s2 (b) How fast was

    asked by arcos15
  307. university of the west indies

    The pH of a 0.164 M aqueous solution of dimethylamine is 11.98. Write the ionization equation, calculate the values of Kb and pKb and comment on strength of the base....

    asked by geeta
  308. History

    Thank you Ms. Sue for answering my question Would you please do this to this is the las one! Describe 3 causes where purtains showed their intolerance for people with other beliefs?

    asked by Darcy
  309. English

    I am writing my essays and I wrote them but i not know how to start the beginnings of them. this on movie smoke signals. i am writing on themes, but i cant start intro like "in the film .. because someone else be doing that for movie review, so i not know

    asked by Mohammad
  310. algebra

    Susan had a $10 coupon for the purchase of any item. She bought a coat that was on sale for half its original price. After using the coupon, Susan paid $125 for the coat before taxes. What was the original price of the coat?

    asked by Taylor
  311. Physics

    Someone in a car going past you at the speed of 23 m/s drops a small rock from a height of 1.9 m. How far from the point of the drop will the rock hit the ground? The acceleration due to gravity is 9.8 m/s 2 . Answer in units of m

    asked by Caan
  312. ap us history

    how much more was the conflict between great Britain and her North american colonies economic origin rather than rooted in political and social controversies and differences.

    asked by oscar
  313. english please help y none is helping

    Please help me what this quotes mean then I have to write WHAT I think about it. i already get eight of them but idont get rest of them. 1) Or I will become engulfed with all I did or I did not do, with what should have been and what cannot be helped 2)

    asked by Fara
  314. HISTORY

    Which of the following phrases does NOT appear in the Declaration of Independence? ( A life, liberty, and the pursuit of happiness B all men are created equal C these Colonies are, and of right ought D to be, free and independent states we the people of

    asked by anna
  315. chemistry

    6.04g

    asked by Anonymous
  316. ECON

    A bank vice-president declared that the probability that the bank’s funds were being embezzled was 0.70 and that the probability that an embezzlement would be discovered by the bank examiner was 0.90. Given that the bank examiner does not find the

    asked by Nina
  317. ECON 2

    False signals. A procedure has been designed that will detect 99% of the defective assemblies in a manufacturing process. However, the probability that the procedure will declare a good assembly defective is 0.05. If 2% of all assemblies are defective,

    asked by Nina
  318. ECON 3

    A manufacturer of television sets trims sets in either black or grey and uses either a walnut or a maple stain. A consumer survey showed that 20% of consumers wanted a black trim with a walnut stain and that half of all consumers wanted a black trim or a

    asked by Nina
  319. physics

    A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

    asked by Anonymous
  320. physics

    A barge is hauled along a straight-line section of canal by two horses harnessed to tow ropes and walking along the tow paths on either side of the canal. Each horse pulls with a force of 540 N at an angle of 12° with the centerline of the canal. What is

    asked by Becky
  321. math

    i mande 440 at a yard sell in 10 20 i need to have 5 more 10 than 20

    asked by chris
  322. SUBJECT

    Which of the following statements about literary movements is NOT true? A A literary movement is a period that shares a particular set of ideas, concerns, or characteristics. B Ideas, concerns, or characteristics may be shared by literary movements. C

    asked by anna
  323. HISTORY

    William Bradford wrote Of Plymouth Plantation and A "To My Dear and Loving Wife." B The Day of Doom. C The Voyage of the Mayflower. D The Mayflower Compact. I THINK ITS C OR D BUT IM PRETTY CONFUSED. PLEASE HELP , IF I WERE TO PICK ID PICK C

    asked by anna
  324. Math

    Solve each system of equations using substitution. 1.) x+3y=-4 y+x=0 2.) y=2x+3 5x-y=-3 3.) 2y=-4x 4x+2=-11

    asked by Jordaine
  325. physics

    A rowboat crosses a river with a velocity of 3.55 mi/h at an angle 62.5o north of west relative to the water. The river is 0.850 mi wide and carries an eastward current of 0.57 mi/h. How far upstream is the boat when it reaches the opposite shore?

    asked by Anonymous
  326. math 5th

    number puzzles You say this number when you start at 0 and count by 15. You say this number when you start at 0 and count by 25. This number is less than 200. This number is even.

    asked by jj
  327. AlgebraII

    How do you get the answer for this equation a+2b+(14a-5b)-[6a+6b-(a+4)]

    asked by Andrea
  328. physics

    A diver jumps off a diving board with a speed of 25m/s he returns to the water after 3s. At the top of his dive describe his velocity and his acceleration?

    asked by Brandon
  329. physics

    An apple falls from a tree and hits the ground 9.93 m below. With what speed will it hit the ground? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

    asked by argelia
  330. physics

    A flowerpot falls from a window sill 28.4 m above the sidewalk. What is the velocity of the flowerpot when it strikes the ground? The acceleration of gravity is 9.81 m/s2 . Answer in units of m/s

    asked by argelia
  331. sugarhill

    i need help with this problem 6/13 devided by 4/39

    asked by ash
  332. physics

    A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

    asked by Anonymous
  333. physics

    A car is parked on a cliff overlooking the ocean on an incline that makes an angle of 24.0° below the horizontal. The negligent driver leaves the car in neutral, and the emergency brakes are defective. The car rolls from rest down the incline with a

    asked by Anonymous
  334. physics 1

    A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?

    asked by sergio
  335. accounting

    what affect can the incorrect intentional or unintentional posting, journalizing and reporting of financial data have on a company, an accountant or a company's stakeholders?

    asked by Anonymous
  336. history

    Which of the following authors wrote in the same genre? Anne Bradstreet William Bradford Olaudah Equiano Thomas Jefferson

    asked by anna
  337. Chemistry

    The bromine content of the ocean is about 65 grams of bromine per million grams of sea water. How many cubic meters of ocean must be processed to recover 1.0 pounds of bromine if the density of sea water is 1.0 x 103 kg/m3?

    asked by anna
  338. history

    Thomas Jefferson and Thomas Paine shared a similar purpose for writing. What was their purpose? (1 point) to express and reflect to persuade to inform to invite

    asked by anna
  339. physics 1

    A car is accelerating, from rest, at a rate of 6.74 m/s2. After 4.35 seconds, how far has the car gone?

    asked by sergio
  340. history

    The statement below represents which genre from the early American and Colonial period? I want to explain origins of the natural world and its processes. (1 point) the poetry of Anne Bradstreet the oral tradition of Native Americans the journals of William

    asked by anna
  341. Math

    geometry- On the coordinate plane, draw a rectangle ABCD with vertices at A (1,4), B(5,4), C(5,1) and D (1,1). Then graph and describe the new rectangle formed when you subtact 3 from each coordinate of the vertices in rectangle ABCD.

    asked by Witty
  342. math

    can you help ; i need to write and solve for each situation. check the solution. school: between 7:30am and 8:00am the number of students in a school increased by 73. there were 152 students in the school at 8:00 am. How many students were in school at

    asked by marko
  343. calculus

    find the constants a and b so that the function is continuous on the entire real line. F(x)= 3, x≤-1 ax+b, -1

    asked by fernando
  344. calculus

    find the constants a and b so that the function is continuous on the entire real line. F(x)= 3, x≤-1 ax+b, -1

    asked by fernando
  345. early childhood

    how can Brain Development Research Influence Early Childhood Curriculum

    asked by shan
  346. Calculus - Series2

    Find the sum of each of the convergent series: b) 5 - 1/3 + 20/9 - 40/27 + 80/81 ..... so first we need to find the general term, and I'm not sure of my answer, but I got: ((-1)^2 * 2!)/3^n and a0 = 5 From here on I'm lost.

    asked by Paul
  347. Physics

    Thinking Physic-ly: On some toll roads, the ticket is stamped with the time you enter the toll road and the time you exit. How can the toll taker determine if you were speeding?

    asked by Tyler
  348. Intermediate algebra

    if a positive number is increased by 70% and then the result is decreased by 50% what is the overall percentage change

    asked by Anonymous
  349. government

    civil rights act was aimed chiefly at

    asked by ty
  350. imp4

    Pow 3 "a sticky gum" revisited Gumballs are 1 penny each. The kids each want a different color. what is the maximum spent with each generalization. create formulas for the following. Generalize the number of children. Generalize the number of gum ball each

    asked by Anonymous
  351. Physics

    A bullet of 10g enters a target at 100 ms-1 and leaves it 0.01 s later. Calculate: i. The rate of change of momentum of the bullet ii. The resistance offered by the target iii. The loss of kinetic energy of the bullet iv. The deceleration of the bullet v.

    asked by Emily
  352. PHYSICS

    Two point charges are placed on the x axis as follows: Charge q1= 4.20 is located at x= 0.185 , and charge q2= 4.80 is at x= -0.280 . What are the magnitude and direction of the net force exerted by these two charges on a negative point charge A =

    asked by Anonymous
  353. Math

    Employer receive a base pay of $900.00 plus a sales commission of 6% of sale sum of base pay and commission deduction 18% of gross pay gross pay minus deduction My answer : base pay $900.00 + $54.00 = $954.00 -$171.72= net pay $782.28

    asked by Asia
  354. statistics

    Professor Gensemer is canoeing down the Colorado River, trying to reach camp by nightfall. To get that far, she must paddle successfully through 6 sections of white water rapids. For each section, if she reaches that sections there is a probability .1 of

    asked by John