Questions Asked on
October 3, 2011

  1. physics

    A father racing his son has 1/3 the kinetic energy of the son, who has 1/3 the mass of the father. The father speeds up by 1.4 m/s and then has the same kinetic energy as the son. What are the original speeds of (a) the father and (b) the son?

    asked by nan
  2. math

    wHY DID MISS MAFFET NEED A ROAD MAP

    asked by may lou
  3. Math

    A triangle and trapezoid share a 15 inch base and a height of 10 inches. For what values of b is the area of the trapezoid less than twice the area of the triangle?

    asked by Jessica
  4. statistics

    Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

    asked by Jenifer
  5. Calculus

    A ball is thrown straight down from the top of a 220-foot building with an initial velocity of -22 feet per second. What is its velocity after 3 seconds? What is its velocity after falling 108 feet?

    asked by Susana
  6. AP Chemistry

    What mass of silver nitrate (AgNO3) is required to prepare 400 g of a 3.50% solution of AgNO3

    asked by Yolanda
  7. chemistry

    A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.642 g. Write an equation for the reaction and, assuming that all the chlorate

    asked by Mohammed
  8. geometry

    Two poles, 60 feet tall and 20 feet tall, stand on opposite sides of a field. The poles are 80 feet apart. Support cables are placed from the top of each pole to the bottom of the opposite pole. How far above the ground is the intersection of the cables.

    asked by kay
  9. Math

    11. A rocket is fired upward from some initial height above the ground. Its height h in feet above the ground t seconds after it is fired is given by h = -16t2 + 48t +448. (i) What is its initial height? __________ ft. (ii) What is its maximum height?

    asked by Alyson
  10. physics

    a 2.00 m tall basketball player is standing on the floor 10 m from the basket. if she shoots the ball at a 40 degree angle with the horizontal at what initial speed mjust he throw the basketball so that it goes through the hoop without striking the

    asked by mark
  11. Calculus

    The annual inventory cost C for a manufacturer is C=(1,008,000/Q)+6.3Q where Q is the order size when the inventory is replenished. Find the change in annual cost when Q is increased from 350 to 351, and compare this with the instantaneous rate of change

    asked by Susana
  12. chemistry

    CH4 + 2O2 = CO2 + 2H2O Starting with 13.6 g of CH4, calculate the mass in grams of CO2 produced if there is enough O2 gas to react with all of the CH4

    asked by Kayla
  13. physics help

    in a local diner a customer slides an empty coffee cup down the counter for a refill. the cup slides off the counter and strikes the floor at a distance d from the base of the counter. if the height of the counter is h. a) find an expression for the time t

    asked by john
  14. algebra

    How can you divide 64 into 2 groups ti get a ratio of 3 to 5?

    asked by Ana
  15. Chemistry

    A)What mass of carbon dioxide is produced from the complete combustion of 7.00×10−3 g of methane? B)What mass of oxygen is needed for the complete combustion of 7.00×10−3 g of methane?

    asked by Hannah
  16. Chemistry

    The Vitamin C content claimed on the product label is that 1 cup of juice contains 130% of the recommended daily allowance (RDA) for vitamin C? Based on the product label claimed, how many milliliters of this juice must an adult drink to obtain the

    asked by Steph
  17. Physics

    A particle moves along a circular path over a horizontal xy coordinate system, at constant speed. At time t1 = 4.80 s, it is at point (4.40 m, 6.20 m) with velocity (3.70 m/s) and acceleration in the positive x direction. At time t2 = 11.0 s, it has

    asked by Nelson
  18. physics

    stephanie serves a volleyball from a height of .8m and gives it an initial velocity of 7.6m/s straight up. how high will it go? how long will it take to reach maximum height?

    asked by evan
  19. chemistry

    How many grams of PbCO3 will dissolve when exactly 5.0 L of 1.25 M H is added to 6.0 g of PbCO3? When the equation is PbCO3(s) + 2H(+)(aq) = Pb(2+)(aq) + H2O(l) + CO2(g)

    asked by Anonymous
  20. CHEM 102

    What is the pH of a solution that is 0.62M H2SO4(aq) and 1.7M HCOOH (formic acid).

    asked by Calvin
  21. physics

    A 747 jetliner lands and begins to slow to a stop as it moves along the runway. The mass is 3.1 105 kg, its speed is 25.5 m/s, and the net braking force is 4.24 105 N.(a) What is its speed 7.45 s later?How far has it traveled in this time?

    asked by john
  22. pre-calculus

    How do I prove that sinx/sinx+cosx=tanx/1+tanx

    asked by tatiana
  23. English

    What is the predicate in this sentence? The wiskers on my kitten twitch when I rub its back.

    asked by Isaac
  24. Physics

    A plane weighing 220 kN (25 tons) lands on an aircraft carrier. The plane is moving horizontally at 67 m/s (150 mi/h) when its tail hook grabs hold of the arresting cables. The cables bring the plane to a stop in a distance of 84 m. (a) How much work is

    asked by John
  25. chemistry

    The total number of atoms in 0.111 mol of FeCO3(PH3)2...?

    asked by Linda
  26. economics

    An increase in personal income tax rates will cause a(n)

    asked by amanda
  27. Angular Acceleration

    A child pushes a merry go-round from rest to a final angular speed of 0.4 rev/s with constant angular acceleration. In doing so, the child pushes the merry-go-round 1.1 revolutions. What is the angular acceleration of the merry go-round? I got .0727 but

    asked by Shereen
  28. math

    A farmer with 2000 meters of fencing wants to enclose a rectangular plot that borders on a straight highway. If the farmer does not fence the side along the highway, what is the largest area that can be enclosed?

    asked by lulu
  29. geometry

    Suppose points A, B, and C have the coordinates given below. Find y such that C is on the perpendicular bisector of segment AB. A(−1, 4), B(7, −2), C(9, y)

    asked by Dana
  30. chemistry

    predict the outcome of mixing aqueous solutions of the following reactions. write the ionic equations of each. mercury (ll) nitrate + ammonium iodide manganese (ll) chloride + sodium sulfide lead (ll) nitrate + sodium sulfate barium nitrate + lithium

    asked by TROUBLED
  31. pre-calculus

    in Triangle abc, tanA=3/4, tan B=1, and a=10. find b in simplest radical form.

    asked by tatiana
  32. Chemistry

    How many moles of H3PO4 are there in 35.0 mL of 0.60 M H3PO4 solution?

    asked by Anonymous
  33. MATH

    a box contains 20 slips of papers, numbered 1-20. A slip of paper is drawn from the box and the number is noted. Find the probability that it is a positive integer less than 21.

    asked by Katie
  34. Chemistry

    Calculate the grams of KHP needed to react with 25.2 ml of 0.10M KOH if the reaction is? KOH+KHP -----> K2P + H2O

    asked by Dante
  35. math

    construct-angle-f-so-that-m-angle-f-equals-2-m-angle-c

    asked by Chris
  36. physics

    The Earth rotates on its own axis once per day (24.0h). What is the tangential speed of the summit of Mt. Kilimanjaro (elevation 5895 m above sea level), which is located approximately on the equator, due to rotation of the Earth? The equatorial radius of

    asked by John
  37. algebra

    The horsepower (hp) that a shaft can safety transmit varies jointly with its speed (in revolutions per minute, or rpm) and the cube of the diameter. If a shaft of a certain material 2 in in diameter can transmit 36 hp at 75 rpm, what diameter must the

    asked by Wen
  38. Spanish Lit (De la Educación Moral)

    Ok so I'm trying to analyze the essay De la educación moral by Gabino Barreda but I'm stuck on these two paragraphs. Thus far in the essay I've found that he's trying to prove that religion itself is poitnless and irrelavent because all the rules and what

    asked by Cassie
  39. chemistry

    Lactic acid is a weak monoprotic acid. If a 0.10 M solution of it has a pH of 2.44, what is the dissociation constant (Ka) for lactic acid. I got 1.3x10^-4? Is that right?

    asked by person
  40. Chemistry II

    A storage tank containing 1.6x10^4 Liters of water is found to be contaminated with nitric acid and therefore has a pH of 3.78. Calculate the volume of 0.050 M sodium hydroxide required to be added to the tank in order to neutralize (pH = 7.0) the

    asked by Wendell
  41. CHEM 102

    A particular household ammonia solution (d=0.97 g/mL) is 6.8% NH3 by mass. How many mililiters of this solution should be diluted with water to produce 625mL of a solution with pH = 11.65.

    asked by Calvin
  42. geometry

    The bases of a trapezoid are 38 and 17 respectively. The angles at the extremities of the larger base are 57 degrees and 45 degrees. find the two legs.

    asked by echus
  43. math

    if a set of six books is placed randomly on a shelf, what is the probability that they will be arranged in either correct or reverse order?

    asked by Katie
  44. physics

    A  golfer  wants  to  drive  a  ball  a  distance  of  310  yards.    If  the  4-­‐wood  launches  the  ball  at  an  angle  at  15°   above  the  horizontal,  and  assuming  that  the  drive  is  over  level  ground

    asked by Anonymous
  45. Chemistry

    Your bedroom is 18 ft long and 15 ft wide, and the distance from floor to ceiling is 8 ft 6 in. You need to know the volume of the room in metric units for some scientific calculations. (a). What is the room’s volume in cubic meters? (b). What is the

    asked by Nicole
  46. Math

    How ca Steve add 48 + 34 by making a ten? What is the sum?

    asked by Dyna
  47. Physics: Three Identical Masses

    Three identical masses of 640 each are placed on the x axis. One mass is at = -100 , one is at the origin, and one is at = 400 . What is the magnitude of the net gravitational force on the mass at the origin due to the other two masses? Take the

    asked by Erik
  48. To Sam: Penn Foster answers

    Please do not post any more answers. Jiskha is not a repository for any exam answers. In addition, we have no idea what the questions are. If you want to post a couple of your exam questions along with your answers, we'll be glad to check them for you.

    asked by Ms. Sue
  49. science

    Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.

    asked by jenny
  50. calculus

    The radius of a spherical balloon is increasing at a rate of 2 centimeters per minute. How fast is the volume changing when the radius is 8 centimeters? Note: The volume of a sphere is given by 4(pi)r^3

    asked by Anonymous
  51. Psychology

    For these hypothesis, I need to know... Determine what research goal is required determine whether you can use the experimental method decide how you would define your variables(using operational definitions) (1) A pregnant woman's diet affects the birth

    asked by Kelli
  52. Check please science

    Cells are to tissues as organs are to 1 ORGAN SYSTEM 2 CELLS 3 GENES 4 ORGANELLES IS THE ANSWER 1 ORGAN SYSTEM Which of statements about cells is not true? 1. One or more cells make up all living organisms 2 cells carry on the basic life functions of

    asked by GAspar
  53. Fibonacci Numbers

    This is not a test question, but I did not know what the appropriate topic for my question is. If I used the terms 2, 3, 4, 8 consecutive terms of the Fibonacci sequence. "a" is the first and fourth terms and "b" is twice the product of the second and

    asked by Jennifer
  54. Chemistry, Need Help!!

    a)How many grams of H2 are needed to produce 14.27 g of NH3? b)How many molecules (not moles) of NH3 are produced from 1.57×10−4 g of H2 ?

    asked by Hannah
  55. Math

    Assume that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more? Why or why not?

    asked by Katty
  56. math stats

    you draw from a deck. if you get a red card you win nothing. if you get a spade you win $5. for any club you win $10 plus an extra $20 for the ace of clubs. A. create a probability model for the amount you win. B. Find the expected amount you will win. C.

    asked by jessica
  57. Physics

    The two cubes in the drawing are made from the same material. The radiant energy per second emitted by the small cube is 3.70 J/s. What is the energy emitted per second by the larger one?

    asked by Steven
  58. Chemistry Help please!

    What mass of Na2CO3 is required to prepare 607.0 mL of 0.250 M solution? Use a molar mass with at least as many significant figures as the data given. ____g?

    asked by MBH
  59. chemistry

    sodium borohydride (NaBH4) is used industrially in many organic syntheses. one way to prepare it is by reacting sodium hydride with gaseous diborone. Assuming an 86.8% yield,how many grams of NaBH4 can be prepared by reacting 7.98g of sodium hydride and

    asked by hlp
  60. Budgeting your money

    George's car insurance comes due every six month. What is the best way to budget for this expense? A.He should wait for the premium notices to arrive and pay them from his current income. B.He should put the entire amount of the premium in a savings

    asked by ciara
  61. chemistry

    How many grams of NAC2H3O2 must be dissolve in enough water to prepare 250.0 mL of a solution with a pH= 9.200? Molar mass of NaC2H3O2 ia 82.03 g/mol. Ka for C2H3O2H is 1.8x10^-5

    asked by PLEASE HELP!
  62. Science

    In an experiment, Tom dissolved 2.125 g of NaOH to make 200.0 mL of aqeous solution. What is the NaOH molarity?

    asked by Anonymous
  63. math

    lopez spent 1/3 of his vacation money for travel and 2/5 of his vacation money for lodging. He spent $1100 for travel and lodging. What is the total amount of money he spent on his vacation?

    asked by kelly
  64. math

    Anthony plans to ride 175 km on his bike and Samanta plans to ride 250km. They both plan to complete their journeys in a whole number of days. How many kilometres could each person travel if they both ride the same number of kilometres each day. How many

    asked by Anonymous
  65. Chemistry

    Calculate the concentration, in molarity, of a solution prepared by adding 9 mL of water to 1 mL of 0.1 M HCl solution. If 2.0 mL of 0.010 M NaOH is mixed with enough water to make the total volume 8 mL, what is the molarity of the resulting solution?

    asked by Nico
  66. physics

    Charge of uniform surface density (0.2 nC/m2) is distributed over the entire xy plane. Determine the magnitude of the electric field at any point having z = 2 m.

    asked by jenny
  67. Chemistry

    How do we know that the moles of ascorbic acid originally present in the juice is equal to the moles of I2 that we added when the color change occurred?

    asked by Anonymous
  68. History

    In the development of the Roman Empire, the Romans treated citizenship as A. something to be shared with conquered people. B. belonging only to native Romans. C. a benefit worthy only of peoples who had freely joined them. D. meaningless because the Roman

    asked by katelynn(pennfoster student)
  69. Math

    To add 32 + 56, Juanita first added 30 + 50. What steps does she still need to do to find the sum? What is Juanita's sum?

    asked by Eudy
  70. physics

    Two gears A and B are in contact. The radius of gear A is twice that of gear B. (a) when A’s angular velocity 6.00 Hz counter clockwise, what is B’s angular velocity? (b) If A’s radius to the tip of the teeth is 10.0 cm what is the linear speed of a

    asked by John
  71. Physics

    A car goes around a curve on a road that is banked at an angle of 32.5 . 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 19.0 . What is the radius of the curve?

    asked by Erik
  72. Chemistry

    Write a balanced molecular equation for aqueous nitric acid and aqueous ammonia. Express your answer as a balanced chemical equation. Identify all of the phases in your answer.

    asked by Anonymous
  73. Psychology

    In Pavlov's classical conditioning experiments, the neutral stimulus that comes to elicit a conditioned reponse is known as the: A) unconditioned stimulus B) conditioned stimulus C) reinforced stimulus D) unreinforced stimulus I believe the answer is A or

    asked by Tisha
  74. chemistry

    Potassium cyanide (KCN) reacts with acids to produce the poisonous hydrogen cyanide gas, HCN, according to the reaction below: KCN(aq) + HCl(aq) = HCN(g) + KCl(aq) If a sample of 0.653 g of KCN is placed in an excess of HCl, how much HCN, in grams, is

    asked by Kara
  75. physics

    A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. The time it takes for the ball to fall halfway to the ground is 1.4 s. Find the time it takes for the ball to fall from rest all the way to the ground.

    asked by Anonymous
  76. social studies

    Which of the following ways of measuring explicit memory usually produces the best results? A)Relearning B) Recall C)Recognition D) Referral I chose B. Am I right?

    asked by missy
  77. math

    Which statement describes the similarity between sketches and drawings? A Both sketches and drawings are made freehand. B Both sketches and drawings do not require a compass C: Both sketches and drawings do not need drawing tools like a pencil. D. Both

    asked by Help Me
  78. english essay, please help me to correct.

    can you help to correct my answer and english grammar. thank you so much. question below: 1. How does money is importance in our society right now? answer: The importance of money in our society right is more than anything else because everything is needed

    asked by jessie
  79. chemistry

    If a 200-mm test tube is substituted for the gas buret in this experiment(It is a Aluminum Analysis ) ,indicate the additional measurements you will make .

    asked by lamis
  80. math

    3b-9-8b=11

    asked by Ricky
  81. Physics

    A football is punted up into the air and it lands 5 seconds later. How high did the did the football reach it's highest point and when does it reach this height?

    asked by Rachael
  82. Early Childhood Education

    Which of these is a form of unintentional socialization a)requesting that children say please and thank you b)calculating the answer to a homework problem for a child with a learning disability c)teaching children to used a computer d)being kind to a slow

    asked by Aloma
  83. Pre-Calc

    Can you show me how to find the rectangular equation of r=2costheta + 3 sin theta All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you

    asked by Leah
  84. Algebra

    An open box is to be constructed from a rectangular sheet of tin 3 meters wide by cutting out a 1-meter square from each corner and folding up the sides. The volume of the box is to be 2 cubic meters. What is the length of the tin rectangle?

    asked by Sejul
  85. physics

    The speed of sound in air at 20 degrees C is 343m/s. This corresponds to a speed of ____mi/hr.

    asked by Ajmber
  86. algebra

    How can you divide 64 into 2 groups to get a ratio of 3 to 5?

    asked by Ana
  87. Chemistry

    A solution of 114 mL of 0.160 molecules KOH is mixed with a solution of 300 mL of 0.250 molecules NiSO4. a. write a balanced equation for the reaction that occurs. identify all phases in answer

    asked by Rheagan
  88. world history

    (This homework question was removed due to a copyright claim submitted by K12 Inc.)

    asked by H.R
  89. geography

    What capital city is near the equator and 80 degrees W of longitude? My answer is --- Lima, Peru. Am I right?

    asked by Reed
  90. math

    kathy bicycles 6 km h faster than javier. in the same time it takes javier to bicycle 33km, kathy can bicycle 45 km. how fast does each bicyclist travel?

    asked by raeneshia
  91. physics

    John is driving at 25m/s. When he brakes, he accelerates at the rate of -5.0m/s^2. How much time did it take him to stop? How far does it take him to stop?

    asked by John
  92. Pre-Calculus

    Can you show me how to find the rectangular equation: r=2cos(theta) + 3 sin (theta) All I need is an example to work off I was absent today from Pre-Calc and I have homework to do and no explanation with them-Please help with this one Thank you

    asked by Leah
  93. budgeting your money

    Which one of the following statements best describes a budget "blind spot"? A : To little oney was set aside to cover an expense B. This is an expense the person overlooked or did not account for when setting up the budget. c. This is an item that requires

    asked by ciara
  94. math

    Ashton broke apart a number into 30 + 7. What number did he start with?

    asked by kate
  95. Pre-Algebra

    Make a table with all the whole number pairs of length and width values that give an area of 24 square meters.

    asked by Dylan
  96. Math

    Martin and Patrick have a model of an airplane which they want to duplicate. Martin uses a string and ruler to make approximate measurements of lengths to duplicate the picture. Patrick uses a pencil and paper and duplicates the picture without the help of

    asked by Help me
  97. Importrant

    ii.) I’ve missed more than 9000 shots in my career. I’ve lost almost 300 games. 26 times, I’ve been trusted to take the game winning shot and missed. I’ve failed over and over and over again in my life. And that is why I succeed.” –

    asked by help
  98. physics

    A car accelerates from rest at a constant rate of 2.2 m/s2 for 6.9 s. How far does the car travel in this time?

    asked by Steven
  99. Social Studies please help

    why did many native born americans in the late 1800 were in favor of restricting immigration?

    asked by Karan
  100. Government US

    This is not a homework.. but I was just wondering... was the US government forced to start imperialism ? Was it because of the cold war US was dragged into the worldly affairs?

    asked by HM
  101. Math help please

    1.) 4(2-a)^2-81 2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.) 9(y-1)^2-25

    asked by Marina
  102. Psychology

    Studies that have overcome methodological problems in examining intelligence scores for African- americans as compared to people of Anlo-Saxon descent revealed: a. that the test results were useless becxause racial prejudice invalidated them b. thst

    asked by bj
  103. Chemistry

    If C + CO2 Co, when equilibirum is established at 1000 K, the total pressure in the system is 4.70 atm. If Kp= 1.72, what are the partial pressures of CO and CO2?

    asked by Layne
  104. human srvices

    human services 322 assignmnets

    asked by Anonymous
  105. chem

    what is the concentration of a solution with 5 grams of HBr dissolved in 2 liters of water?

    asked by rick
  106. statistics

    According to the National Transportation Safety Board, 10% of all major automobile crashes result in serious injury to at least one person involved in the crash. The Georgia Department of Transportation reports that there are approximately 20 major

    asked by vee-please help, asap
  107. chemistry

    There is a ball with a mass of 1000 lbs. It's turned into wire with a diameter of 3.12 x 10^-1 How long is the wire? This is my crazy chemistry teacher's idea of a test...and I don't even think there's a solution. HELP ME

    asked by Molly
  108. chemistry

    a room is 18ft long, 15ft wide and from floor to ceiling is 8ft6inches. what is the rooms volume in cubic meters? i have 6.498716 is this correct? what is the mass of air in the room in kilograms assuming the density of the air is 1.2g/l and the room is

    asked by cheryl
  109. Calculus

    Find k such that the line is tangent to the graph of the function. Function: f(x)=kã(x) Line: y=x+4

    asked by Susana
  110. Physics

    What force must be exerted on block A in order for block b not to fall. The coefficient of static friction between block A and B is 0.55, and the horizontal surface is frictionless.

    asked by Kayla
  111. math

    convert 15% into a fraction

    asked by felix
  112. american history

    . The Niagara Movement, headed by _______, sought equal rights for blacks. * A. William Lloyd Garrison B. Booker T. Washington C. W. E. B. Du Bois D. William E. Walling

    asked by Anonymous
  113. Calculus

    is there a number a such that the lim x->2 6x^2+ax+a+57/x^+x-6 exists? if so find the value of a and the limit.

    asked by Ashley
  114. English

    Thank you very much for teaching me both the British English and the American English alternative. By the way, do you say "What time do we land?" Is the use of the simple present correct in this sentence? I just want to make sure the following two

    asked by Henry2
  115. math

    how can estimating help you add two- digit numbers?

    asked by shawn
  116. geometry

    Angles BAC and Angle CAD are supplementary angles. Find the measures of each angle if the measure of Angle BAC is 10x + 16 and the measure of Angle CAD is 7x + 8. Round angle measures to the nearest tenth

    asked by marley
  117. biology

    what is activation energy?

    asked by jessica
  118. English

    Can some help me with a topic to write a personal narrative?

    asked by Mario
  119. IMPORTANT!!!! Psychology

    For these hypothesis, I need to know... Determine what research goal is required determine whether you can use the experimental method decide how you would define your variables(using operational definitions) (1) A pregnant woman's diet affects the birth

    asked by Kelli
  120. Math

    Jason makes two pictures. Picture 1 is made with the help of a pencil and picture 2 is made with the help of a pencil, compass, and protractor Which statement best compares the two Answer: A:Picture 1 is a drawing because it does not use measuring tools

    asked by Please Help Me
  121. Spanish

    How would I say I prefer this papagayo because it is prettier than those papagayos? Would it be: Yo prefiero este papagayo porque es mas bonito que estos papagayos.

    asked by Jamie
  122. college general chem

    If 15.0 of is dissolved in enough water to form 270 of solution, what is the molarity of the solution? How many milliliters of 4.45×10−2 contain 4.05 of solute

    asked by ronie
  123. Physics

    Tarzan, who weighs 917 N, swings from a vine through the jungle. How much work is done by the tension in the vine as he drops through a vertical distance of 3.85 m? Simply calculating; W=(917N)*(3.85m)= 3530.45 J Isn't working, I'm not sure how to apply

    asked by Help
  124. probabilities

    The proportion of red marbels in a large jar of red and black marbels is 0.4 and the percentage of damaged red and black marbels is 0.7. What is the probability of selecting randomly a black and damaged marbel? If you randomly select three marbels, what is

    asked by pete
  125. calc

    how do i find the derivative of 16^(sinx)

    asked by terra
  126. math

    How do I solve this problem? 7(q + 2) + 3(2q -1) = -2

    asked by rosalind
  127. Math

    1.) 4(2-a)^2-81 2.) -(x-y)^3 3.)3x^2-27(2-x)^2 4.) 9(y-1)^2-25

    asked by Heather
  128. Calculus

    Explain how lim x->1 ((x^2)-1)/(sqrt(2x+2)-2) = 4

    asked by Shayna
  129. English-Please Help Due @ 8a.m.

    Can you please check for any errors. And corrent the errors for me. It is due tomorrow morning. Also, let me know if you think this is a descriptive essay. If you think i need to add something else let me know. My Dear Mother She is only about five feet

    asked by Angela
  130. math

    What is the standard notation for 3 to the 3rd power

    asked by Marissa
  131. calculus

    f(x)=8/(x^2+x+2) Set up an equation, which when solved will give the points where the tangent line has y-intercept 5.

    asked by Shelly
  132. math

    5,25,50,10 what are the next 3 numbers?

    asked by liv
  133. Computer Science / Ehtics in Information Technolog

    Consider a scenario. Morgan has developed a software tool and given it free of charge to Shelly for review. The tool is fully functional, and Shelly sells it to other people for money. What are the ethical issues involved in this scenario and how should

    asked by Diane
  134. us history

    Im doing a crossword and im stuck on the last one. the topic is immigration and urbanization. 1. neighborhoods on the outskirts of a city..?

    asked by sara
  135. Physics

    One boat tows another boat by means of a tow line, which is under a constant tension of 495 N. The boats move at a constant speed of 4.75 m/s. How much work is done by the tension in 1.10 min? Not sure how to apply the work-energy theorem. I assume

    asked by Help
  136. math

    In how many ways can the letters of the word EIGHT be arranged using only four of the letters at a time?

    asked by Katie
  137. calculus

    ind an equation of the tangent line to the curve at the given point. y = sin 6x + sin2 6x, (0, 0)

    asked by Patricia
  138. chemistry

    In crystallization of sugar, the best seed slurry is obtainable by wet grinding sugar in some medium (an alcohol) like isopropyl alcohol. Why is isopropyl alcohol is used?

    asked by Namie
  139. statistics

    There are approximately 27 class days for Applied Statistics this semester. If you miss 3 classes, approximately what percent of the course have you missed?

    asked by Mary
  140. English

    Does what we watch and experience in popular culture affect the way our families behave? Explain your rationale.

    asked by Sasha
  141. Math

    2a - 30 +a2b= I don't get this at all.....

    asked by Bryce
  142. chemistry

    Calculate the molarity of each ion in 0.300 M Na2SO4. Enter a zero for an ion that doesn't occur in the compound. ______ M Na1+ ______ 2 M S2- ______ 3 M O 2- ______ M SO42-

    asked by MBH
  143. Budgeting your money

    jamal currently earns 20,000 a year in gross wages, On january 1. he is due to receive a 2% COLA. What will his gross income be after the COLA takes effect? A.$19,600 B.$20,100 C.$20,400 D.$24,000 I got C.

    asked by ciara
  144. physics

    A ship leaves the island of Guam and sails a distance 295 at an angle 35.0 north of west. How far must it sail so that its resultant displacement will be 100 directly east of Guam?

    asked by ahmed
  145. algebra

    How many 5 digit number greater than 24000 can be formed if repetition of digit is allow.

    asked by vinit singh
  146. physics

    An object moving on the x axis with a constant acceleration increases its x coordinate by 161 m in a time of 12.5 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion. Answer in units of m/s2.

    asked by Sam
  147. math

    problem> mystery numbers: Bob is thinking of 2 numbers their sum is 26. their product is 165. what numbers is bob thinking about?

    asked by rachel
  148. english

    You are building a bibliography for a researched writing project in a myth and literature class. Should you use MLA style? a.Yes b.No I think B, but I am not sure.

    asked by Casey
  149. Phsics

    What force must be exerted on block A in order for block b not to fall. The coefficient of static friction between block A and B is 0.55, and the horizontal surface is frictionless. A= 100kg and B=10kg A is on the horizontal surface and B is attached to A.

    asked by Kayla
  150. english

    I open the door to the first room. I look for the switch, the light turns on. The walls are red in colour and the curtains are blue so thick that not a single light can peep through. how can i improve this paragraph??? please help

    asked by ALISHA
  151. s.s

    what landforms do the Chinook Native Americans live near?

    asked by jeydyeiy
  152. Psychology

    Which of the following statements describes the relationship between genes, chromosomes, and DNA? a. Genes, the basic unit of heredity, are located on chromosomes, which consist of strands of DNA b. Genes are composed of and DNA c. Chromosomes, the basic

    asked by bj
  153. Physics

    The location of a car at times t1 and t2 is given by the position vectors r1= 15km due east + 20km due north (time t1) and r2= 13km due west + 25km due north (time t2) The units of distance are kilometers a. What is the magnitude l^rl of the displacement?

    asked by Johana
  154. algebra

    If sally can type a certain number of mailing labels in 6 hours and eric and sue working together can type the same number of mailing lables in 4 hours, find how long it takes eric alone to type the mailing labels.

    asked by Ramie
  155. Math

    Produce a third degree polynomial that has exactly the roots -3 and 5 with y-intercept 1350. I understand I could start with (x+3)(x-5)^2, but i don't know how to get the y-intercept 1350 with the same conditions. Please help. thank you.

    asked by Nilan
  156. math

    the decimal for 15%

    asked by felix
  157. simple interest

    find the simple interest. Assume a 360-day year and a 30-day month. 18000 at 5%; loan made on September 12 and due November 27.

    asked by Anonymous
  158. English

    I have to analyze the use of diction and syntax in three authors specific works, but I'm unsure of how to anazlyze/explain these, exactly. I know that diction is the author's word choice and syntax is sentence structure, but I don't know how to pinpoint

    asked by Soh
  159. physics

    1) Two people sit on a park bench 6.0 ft long, weighing 160 lb. A boy weighing 75lb sits directly over the legs on the left side. A man weighing 170 lb sits 2.0 ft to the right of the boy. How much weight is supported by each leg on the right side

    asked by aakash
  160. geography

    Am I correct in saying that mountains are the landform that separates Europe from Asia?

    asked by Reed
  161. math

    a percent for 3/8

    asked by felix
  162. math

    write three number sentences where difference is 50.

    asked by ali
  163. math

    regroup 22: 2 tens, 2 ones; 1 ten, 12 ones Name the word that describes what was done to show the number in different ways.

    asked by ali
  164. math

    the quotient of -54 and 9, suntracted from 8 times a number is, -18

    asked by jayden
  165. statistics

    what is the probability of randomly selecting a student who exercises between 55 and 80 minutes per week?

    asked by Michelle
  166. Geometry

    wats the areas of a rectangle... base of : 5m high of: (4a+b)m

    asked by Raul
  167. physics

    a low velocity mortar round is fired upward at an angle of 50° from the horizontal with a launch velocity of 40 m/s

    asked by jared
  168. Math - Division

    I can't quite solve this question. Of 98 bicycles in a bike rack, 67 are mountain bikes. What fraction of the bicycles are not mountain bikes?

    asked by Alex L.
  169. social studies

    how do you think technology will be change this area? education

    asked by edeline
  170. algebra

    Find a formula that expresses the fact that P(x, y) is a distance 9 from the origin.

    asked by Dana
  171. health care

    why is teenage pregnancys important for health care administrators to study.

    asked by HELP??????? thanks!
  172. physics

    In an historical movie, two knights on horseback start from rest 72.6 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.280 m/s2, while Sir Alfred's has a magnitude of 0.250 m/s2. Relative to Sir

    asked by randy
  173. physics

    An automobile starts from rest and accelerates to a final velocity in two stages along a straight road. Each stage occupies the same amount of time. In stage 1, the magnitude of the car's acceleration is 2.03 m/s2. The magnitude of the car's velocity at

    asked by randy
  174. trig

    1-cos/1+cos= 2(cosec-cot)

    asked by Aqib
  175. Algebra 2

    Solve using linear combinations. x - 5y = 6 3x + 4y = 18 What are linear combinations?

    asked by Peter
  176. math

    Find the sum using mental math 24 + 71 =

    asked by nelson
  177. Chemistry

    Is C12H22O11 soluble in water and is it ionic or a acid?

    asked by Tyler
  178. mystery number

    What is the three digit mystery number? It is less than 300. The tens digit is 4 more than the hundreds digit. The sum of the digit is 9. The hundreds digit is 2 less than the ones digit.

    asked by camila
  179. physics

    A speedboat starts from rest and accelerates at +1.68 m/s2 for 5.43 s. At the end of this time, the boat continues for an additional 8.16 s with an acceleration of +0.475 m/s2. Following this, the boat accelerates at -0.866 m/s2 for 7.54 s. (a) What is the

    asked by randy
  180. calculus

    what is the integral of (4x^2-2)/(x^2-6x-40)

    asked by Anonymous
  181. Quotes

    i.) When elephants fight, it’s the grass that suffers ii.) I’ve missed more than 9000 shots in my career. I’ve lost almost 300 games. 26 times, I’ve been trusted to take the game winning shot and missed. I’ve failed over and over and over again

    asked by help
  182. P chem

    why does the Shroedinger equation have a specific operator for kinetic energy and only a general expression (V) for potential energy

    asked by quaffi
  183. math

    type 8580 words in 2hrs and 45mins

    asked by josh
  184. Math

    How do you write a number that has a hundreds digit less than 7 , a tens digit less than 5 ,a tenths digit one more than its tens digit , a thousandths digit twice the tens digit , and other digits of your choice?

    asked by Mhyree
  185. Socials

    Visualise yourself as a reporter sent to cover the Fraser Canyon rockslide. Send a telegram to ur newspaper describing the disaster, include a headline. ROCKSLIDE VERY DISASTROUS STOP! Massive fallen rocks have blocked the river. There is an increase in

    asked by Anonymous
  186. math

    write the unit rate of2 into 50

    asked by josh
  187. physics

    a car requires a velocity of 32 m/s assuming that its acceleration is uniform, what is its value?

    asked by Gamila
  188. geography

    My child needs to name three seas that surround the Philippines. He answered The Celebes sea, South China sea and the Arafura sea. I do not think the Arafura sea is correct and I told him to put the Philippine sea instead of the Arafura. Am I correct in

    asked by Mom has a question
  189. Psychology

    Peter and Maria are adopting a child whose biological parents have low IQs. They want to know if this child, too, is likely to have a low IQ? Which of the following is the best response to their question? a. While IQ is heritable at least in part,

    asked by bj
  190. English

    Here are some sentences on the same theme I'd like you to check. I included a few sentences on reading habits and a few words I don't know if they exist. 1) Is the verb "punch" correct in the sentence: Punch your ticket (check), then go on the platform.

    asked by Henry2
  191. English

    I rewrote the procedures passengers go through when travelling by air. I sometimes doubt whether it is better to use the imperative or the you-form. Can you please help me check them? 1) Enter the airport and check your flight number and the boarding time

    asked by Henry2
  192. Chemistry Help

    If 230.0 mL of 0.100 M H2SO4 are mixed with 280.0 mL of 0.300 M H2SO4, what is the molarity of the final solution? in M

    asked by MBH
  193. algebra

    simplify 26-3*2/4^4+3^4 26-6/256+81 20/337 125-2*5/3^3/3^2-(-3)^2 125-10/27/9-(-9) 115/3-9 115/27 want to know if these two problem right

    asked by babygirl
  194. algebra

    simplify 26-3*2/4^4+3^4 26-6/256+81 20/337 125-2*5/3^3/3^2-(-3)^2 125-10/27/9-(-9) 115/3-9 115/27 want to know if these two problem right

    asked by babygirl
  195. Chemistry HELP

    If 150.0 mL of 1.00 M C6H12O6 are diluted to 750.0 mL, what is the molarity of the final solution? ____ M?

    asked by MBH
  196. Chemistry Help!

    To what volume must 290.0 mL of 4.50 M Al(NO3)3 be diluted to produce 2.40 M Al(NO3)3? ____ mL?

    asked by MBH
  197. grammar

    is this question correct? How much holiday had they?

    asked by wayne
  198. Chem112

    Compute pH of the saturated solution of La(OH)3 in ther 3x10^-5 M aqueous solution of La(NO3)3xKsp(La(OH)3).

    asked by Dominique
  199. English

    I left out a few words I'd like you to check. I think sentences 4-5-6 are too confused. Would you please help me check them? Thank you. 1) Can I have an aisle/window seat? Can I have a seat in the front (of the aircraft)? 2) We'll have to make a

    asked by Henry2
  200. math

    Subtract the sum of 81.6 and 4.07 from 129.4

    asked by cindy
  201. geometry

    △ABC ; Ray CE bisects exterior angle BCD ; Ray CD||Line AB

    asked by Sharon
  202. math

    18/24 divided by 32=?????

    asked by monserrat
  203. Plant

    One characteristic of all living organisms is that they (1) make food (2)Live on Land (3)Maintain Homeostasis (4) move from place to place I think its 3

    asked by GAspar
  204. geometry

    Find the radius if the length of an arc is 23.56 and the angle is 135 degrees.

    asked by Tranese
  205. science

    what is the applied voltage on a circuit in which .5 amperes current is flowing and 10 W is generated?

    asked by kelley
  206. Physics

    A projectile is fired with an initial speed v0 at t = 0. The angle between the initial velocity v0 and the horizontal plane is . x y v0 yma

    asked by Maxx
  207. MATH

    -4+3j=-43

    asked by CHACHIS**
  208. Home insurance

    Another term that means the same thing as "insurance company"is: A."insurance agent" B."insurance broker" C."the insurer" D."the insured" I got b.

    asked by ciara
  209. English

    Here is the second part of my summary. Can you please check if everything is OK now? By the way, do you say "On which carriage or in which carriage is your seat?" Which bus number goes to the city centre OR Which number bus goes ....? 1) Go into the

    asked by Henry2
  210. Calculus

    Determine the point(s) (if any) at which the graph of the function has a horizontal tangent line for y=(3^1/2)x+2cos(x), 0¡Üx

    asked by Susana
  211. Language Arts

    In the sentence....It formally accepted the bride into the groom's family. Would accepted be a mental action verb or a physical action verb?

    asked by Brandi
  212. Physics

    What force must be exerted on block A in order for block b not to fall. The coefficient of static friction between block A and B is 0.55, and the horizontal surface is frictionless. A= 100kg and B=10kg A is on the horizontal surface and B is attached to A.

    asked by Kayla
  213. chem

    number of moles in 22.6g C3H7OH

    asked by angel
  214. calculus

    the value of f(4) is negative, but the function is increasing rapidly at x=4

    asked by vedel
  215. Math

    Vats that have the capacity to hold 45 quarts, and if each bottle contains 9/21 quart, how many bottles can be made from each vat?

    asked by Bree-Bree
  216. psychology

    thanks for your help

    asked by bj
  217. math

    a fraction for 0.9 decimal

    asked by felix
  218. English

    Is it OK to say "the plane was delayed by two hours?" Thank you for all your previous explanations. Can you say " I had my blood tested"?

    asked by Henry2
  219. geometry

    1.what is the base of the rectangle for stage # 12? 2.what is the height of the rectangle for the stage #14? 3.what is the perimeter of the rectangle for stage #10? 4.if the base of the rectangle in 36,what is the stage number?

    asked by candy
  220. MATH

    liz earns a weekly salary of $459 and $20 per hour for each over time hour she works. this week her total pay including salary and overtime was $559. write an equation.how many hours of overtime did liz work?

    asked by CHACHIS27
  221. math

    a percent for 0.9 decimal

    asked by felix
  222. social studies

    Information in long-term memory can be organized by all of the following EXCEPT: A)semantic category. B) spelling. C) sound and form. D) familiarity and relevance. Would it be D?

    asked by missy
  223. communication

    What are some froms of medium in popular culture?

    asked by Kelly
  224. WORLD HISTORY

    (This homework question was removed due to a copyright claim submitted by K12 Inc.)

    asked by H.R
  225. history

    Which of the following did the Mayans consider to be worthy of recording? A. The laws of their society B. Ceremonial rituals C.Trade records D. Information about everyday life *please if you can explain I have read the text for this section over and over

    asked by katelynn(pennfoster student)
  226. history

    Which of the following empires rose to have tremendous influence despite having poor resources, a non-strategic location, no precious metals, and poor soil? A.Hittite B.Roman C.Persian D.Chinese *please explain i don't understand B. C. D.

    asked by katelynn(pennfoster student)
  227. Foreighn Languages

    What Language should I learn? Mandarin or French?

    asked by Mario
  228. History

    Who was the first thinker to postulate that numbers are real, not abstractions? A. Hui Shih B. Parmenides C. Pythagoras D. Aristotle *please explain i don't understand this.

    asked by katelynn(pennfoster student)
  229. math

    factor the polynomials x^2 -6 x^2 +5x-6

    asked by kerry
  230. history

    What did islamists spread throughout the Old World starting in the eighth century? A. New crops B. metals used to make new weapons C. Democracy D. Disease

    asked by katelynn(pennfoster student)
  231. social psy

    ) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of

    asked by deb
  232. social psy

    I want to utilize a true experimental design to study the effects of classical music exposure on the cognitive development of newborns. a- What is an independent variable? b- What is a dependent variable? c-What is random assignment? d-Why is random

    asked by deb
  233. Physics

    if the speed of the block is 9.5 m/s at the bottom of the ramp, from what height was the block released? what is the length of the ramp?" and i know that the mass is 7 kg, initial veloctity=0, it is frictionless, and inclined at an angle of 62 degreesif

    asked by Ian
  234. AED/201

    Research the use of technology in schools from 1980s to Present. Must discuss a minimum of 2 events per decade, for a total of atleast 6 events

    asked by love26
  235. Social Studies/Law

    Briefly describe the following court cases or laws/Acts by identifying (for each one): -The constitutional amendment or law involved -The opposing sides of the issue -The relationship of this particular legal issue to the larger issue of diversity: ethnic,

    asked by Quinn
  236. physics

    During a basketball game, a player flies above the basket and drops the ball in from a height of 10 meters. If the ball takes 4.4 seconds to fall, find the acceleration due to gravity.

    asked by Emily
  237. Spanish-I forgot something

    I had to change these into present progressive tense Yo escribo would be- Yo estoy escribiendo. Tu bebes un leche. would be Tu estas bebiendo un leche.(accent over u and a) Nosotros bailamos would be Nosotros estamos bailando.

    asked by Jamie
  238. geometry

    Which statement describes the similarity between sketches and drawings? A Both sketches and drawings are made freehand. B Both sketches and drawings do not require a compass C: Both sketches and drawings do not need drawing tools like a pencil. D. Both

    asked by Help Me
  239. geometry

    If the height of a triangle is one inch more than twice its base, and if the area of the same triangle is 20 square inches, find the base and height of the triangle.

    asked by Lisa
  240. calculus

    How do you estimate derivatives when you don't know the actual equation of the line on the graph, but you have just a picture of the graph?

    asked by fr
  241. Chemistry

    The speed of sound is 3.40 times 10^4 cm/sec. What distance in meters can sound travel during a 48-minute chemistry lecture?

    asked by Anabel
  242. math

    If I lease equipment for 60 months and the original price is $20,000 at an interest rate of 12%, how much is my monthly payment?

    asked by Marjorie
  243. physics

    A model rocket is launched straight upward with an initial speed of 45.4 m/s. It accelerates with a constant upward acceleration of 2.98 m/s 2 until its engines stop at an altitude of 150 m. What is the maximum height reached by the rocket? The

    asked by ben
  244. n/a

    why use phenolphthalein instead of methyl violet in a titration?

    asked by n/a
  245. college general chem

    If 15.0 of is dissolved in enough water to form 270 of solution, what is the molarity of the solution? What is the oxidation state of an individual sulfur atom in ? What is the oxidation state of an individual nitrogen atom in ?

    asked by ronie
  246. General Physics

    two men decide to use their cars to pull a truck stuck in mud. they attach ropes and one pulls with a force of 526 N at an angle of 32deg with respect to the direction the truck is headed, while the other car pulls with a force of 788 N at an angle of

    asked by Jane Mitchell
  247. English

    Thank you. Here are a few sentences I wrote on travelling by train. I don't know the correspondent English terms. I hope you can help me. 1) Check the train times and the fare. Then buy your ticket at the ticket office. You can buy a single or a return

    asked by Henry2
  248. English

    Can you please check for any errors. And corrent the errors for me. It is due tomorrow morning. Also, let me know if you think this is a descriptive essay. If you think i need to add something else let me know. My Dear Mother She is only about five feet

    asked by Angela
  249. Chemistry

    A box measures 8.5 meters long, 7.5 meters wide and 0.25 meters deep, calculate the volume

    asked by Mike
  250. budgeting

    George's car insurance comes due every six month. What is the best way to budget for this expense? A.He should wait for the premium notices to arrive and pay them from his current income. B.He should put the entire amount of the premium in a savings

    asked by ciara
  251. geometry

    what would be the radius of a circle that can be inscribed in a triangle with sides of 35, 29 and 64?

    asked by echus
  252. suranthi

    . Write a program which ask the user to enter a sentence (character by character) and when user press full stop (.) character program should display the full sentence and exit.

    asked by chandima
  253. physics

    A rocket is launched straight up with a constant acceleration. Three seconds after lift off, a small part of the rocket falls off the side. The small part hits the ground 7 seconds later. Ignoring air resistance, what was the acceleration of the rocket?

    asked by anonymous
  254. Calculus

    show lim x->3 (sqrt(x)) = (sqrt(c)) hint: 0< |sqrt(x)-sqrt(c)|= (|x-c|)/(sqrt(x)+sqrt(c))

    asked by Shayna
  255. geography

    Ms. Sue the capital city is Quito, Ecuador. Is this right? If not can you give me a better map to look at???

    asked by Reed
  256. math

    9x+6-4x=8 ---------- 2

    asked by kelly
  257. math

    Ashton broke apart a number into 30 + 7. What number did he start with?

    asked by kate
  258. math

    Ashton broke apart a number into 30 + 7. What number did he start with?

    asked by kate
  259. Algebra 2

    Is this system of equations inconsistent? Is it dependent? x = 3y + 4 6y = 2x - 6

    asked by Peter
  260. geometry

    ODEF is a paralleogram. write the missing coordinates of the point E in terms of u,s,and t.

    asked by Anonymous
  261. science

    sandy built a ramp to test how gravity affects the movement of a cart. she wants to find out how height affects the speed of the cart. design an experiment for sandy to use

    asked by Shion
  262. physics

    What upward tension force (in Newtons) would allow a 1240-kg elevator to accelerate downwards (i.e., negative) at a rate of 4.29 m/s/s?

    asked by Anonymous
  263. college prep english

    Ok so long story short I need help with homework......I have 3 questions on genre and its 2 genre's how do I know which one to write about ?

    asked by amber
  264. United States History

    What is Jeffersinans position on funding debts, and justification? His position is that each state should be responsible for its own debt. But I don't know why, or if that is right.

    asked by Lala
  265. math

    i need the fraction for3/8

    asked by felix
  266. rounding

    is 84 rounded to 90 or 80

    asked by ashante
  267. geometry

    find the value of each variable 3m+5+4m-10

    asked by ana
  268. biology

    Hi there! I have this question for my bio/genetics homework, and I can't seem to figure it out. It reads, "A true-breeding red snapdragon is crossed to a true-breeding white snapdragon. The F1 progeny are all red. When the F1 is selfed, the following F2

    asked by Jennifer
  269. Math

    multiply and simplify 9/7*9/6

    asked by sasha
  270. math

    solve[1.67*10^(-7x)-10^(-6055x)]

    asked by manish
  271. General Physics

    a force is applied to a 1.9 kg mass and produces a 3.1 m/s^2 acceleration. what acceleration would be produced by the same force applied to a 14.3 kg mass? answer in m/s^2

    asked by Jane Mitchell
  272. visual basic

    i have a project due where i have to build a multitier application (presentation and services tiers). The instructor hasn't gone over what any of this and I don't know where to start. It's due Saturday.

    asked by missy
  273. General physics

    Two block are arranged at the end of a massless string. The system starts from rest. When the 4.01 kg mass fallen through 0.336m, its downward speed is 1.32 m/s. the acceleration gravity is 9.8 m/s^2. what is the frictional force between the 5.3 kg mass

    asked by Jane Mitchell
  274. arithmetic

    show how to find the sum by a ten hundred or thousand

    asked by Anonymous
  275. social studies

    Chris must sit out the next two weeks of basketball games because of a problem with her hamstring muscle. Her eighth grade coach tells her to use this off time imagining herself out on the court. He wants Chris to feel her body running down the court, to

    asked by missy
  276. Astronomy

    Explain what occurs during tidal friction?

    asked by Rebecca
  277. chemistry

    Im really confused....Im being asked to find the highest pH of HI, KOH and HNO3 all with a concentration of 0.10M. I understand HOW to find it: ph=-log[concentration of H]....but wouldn't that technically mean the pH of HI and HNO3 are the same?!

    asked by Anonymous
  278. math

    draw a diagram three eights of the 56 resteraunts in town were closed on monday a.how many resteraunts were closed omn monday b.how many resteraunts were open in town on monday

    asked by Anonymous
  279. math

    write 25.45 in expanded notation

    asked by JMP
  280. calculus

    find all points at which the tangent line to the graph of y=x3 is parallel to the line y=27x+5

    asked by ellen
  281. math

    Given the formula X=x to the power of 2 + y to the power of 2 can you find X if x=9,y=negative 4,z=1/2?

    asked by Jake
  282. information technolgy

    hi I have a project to do on netbeans but I am having problems.The project is you have to enter a message and there must be a encryption button,when you click on the encryption button the message must get encrypted.Can you help me out with the encryption

    asked by kyle
  283. math

    An empty glass jar weighing 1.54 kg is in the shape of a cylinder which has a radius of 14cm and a height of 20cm. Calculate how many litres of water it will hold when filled to the top.Also calculate its weight when it is filled with water (take pie=22/7)

    asked by Lyn
  284. science

    a truck is travelling along a straight road at 72 km/hr.The driver saw a woman crossing and immediately steps on the brake.If the truck stops in 7 sec.what is its acceleration

    asked by arthur
  285. math

    about what percent of the total population believe saying the early bird catches the worm to be true 136,800,000 believed this to be true

    asked by hunter
  286. science

    What factors do you think make an element valuable?

    asked by lima
  287. science

    What factors do you think make an element valuable?

    asked by lima
  288. MATH

    multiply 138* 29/46*7/9 give answer as a whole ormixed number????? this is a foreign language to me please help!!!

    asked by sasha
  289. psychology

    Janice smokes while she is pregnant with her son. He is more likely to have: a. a normal IQ b. a lower IQ c. a higher IQ d. an IQ below 90 I choose B, is this right?

    asked by bj
  290. math

    what is the compaing x miles to 1 hour?

    asked by deon
  291. Physics

    An electron, starting from rest and moving with a constant acceleration, travels 5.5 cm in 10 ms. What is the magnitude of this acceleration? Answer in units of km/s

    asked by Anonymous
  292. math

    fraction for15%

    asked by felix
  293. budgeting your money

    Which of the following items should be martis top priority in budgeting her disposable income? A. Covering the rent for her apartment B. Interior decorations and furniture C. A new set of dishes for her kitchen D. Her long-desired trip to the bahamas I got

    asked by ciara
  294. PHYSICS

    Two vectors and have magnitude A = 2.90 and B= 3.00. Their vector product is A X B= -4.91 + 2.08. What is the angle between A and B?

    asked by ahmed
  295. maths

    a car travels at a speed of 35mph how long would it take a car to travel 7miles

    asked by chloe
  296. English

    I urgently need to know if the word choice and tenses are correct. Thank you. 1) Enter the airport and check your flight number and the boarding time of your flight on the departures board. 2) Before going to the check-in desk make sure your baggage

    asked by Henry2
  297. ped212

    Discuss the differences between process and product evaluation. Give examples of each type of evaluation. Discuss the value of each type of evaluation. What is the significance of focusing on the process in physical education? How does this information

    asked by tamika
  298. english

    A list of works cited should include: a.All the works you read while writing your paper b.All of the works you used in your paper. c.All of the works you could find while writing your paper. i think its b.

    asked by Casey
  299. physics

    A car starts from rest and accelerates for 6.5 s with an acceleration of 3.6 m/s2. How far does it travel? Answer in units of m

    asked by Sam
  300. English

    Thank you both for helping me. I just wanted to know if the folliwing two words are correct:"them" and "alerts". 1) Go through security and show your passport.Put your hand luggage and any metal object in a basket for them (?) to be scanned. 2) Then walk

    asked by Henry2
  301. PHI 103

    Putting an argument into premise-conclusion form can make it easier to

    asked by Anonymous
  302. pre ap chemistry

    how many CaI2 are presented in 3.28 moles?

    asked by jasmin
  303. physics

    person must jump off a balcony at an angle of 20 degrees 10 meters above the ground and land in a window 3 meters away and 8.5 meters above the ground. What should the velocity be in order to make this jump?

    asked by Anonymous
  304. physics

    person must jump off a balcony at an angle of 20 degrees 10 meters above the ground and land in a window 3 meters away and 8.5 meters above the ground. What should the velocity be in order to make this jump?

    asked by Anonymous
  305. math

    Does the median or mean best describe the typical size of the tour shown in the table above?explain.

    asked by marlene
  306. Global History ( persians and assyria)

    differences between Assyria empire and persian empire

    asked by Karan
  307. physics

    person must jump off a balcony at an angle of 20 degrees 10 meters above the ground and land in a window 3 meters away and 8.5 meters above the ground. What should the velocity be in order to make this jump?

    asked by Anonymous
  308. physics

    person must jump off a balcony at an angle of 20 degrees 10 meters above the ground and land in a window 3 meters away and 8.5 meters above the ground. What should the velocity be in order to make this jump?

    asked by Anonymous
  309. algebra

    -84/43 -7y=7

    asked by ruth
  310. government

    hey i need help in this question Is there ever a time where american citizens disagreed with the way the government is handling things in the past?

    asked by sara
  311. Calculus-Rationalizing Denominator

    I am very confused on how to rationalize a denominator, it just gets harder and harder.*will be using the V symbol again as a square root symbol.* I get how to rationalize something simple as V2/V7, I would get V14/7 as the answer, but I get confused on

    asked by -Untamed-
  312. world geography

    Can you give me a link with an excellent map to find the answer to these questions? What oceans border Australia? And What continent is south of the four major oceans of the world? Thank You!!

    asked by Louise
  313. Socials Telegram ms. sue

    Thanks for helping me with the telegram. Was my headline okay?

    asked by Mysterious
  314. Chemistry

    how many ions and moles does 113 mL of .490 M aluminum chloride have?

    asked by Tyler
  315. Calculus

    About rationalizing denominator, is it true that you can't always multiply by the same square root denominator to get a perfect square?

    asked by -Untamed-
  316. Geometry

    Find the intercepted arc if the radius is 9ft and the area of the sector is 179.54

    asked by Tranese
  317. math

    6x=82

    asked by april
  318. geometry

    If EF = 4x - 19, FG = 3x - 9, and EG = 28, find the values of x, EF, ad FG.

    asked by Brad
  319. math grd 10

    factor the polynomials x^2 -6 x^2 +5x-6

    asked by kerry
  320. Math

    Can someone please help me figure out the mean, standard deviation, raw score, and z-score of 27,3,4,16,0.. Any help is super appriciated.. thanks sooo much.

    asked by Mark
  321. biology

    what is grana?

    asked by mary grace
  322. Math

    The homothetic geometry on C is (C,H) where H is the group of scaling of C. Which figures are congruent in (C,H) to the circle of radius 1 centered at 1? How could you describe the congruence class in language understandable by a high school geometry

    asked by Kyle
  323. math

    what is the diameter orbit and planet mass of hydra the moon of pluto.

    asked by shahriar
  324. math

    what is 3a squared -5a in factored form?

    asked by Anonymous
  325. Mechanics

    What does a polar moment of inertia depend on?

    asked by Jessica
  326. Physics

    An astronaut has crash landed on a planet that little is known about (not even the acceleration due to gravity). She must descend a steeo cliff to find shelter, but wants to know how high the cliff is before making the attempts. She happens to have

    asked by Alberto
  327. math

    find a fraction of 20%

    asked by felix
  328. science

    what is the diameter orbit and planet mass of hydra the moon of pluto.

    asked by shahriar
  329. English

    I think I used "punch" incorrectly. 1) What do you call the machine into which you insert your train ticket and you get the date and time stamped on it (??). Before you go on the train, you have to ..... your ticket.

    asked by Henry2
  330. physics

    I am flying a plane capable of an airspeed of 100 km/hr. If the wind velocity was 45 km/h [95], in what direction would I have to fly in order to follow the track to my destination. And how long would this trip take? The distance between my starting point

    asked by aidan