Questions Asked on
October 5, 2011

  1. math

    Find two numbers the exact answer is between. 3 X 567

    asked by andrew
  2. chemistry

    a)H2SO4 b)CuS c)HF d)Zn(NO3)2 Which are strong, weak, or non electrolytes. I was think A was strong B and C were weak and D is non

    asked by jessica
  3. physics

    A certain orthodontist uses a wire brace to align a patient's crooked tooth as in the figure below. The tension in the wire is adjusted to have a magnitude of 21.12 N. Find the magnitude of the net force exerted by the wire on the crooked tooth.

    asked by sarah
  4. Stoichiometry

    So I have this question it reads Consider the generic chemical reaction How many moles of B are required to completely react with 2A + 3B ==> 3C 1. 6 mol of A 2. 2 mol of A I won't put them all just guide me in the right direction please

    asked by Monique
  5. science chemistry

    N2 (g) + 3H2 (g) -> 2NH3 (g) assume 4 molecules of nitrogen and 9 molecules of hydrogen are present. after complete reaction, how many molecules of ammonia are produced. do i go from N to NH3 or H to NH3?

    asked by cook
  6. Physics

    A skateboarder shoots off a ramp with a velocity of 6.7 m/s, directed at an angle of 53° above the horizontal. The end of the ramp is 1.0 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

    asked by Sam
  7. Critical thinking

    Explain the relationship between informative, explanatory, and persuasive statements and critical thinking.

    asked by Rose
  8. chemistry

    a solution was perpared by dissolving 4.765 g of AlCl3 in enough water to give 250 mL of AlCl3? a. how do you calculate the molarity of the solution b. how do you calculate the osmolarity of the solution

    asked by Anonymous
  9. pre-calculus

    a ship passes by buoy b which is known to be 3000 yd from peninsula p. the ship is steaming east along line be and angle pbe is measured as 28 degrees. after 10 min., the ship is at s and angle pse is measured as 63 degrees. how far from the peninsula is

    asked by tatiana
  10. maths

    the 3rd term of a g.p is 63 while the 5th term is 567,what is the sum of the first 7 terms

    asked by kingsley
  11. chemistry

    Tin metal is heated with oxygen gas to yield tin(IV) oxide. Express your answer as a chemical equation. Identify all of the phases in your answer

    asked by aby
  12. geography

    What problems might exist in the Western Cordillera region for farming and transportation?

    asked by Kim
  13. Organic chemistry

    You are at isoelectric point for a solution of Leucine. If the number of negatively charged carboxyl ate groups, -COO-, is 1x10^19, how many positively charged amino groups, NH3+, would there be?

    asked by Becky
  14. physics

    When a 2.50-kg object is hung vertically on a certain light spring described by Hooke's law, the spring stretches 3.13 cm. a)What is the force constant of the spring? b) If the 2.50-kg object is removed, how far will the spring stretch if a 1.25-kg block

    asked by Anonymous
  15. Physics

    A woman at an airport is towing her 20.0 kg suitcase at constant speed by pulling on a strap at an angle θ above the horizontal. She pulls on the strap with a 35.0 N force, and the friction force on the suitcase is 20.0 N. a) What angle does the strap

    asked by Stephanie
  16. accounting

    andrew quits his job as an accountantwhere he earns $45000 per year to go back to scool for 2 years to get an NBA degree. He attends a school that charges $25000 per year for tuition & related expenses. How much is the total cost (explicit plus

    asked by jamal
  17. math

    By using the table in the handbook, the present value of $12,000 for six years compounded at 6 percent semiannually is: (Points : 2)

    asked by Jessie Phillips
  18. statistics

    A random sample of state gasoline taxes in cents is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does you interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38

    asked by tina
  19. Kirksville RIII

    What will be the ionic equation after nickel nitrate is allowed to stand for several months

    asked by Saumya
  20. Physics

    A shell is fired from the ground with an initial speed of 1.68 103 m/s at an initial angle of 37° to the horizontal. (a) Neglecting air resistance, find the shell's horizontal range. m (b) Find the amount of time the shell is in motion. s

    asked by Sydney
  21. Math

    Given that cos 13pi/18=sin y, first express 13pi/18 as a sum of pi/2 and an angle, and then apply a trigonometric identitiy to determine the measure of angle y.

    asked by Vincent
  22. Chemistry(please check, thank you!!)

    Is this equation balanced? CoCl2(aq) + Na2CO3(aq) -> CoCO3(s) + 2NaCl(aq) I think that it is because there is 1 Co on the left and 1 on the right. There is 2 cl on the left and 2 on the right. 2 Na on the left and 2 on the right and 3 CO on left and on

    asked by Hannah
  23. Calculus

    Here is the other. Thank you! A kite 100 ft above the ground moves horizontally at a speed of 8 ft/s. At what rate is the angle between the string and the horizontal decreasing when 200 ft of string has been let out?

    asked by Linda
  24. calculus

    A particle is moving along the curve y=5sqrt(3x+1). As the particle passes through the point (5,20) its x-coordinate increases at a rate of 3 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by =/
  25. Physics

    A sprinter can accelerate with constant acceleration for 2.70 s before reaching top speed. He can run the 100-meter dash in 10 s. What is his speed as he crosses the finish line? Please show me all the steps to solving this problem. Thanks

    asked by Beth
  26. Physics

    Tim and Rick both can run at speed Vr and walk at speed , Vw with Vr > vw. They set off together on a journey of distance . Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half. How long does it take

    asked by Sara
  27. Math word problem(algebra)

    Carol is y years old&her daughter is 25 years younger.Find Carol's present age if the sum of their ages in 6years' time is 75years

    asked by kimi
  28. Statistics

    Compare the 95% and 99% confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs. 95% confidence intervals: 6.214, 7.686 99% confidence intervals: 5.944, 7.956

    asked by Hope
  29. Chemistry

    A few Drops of HCl spilled over in the CaCO3 sample. Will the Reported percent of CaCO3 be too high, too low or unaffected?

    asked by Agostinho
  30. Statisics

    35%of adult Americans are regular voters. A random sample of 250 adults in a medium-size college town were surveyed, and it was found that 110 were regular voters. Estimate the true proportion of regular voters with 90% confidence and comment on your

    asked by tina
  31. Chemistry

    What is the final temperature after a 21.8 g piece of ice is placed into a styrofoam cup containing 114 g of hot water at 68.2 degrees C. Please explain because I don't even understand how to start.

    asked by JJ
  32. plz help me in physics

    A ship leaves the island of Guam and sails a distance 295km at an angle 35.0 north of west. a:In which direction must it now head so that its resultant displacement will be 100km directly east of Guam? (Express your answer as an angle measured south of

    asked by ahmed
  33. physics

    You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

    asked by bryce tanaka
  34. Chemistry

    Calculate [H3O+] and [OH-] in 0.22 M KOH(aq). This is a strong base.

    asked by maria
  35. physics

    A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.

    asked by jon
  36. Statistics

    Compare the 95% and 99% confidence intervals for the hours of sleep a student gets. Explain the difference between these intervals and why this difference occurs. 95% confidence intervals: 6.214, 7.686 99% confidence intervals: 5.944, 7.956

    asked by Hope
  37. physics

    Students in lab measure the speed of a steel ball launched horizontally from a table top to be 4.2 m/s. If the table top is 1.2 m above the floor, where should they place a 20 cm tall tin coffee can to catch the ball when it lands?

    asked by samantha
  38. trig

    in a circle of radius 26, find the length of the arc spanned by a central angle of pi/4 radians. round your answer to 2 decimal places. use 3.1416 as an approx for pi.

    asked by tiana
  39. calculus

    Find constants a and b in the function f(x)=ax^b/(ln(x)) such that f(19)=1 and the function has a local minimum at x=19. What is a and b?

    asked by Tina
  40. physics

    A motorist drives south at 26.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30.0 m/s for 1.00 min. For this 6.40 min trip, find the following values.find displacement, average speed, and average

    asked by jon
  41. trig

    Triangle PQR is congruent to P'Q'R. If PQ= x+y, P'Q'+10, Q'R'= 3x-y, and QR=14, then what is x and y?

    asked by Beth
  42. physics

    You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

    asked by bryce tanaka
  43. Chemistry

    I can't figure out how to set up this problem...You have a large amount of 8.00 M stock solution. You need 1.80L of 3.00 M solution for an experiment. How would you prepare the desired solution without wasting any stock solution?

    asked by Nicole
  44. chemistry 12

    A) Calculate [OH^-] in a o.12 M solution of hydrazine, H2NNH2(aq), having K of 3.0x10^-6. B) what is the percent ionization of the H2NNH2(aq) I can't get these for the life of mee!

    asked by Jacob
  45. english

    Character can be portrayed by direct exposition. true or false?

    asked by destin
  46. physics

    In suddenly the value of G, the gravitational constant, increased to a billion times its actual value, what sorts of things would happen?

    asked by christina
  47. physics

    To start an avalanche on a mountain slope, an artillery shell is fired with an initial velocity of 350 m/s at 51.0° above the horizontal. It explodes on the mountainside 40.0 s after firing. What are the x and y coordinates of the shell where it explodes,

    asked by jon
  48. ms.sue

    it's like we're pen pals.you are very smart.what school do you go to and how old are you?i want to know that what should you do when you are fighting with your best friend,you haven't been talking to her for about 9 days.You are the one who always says

    asked by jennifer white
  49. Physics

    In a portable defibrillator, energy is stored in a capacitor charged to a high potential difference. The capacitor is discharged through the patient’s body in a short, high-powered pulse. a) The capacitor in a portable defibrillator is charged to 5000

    asked by jo
  50. MATH(Statistics)

    Students are given three chances to pass a basic skills exam for permission to enrol in Calculus. Sixty percent of the students pass on the first try, of those that fail on the first try, fifty four percent pass on the second try, and of those remaining,

    asked by Anonymous
  51. trig

    Solve for ¥è in the equation tan ¥è = 2.42 when 180¨¬ < ¥è < 360¨¬. Round your answer to the nearest tenth of a degree. (Enter only the number.)

    asked by Parker
  52. physics

    A tractor T is pulling two trailers, M1 and M2, with a constant acceleration. T has a mass of 200 kg, M1 has a mass of 100 kg, and M2 has a mass of 150 kg. If the forward acceleration is 0.60 m/s2, then the horizontal force on the tractor due to the

    asked by wahida
  53. physics

    A soccer ball of diameter 29 cm rolls without slipping at a linear speed of 3.6 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 18 m?

    asked by kat
  54. math

    a ferris wheel has the diameter of 240 feet and the bottom of the ferris wheel is 9 feet above the ground. find the equation of the wheel if the origin is placed on the ground directly below the center of the wheel

    asked by sn
  55. Physics

    You are on a treasure hunt and your map says "Walk due west for 52 paces, then walk 29.6° north of west for 40 paces, and finally walk due north for 25 paces." What is the magnitude of the component of your displacement in the following directions? (a)

    asked by Taylor
  56. physics

    An airplane maintains a speed of 597 km/h relative to the air it is flying through as it makes a trip to a city 759 km away to the north. (a) What time interval is required for the trip if the plane flies through a headwind blowing at 36.0 km/h toward the

    asked by jon
  57. Government US

    Democrats in Washington have usually responded to high levels of unemployment with b. increased government spending. c. increased government taxes. d. decreased government taxes. e. decreased government regulation.

    asked by HM
  58. physics

    You pull your little sister across a flat snowy field on a sled. Your sister plus the sled have a mass of 39 kg. The rope is at an angle of 39 degrees to the ground. As you pull with a force of 31 N, the sled travels a distance of 47 m.

    asked by bryce tanaka
  59. physics

    a ball is dropped from a tower 122.5meters tall. how long does it take the ball to reach the ground?

    asked by m kay
  60. Physics

    An object is dropped from rest. What is its instantaneous speed when it has been in motion for 5 s? The acceleration of gravity is 9.8 m/s2 . Answer in units of m/s

    asked by reb
  61. Chemistry

    when doing a lab experiment on limiting reagents for CoCl2 there is a chart to fill out that says to find the concentration of test tubes 1-6, find the volume delivered and find the moles of CoCl2. How would I find the moles of CoCl2 for each test tube?

    asked by Hannah
  62. Algebra 2

    At a county fair, adults' tickets sold for $5.50, senior citizens' tickets for $4.00, and children's tickets for $1.50. On the opening day, the number of children's and senior's tickets sold was 30 more than half of the number of adults' tickets sold. the

    asked by Peter
  63. calculus

    A street light is at the top of a 20 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 6 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 35 ft from the base of the pole?

    asked by neil
  64. Literacy

    This is a brief story on Jackie Robinson's life and I have to make a sequence of important events in his life and the first one was done for me: Jackie Robinson was the first African American baseball player to play in the modern Major leagues. He played

    asked by Candy Corn 
  65. chemistry ASAP

    calculate the average atomic mass of element x in which the first isotope found in 28.5% abundance weighs 200.0 amu and the other isotope weighs 220.0 amu.

    asked by mary
  66. Chemistry

    132. Aerosol cans carry clear warnings against incineration because of the high pressures that can develop upon heating. Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if

    asked by stacy
  67. Pre-Calculus

    From a point on the ground 25 ft. from the foot of the tree, the angle of elevation of the top of the tree is 32 degrees. How do you find the height of the tree to the nearest foot?

    asked by Joy
  68. Physics

    A .45 kg shuffleboard puck is given an initial velocity down the playing surface of 4.5 m/2. If the coefficient of friction between the puck and the surface is .2, how far will the puck slide before coming to rest?

    asked by anonymous
  69. Stoichiometry

    Consider the reaction between reactants S & O2 2S(s) + 3 O2(g) ==> 2 SO3(g) If a reactant vessel initially contains 5 mol S and 9 mol O2, how many moles of S, O2 and SO3 will be in the reaction vessel once the reactants have reached as much as possible?

    asked by Monique
  70. English

    I am writing an English paper and I was wondering if one is supposed to always capitalize the word gothic? What are the rules? My paper includes phrases such as: gothic genre gothic mother gothic conventions gothic story gothic characteristics gothic tale

    asked by Grayson
  71. Physics

    A mass of 18 kg is being pushed up a frictionless incline with a constant force of 20 Newtons directed parallel to the incline, up the incline. At the top of the incline the mass is moving at 23 m/s up the incline. If the angle of inclination is 58 degrees

    asked by Tina
  72. Government USA-Help

    Supply-side economics, during President Reagan’s administration, involved a. the supply component of the supply-demand equation. b. stressing the importance of tax cuts for businesses. c. stressing the importance of tax cuts for the wealthy. d. an

    asked by HM
  73. Valpo high school

    pola develops a new espresso machine, which she means "Quik Shot" she also writes the operating manual. Pola can obtain trademark protection for

    asked by Beath
  74. Physics

    The driver of a 1350 kg car, initially traveling at 10.6 m/s, applies the brakes, bringing the car to rest in a distance of 15.0 m. Find the net work done on the car. Not sure how to set this problem up.

    asked by Help
  75. chemistry

    how many moles of CO2 are produced if you start with 3 mol of CaCO3? balanced equation is: CaCO3--->CaO=CO2

    asked by bethany
  76. science

    A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 170 lb person burn during 10 hours of sleep? (Note

    asked by Anonymous
  77. physics

    A diver of mass 43.2 kg jumps off a high dive 10.0 m tall. If he comes to a stop 2.0 m below the surface of the water, what was his acceleration after he entered the water?

    asked by Kalyn
  78. STATISTICS

    Four people(North, South, East, West) are each dealt 13 cards from an ordinary deck of 52 cards. a. If South has exactly one ace, what is the probability that his partner North has the other three aces? b. If North and South together have 10 hearts, what

    asked by Anonymous
  79. critical thinking (just explain the question plz)

    can u explain this question for me or rephrase it because i don't understand what it means by fact-based subject matter or value-based subject matter. Does your hypothesis test fact-based subject matter or value-based subject matter? Briefly explain.?

    asked by allie
  80. Chemistry

    What is the molarity of H2SO4 in a solution prepared by adding 15.0 mL of 6.0 Molarity H2S04 to enough water to make 100.0 mL of solution?

    asked by Andrea
  81. Math

    Your bank account balance is -20.85. you deposit $15.50. What is your new balance?

    asked by Jenny
  82. math

    ms.goldfarb has 12 turqoise beads and 3 times as many amber beads. she is making 8 pins with the same number of beads on each pin. how many beads will be on a pin?

    asked by kylie
  83. Physics

    A mass of 11 kg is placed on a frictionless incline which is inclined at an angle of 69 degrees above the horizontal. It is held in place by a rope which is attached to a wall at the top of the incline. The rope is angled 13 degrees above the direction

    asked by Tina
  84. Math

    The area of a rectangular photograph is 59 square inches.It is to be mounted on a rectangular card with a boarder of 1 inch at each side and 2 inches at the top and bottom.Express the total area of the photograph and the boarder,A, as a function of the

    asked by Chole
  85. trig

    Solve sin ¥è = -0.204 for 90¨¬ < ¥è < 270¨¬. Give your answer to the nearest tenth of a degree.

    asked by Parker
  86. Physics

    A hovercraft of mass 69.0 kg can move on a horizontal surface, the x-y plane. A single unbalanced force acts on the hovercraft, but the size of the force is unknown. The hovercraft initially has a velocity of 5.0 m/s in the positive x direction and some

    asked by Help
  87. Calculus

    Find dy/dx by implicit differentation. ysin(x^2)=-xsin(y^2)

    asked by Kelly
  88. PHYSICAL SCIENCE

    density of a sample of zinc that has a mass of 48 kilograms and a volume of 7.5 mL.

    asked by JOCOBI
  89. chemistry

    balnced equation CaCO3-->CaO+CO2 how many moles of CO2 are produced if you start with 3 mol of CaCO3?

    asked by bethany
  90. Calculus

    2^3V4(2^3V54-^3Vx) is equal to 16, then x is equal to... I simplified the 2^3V4 and got 64, and just got stuck.

    asked by -Untamed-
  91. physics

    Tom & !@#$%^& are 25 m apart at rest. Tom accelerates at 5 m/s/s towards !@#$%^&. 0.21 sec later !@#$%^& accelerates 6 m/s/s towards Tom. Where do they meet, how fast is each traveling when they meet, and when do they meet?

    asked by Susan
  92. history

    I am helping my son who is in the 6th grade. He has a crossword puzzle that relates to early civilization and the clue is different. We have this much so far ???e??? for a total of 7 letters with an e in the middle please help.

    asked by m
  93. Cal

    Express the given quantity in a single logarithm. ln(a + b) + ln(a - b) - 2 ln c

    asked by Zac
  94. Velocity and Acceleration

    A car is travelling on a highway Can it have a negative velocity & a positive acceleration at the same time? Can the car change d direction of its velocity when travelling with constant acceleration?

    asked by -Untamed-
  95. physics

    A projectile is fired with an initial speed of 26.0 m/s at an angle of 30.0 above the horizontal. the object hits the ground 9.00 s later

    asked by Anonymous
  96. statistics

    in a class of 40 student,18 pass maths, 19 pass account,16 pass economics 5 pass maths and account only, 6 pass maths only, if each student pass at least one of the subject.find the percentage number who fail in at least one of economics and maths. how

    asked by kenneth
  97. Physics

    A mass of 18 kg is being pushed up a frictionless incline with a constant force of 20 Newtons directed parallel to the incline, up the incline. At the top of the incline the mass is moving at 23 m/s up the incline. If the angle of inclination is 58 degrees

    asked by Tina
  98. Chem

    State one physical property and one chemical property of oxygen. Physical property: Chemical property:

    asked by Nicole
  99. physics

    How to solve: If a man walk with speed of 2km/hour and rain fall became in the shape of 90 degree.then find out velocity n direction of rain if man walk with speed of 4km/hour and angle of rain is 45 degree

    asked by Anonymous
  100. physics

    A STONE IS DROPPED FROM A CLIFF SOME HIGH. DISREGARDING AIR RESISTENCE, (a) HOW LONG DOES IT TAKE THE STONE TO REACH THE GROUND? (b) WHAT IS ITS SPEED WHEN IT STRIKE THE AROUND?

    asked by LALAINE
  101. Geometry

    If the measures of the exterior angles of the acute angles of a right triangle are (6x+23) and (4x+17), find the measures of the acute angles.

    asked by Rosa
  102. English

    I have to research Sopocles and I'm stuck on a few of these statements about him: 1.I think he won more first place prizes for his plays than any other playwright in history, correct? 2.I think he was a priest, correct? 3.This one I'm stumped on and I've

    asked by Samantha
  103. Algebra word problem

    There are 50 questions to answer in a triva contest. Each player starts with 100 points. He or she earns ten points for each correct answer but will lose four points for each incorrect answer. Each player must answer all 50 questions. What is the fewest

    asked by Linda
  104. English

    I left out a sentence. I don't know which form is best. 1)I would be really grateful to you if you could send me the names of Irish high schools which might be interested in a partnership with our school. 2) It doesn't matter if German is not taught at

    asked by Henry2
  105. Math Linear Algebra

    Find the inverses of the matrices. Let A = 1 2 5 12 b1 = -1 3 b2 = 1 -5 b3 = 2 6 b4 = 3 5 Find A^-1, and use it to solve the four equations. Ax = b1, Ax = b2, Ax = b3, Ax = b4

    asked by Allan
  106. Math

    I have to find the prime factorization of each number and write down the answers with exponents when repeated factors appear. eighteen, four hundred eighty, six hundred forty Next, I need to write this fraction in lowest terms. one-hundred sixty-five over

    asked by Alex L.
  107. Physics

    A mass of 5.6 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 30 Newtons. If the length of the incline is 58 meters and the mass is originally at rest at the top of the incline and then

    asked by Tina
  108. calculus

    Find the derivative of the function. y=cos((1-e^x)/(1+e^x)) Please show all work and explain. I am very confused

    asked by Anonymous
  109. Algebra 2 (Distance Problem)

    A train leaves Union Station for Central Station, 216 km away, at 9 A.M. One hour later, a train leaves Central Station for Union Station. They meet at noon. If the second train had started at 9 A.M., and the first train at 10:30 A.M., they would still

    asked by Peter
  110. US Gov

    The reason a statement specific to state powers was not part of the original U.S. Constitution was that: a. New York delegates refused to allow discussion on the matter. b. it was assumed to be obvious. c. it was deleted under the Virginia Plan. d. no such

    asked by Brooke
  111. Chem

    Living things require oxygen for respiration. Fuels require oxygen for burning. Air contains much more nitrogen than oxygen. Is it a good thing to have more oxygen than nitrogen in air? Explain your answer.

    asked by Nicole
  112. physics

    A car moving 17 m/s slows down at a uniform rate of 2.6 m/s2. How far does the car travel in 3.3 seconds?

    asked by Anonymous
  113. higher math

    what is the distance between the point A(3,8) and the circle (x^2+y^2+4x-6y) is equal to 12

    asked by Tama
  114. science

    I can't understand why a ball bounces many time before coming to a rest

    asked by dany
  115. chemistry ASAP

    calculate the average atomic mass of element x in which the first isotope found in 28.5% abundance weighs 200.0 amu and the other isotope weighs 220.0 amu.

    asked by mary
  116. chemistry

    150 mL of a 4.00 molar NaOH solution is diluted with water to a new volume of 1.00 liter. What is the new molarity of the NaOH?

    asked by vee
  117. Physics

    The strength of gravity on Mars is only 40% of that on earth. If a child has a mass of 30 kg on earth, what would the child's weight be on Mars? . I came up with 120N is this right?

    asked by Crystal
  118. 3rd grade math

    are there some tutors available in person, before school this morning to help my daughter Valerie Garza?

    asked by Lori Alexander
  119. Geometry

    B is the midpoint of segment AC. AB= 5X and BC =3X+4 find AB, BC and AC

    asked by Joey
  120. Physics

    a car traveling westward at 20 m/s turns around and travels eastward at 5 m/s. what is the change in velocity of the car?

    asked by Katie
  121. Writing Essay

    Where will you find the thesis sentence in an introduction paragraph? A.The middle of the paragraph B.Immediately after the topic sentence C.The last sentence of the introduction paragraph. i got C.

    asked by ciara
  122. Finance

    Equipment cost $625,000, salvage value $50,000 at end of 10 yrs. Probability .15 Cash Flow $60,000, .25 $85,000, .45 110,000, .15 130,000 What is expect cash flow, How do I stretch out for 10 years do I multiply about out get that total and get PV from

    asked by Ron
  123. nursing

    What are some processes for applying nurse-sensitive performance reviews and quality indicators? How can these processes be best implemented? What is their effect on nursing research and practice?

    asked by jen
  124. Math

    what are constant ratios?

    asked by Alice
  125. MATH(STATISTICS)

    Urn A contains R red balls and W white balls, urn B contains r red balls and w white balls. a.If an urn is selected at random and a ball drawn, what is the probability that the ball is red? b.If a ball is drawn from urn A and put into urn B, and then a

    asked by Anonymous
  126. Algebra Splitting the Cost

    The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What

    asked by Linda
  127. Math(Statistics)

    A certain soccer team wins (W) with P(W)= 60%, loses(L) with P(L) = 30%, and ties (T) with P(T) = 10%. The team plays three games over the weekend. a.Determine the elements of the event A that the team wins at least twice and does not lose. b.Find P(A)

    asked by Anonymous
  128. math

    I need a few examples of Arithmetic sequences in our daily lives. I also need the general formula of an arithmetic sequence. Can anybody help?

    asked by Howler
  129. physics

    How do you know what element is chemically active on the periodic table? PLS HELP

    asked by ted
  130. pre-calc

    How do u solve (f-g)(x) when f(x)=4x/7 +7 and g(x)=-6/x Ok so its (f-g)(x)=4x/7 +7 - (-6/x) But how do u simplify it from there? Thanks!

    asked by cade
  131. Chemistry

    I don't know how to set up this problem...can you help? How many milliliters of 6.00M HCl are required to react with 150 mL of 1.48 M Al(OH)3? Al(OH)3+3HCl to AlCl3 + 3H2O

    asked by Nicole
  132. math

    solve for x AB=24, MB=2x+4

    asked by sarah
  133. English

    I am writing a paper on a farewell to Arms can someone help me find sources on characterization or realism that are found within the novel?

    asked by Christopher
  134. Word Problem Help Please

    The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What

    asked by Linda
  135. Physics

    A truck is stopped for a red light at Ridge Road on Higgins line. At the instant the light turns green, the truck pulls away with a constant acceleration of 3.3 m/s2. A cyclist approaching the truck with a constant velocity of 12.0 m/s is 8.60 m behind the

    asked by Nick
  136. physics

    A rocket blasts off vertically from rest on the launch pad with an upward acceleration of 2.80 . At 30.0 after blastoff, the engines suddenly fail, which means that the force they produce instantly stops.

    asked by mandy
  137. Physics

    A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

    asked by Taylor
  138. Number Systems

    Convert 103 base 10 to base 2,base 8, base 16

    asked by Mike
  139. English (Urgent)

    Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. I need help soon please! Two significant problems in this novel for him is overcoming self blame along with dealing with culturally

    asked by Jake
  140. Math HHEEEELLLLLLLPPPPPP

    Are theese constant Ratios... 1:2:4:8:16, or are theese constant ratios: 1:2 2:4 4:8 8:16 Are they both wrong? If they are, could you give me 2 examples and explain them please? With 2, I should probably be able to come up with my own.:)

    asked by Alice
  141. English Help!!!!

    Could you tell me about a person who dominated the poor and uneducated.

    asked by Tiffany
  142. algebra

    If you enter Interstate 40 at mile marker 23 in Sayre, Oklahoma, how far would you need to travel to reach mile marker 125 in El Reno, Oklahoma? After reaching El Reno, you might worry that your vehicle is running low on fuel. You know that your vehicle

    asked by hannah
  143. Physics

    is force and normal force the same thing? if not what is the difference. for instancee if a problem said given a force of 20 newtons. would normal force be 20 newtons? please answer !!!!!!!!!

    asked by Tina
  144. Spanish 9th grade

    Is this how I say the spider is smaller than the lizard? La araña es más pequeña que la iguana.

    asked by Jeff
  145. chem

    2H2(g)+ O2(g) --> 2H2O(L) I know the oxidizing agent is oxygen and the reducing agent is hydrogen. what are the number of electrons transferred in the balanced chemical equation? (I put 2 and tried -2 but it didn't seem right)

    asked by tami
  146. early childhood education

    which of the fllowing is most likely to be a result of a school age child left unattended at home a)obesity b)lost of friendship c)psychological harm d)inability to complete homework assignments my answers is a

    asked by eustace
  147. Physics

    A mass of 5.6 kg lies at the top of a frictionless incline. It is inclined at an angle such that the normal force on the mass is 30 Newtons. If the length of the incline is 58 meters and the mass is originally at rest at the top of the incline and then

    asked by Tina
  148. Physics

    A mass of 8 kg lies on a horizontal, frictionless floor. A force of 72 Newtons pushes to the left (negative x direction) with a force of 72 Newtons. Another force of unknown magnitude pushes the mass in a direction of 21.4 degrees above the positive x

    asked by Tina
  149. Statistics

    A national survey of small businesses reports that 70% of all small businesses now have a web-site. Assume that for a randomly selected group of 30 small businesses, the number with a web-site has a binomial distribution. In a random sample of 30 small

    asked by Miranda
  150. Government US

    Marx argued that a free-market system is exploitative because a. workers’ wages are lower than the value they add to production. b. consumers pay higher prices for goods than it costs to produce them. c. all private transactions are inherently unjust. d.

    asked by HM
  151. social studies-Amrican History

    The studentwill describe the reasons, successes and failures of Englands first attempts to start colonies in North America.

    asked by Alice
  152. calculus

    Water is leaking out of an inverted conical tank at a rate of 1600.0 cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height 10.0 meters and the diameter at the top is 3.5 meters. If the

    asked by neil
  153. Pre-Calculus-Please check

    Please check: 1.Find polar equation of x^2 + y^2 = 10y subbed r^2 for x^2 + y^2 and sin(theta sin for y =r^2=10sin(theta) 2. y=5 r=5/sin 3. x^2+y^2 =x^2 + y^2 =2x+3y

    asked by Tonya
  154. Satistics

    5. Give the standard deviation for the mean and median column. Compare these and be sure to identify which has the least variability? Standard deviation of Mean = 0.476169 Standard deviation of Median = 0.753937

    asked by Hope
  155. Enegry

    Are there ways to have more enegry. You see during second period yesterday like during gym we were during war ups (ugh I HATE THE WAR UPS) ans when I was running, & skipping I felt so tired & losing enegry so is there any ways I can have MORE MORE MORE

    asked by Laruen
  156. math

    Two twin brothers each have two favorite sweat shirts that they wear every other day. One day, dad decides that all four sweat shirts need to be washed! He takes all four shirts and washes and dries each. After washing the shirts, he cannot tell which

    asked by MATH HELP PLEASE
  157. calculus

    Find the domain of 2x^3-5 divided by x^2+x-6

    asked by Anonymous
  158. Algebra 2 (Diophantine Equations)

    Find all positive integer solutions for 13x + 9y = 190 using Diophantine equations.

    asked by Peter
  159. math

    multiply and combine like terms 5(3x-2y) - (x+6y)

    asked by Loe
  160. English

    I just wanted to know if it is better to include "the" or not in How was (the) Eizabethan theatre structured. Here are other questions I'd like yout to check. 1) When and where did the Aesthetic Movement originate? Describe how the aesthetes lived and what

    asked by Henry2
  161. Math

    I Don't Know What Is This Subject Called In English But It's About Complex Numbers it says 25 = 16 - 9 i^2 = (4 ± 3i) But My Teacher Says 25 = 25 - 0 i^2 = (5 ± 0i) I Think My Teacher Is Wrong , The Result Is 25 But There Will Not Be Complex Number

    asked by Jack
  162. Federal Reserve System

    I read this on Wikipedia.. The Federal Reserve System is a part of government that regulates the private banks And I am stuck at this question. The Federal Reserve System c. regulates only national banks. e. None of these answers is correct.

    asked by HM
  163. science

    list three ways in witch finding the main idea(s) can help you understand scientific articles.

    asked by trent
  164. Physical Science

    Can someone please help me with this question Im not really sure what the question is asking, I don't understand at all. Please explain. With sound, you get harmony when the frequencies of two sounds are in the ratios of small integers - eg, two sounds

    asked by Allison
  165. Algebra

    how do i solve 3x +8 > 2

    asked by Susan
  166. social studies

    Ms. Sue I thought you were helping me yesterday...I still need some help the information you give me I have been typing up as notes so i can print them and then study them.

    asked by anonymous
  167. pre cal

    Find f of g of h and state the exact domain. f(x) = sqrt x g(x)= e^x - 13e^x/2 + 42 h(x) = 2x I need help on this one bad! Please help!

    asked by Anonymous
  168. math

    How many factors does 7^11*19^6*79^23 have?

    asked by christy
  169. math

    Two digits of this number were erased: 273*49*5. However, we know that 9 and 11 divide the number. What is it?

    asked by christy
  170. geometry

    Tim and Beck have a model of a car which they want to duplicate. Tim uses a compass and straightedge to take exact measurements to make a replica. Beck makes the model freehand without the use of tools.

    asked by Anonymous
  171. Spanish

    Please check my questions I had to answer-1.¿Cómo es tu animale favorito? Mi animale favorito es le cabello. 2. ¿Es la araña mejor o peor que el mosquito? La araña es más peor que el mosquito. 3. ¿Son los venados más rapidos or más lentos que los

    asked by Juliette
  172. Math

    Lilly wrote the equation below to demonstrate the commutative property. (2+3)+(3+4)=(3+4)+(2+3) Does her equation demostrate the commutative property?Explain why or why not.

    asked by Keri
  173. MATH QUIZ

    Round each number to the underlined place value. 1. 15.6571 --> the underlined word is 5 2.

    asked by Brooke
  174. math

    kenneth has 22 math problems to do for homeworks he has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?

    asked by wonderer
  175. MATH QUIZ

    Round each number to the underlined place value. 1.) 15.6571 -->5 is underlined 2.) 0.8914 -->1 is underlined 3.) 7,022.56 -->3 is underlined 4.) 345.678 -->6 is underlined Estimate. 5.) 3.7 · 8.06 about 32 about 27 about 12 about 24 6.) 17.25 + 6.66

    asked by Brooke
  176. geometry

    find the area of the sector with 80 degree angle and radius=8

    asked by sita
  177. Women in Society

    How does the way a society treats and regards its women affect the way outsiders perceive that society? How do you think cinema - and other forms of pop culture and mass media - affect that perception?

    asked by Ana
  178. Math

    In how many different ways may the four officers be seated?

    asked by Ricky
  179. website

    i need a wedsite to help me dengin a moldol of a simple machine for a proget any ideas

    asked by sam
  180. English

    I still have some doubts and a few sentences to check I can't understand. Can you help me? 1) How was Elizabethan theatre structured? 2) Do you say "correcting fluid" or corrector fluid? 3) Student's card OR student card. I also need to check these

    asked by Henry2
  181. Spanish

    Please check my questions I had to answer-I'm not sure about number one and I really don't understand number 3 1.¿Como es tu animale favorito? Mi animale favorito es le cabello. 2. ¿Es la araña mejor o peor que el mosquito? La araña es más peor que el

    asked by Juliette
  182. physics.pls help

    How do you know what element is chemically active on the periodic table? PLS HELP

    asked by ted
  183. Chemistry

    I just cant seem to figure out how to get the pH of an acid or base using the ion product of water. A.[H3O+}= 5.6x10ee-3

    asked by Anonymous
  184. Calculus

    If any body can solve this I would be greatly appreciative. I spent an hour in the tutoring center and no one could solve. Here goes: A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight toward the building at a

    asked by Linda
  185. Pre-Calculus

    Please check: 1.Find polar equation of x^2 + y^2 = 10y r^2 for x^2 + y^2 and sin(theta sin for y =r^2=10sin(theta) 2. y=5 r=5/sin 3. x^2+y^2 =x^2 + y^2 =2x+3y

    asked by Tonya
  186. algebra

    the width of a rectagle is fixed at 4cm. For what lengths will the area be less than 86cm2

    asked by stephanie
  187. physics 12

    a 1kg satellite has an orbital period of 4 hours. what's the altitude?

    asked by wesley
  188. early childhood education

    voters have been historically nwilling to underwrite a school age child care system because a)they werent voting because they didn't have time b)two parents staying at home seemed to be a much better idea c)they believe that child care was responibility of

    asked by Dionne
  189. math

    if f(x)=9-x^2 and g(x)=x^2+4, find (g o f)(x) and (f o g)(x)

    asked by Anonymous
  190. Algebra 2 (Linear Programming)

    Part A requires 4 hours per unit on a lathe and 3 hours per unit on a milling machine. Part B requires 2 hours per unit on a lathe and 5 hours per unit on a milling machine. 52 hours are available on the lathe and 60 hours are available on the milling

    asked by Peter
  191. AP macroeconomics

    Ok, I have a question. There is a production possibilities frontier graph (it's linear) labeled with 2 products that can be made on the axes for 2 sets of data regarding each person (rancher and farmer.) A point is labeled in the middle of the line of data

    asked by joseph
  192. chemistry 12

    Calculate [H3O+] and [OH-] in 0.18M hydrobromic acid, HOBr(aq), having a K of 2.0x10^-9? I got 9.0x10^-8

    asked by Jacob
  193. statistics

    Nownes (2000) surveyed representatives of interest groups who were registered as lobbyists of three U.S. state legislatures. One of the issues he studied was whether interest groups are in competition with each other. Table 1?10 shows the results for one

    asked by fuzzie530
  194. history

    When were hunter gatherers around in america? why and when(a date or range would be great) did they settle down?

    asked by hannah
  195. social

    about Sam Huston

    asked by laxi
  196. GCC

    I need to summerize a research paper that is mainly made up of quotes. How do I summerize it when is consist of quoting a quote. How do I structure my paper when the person that wrote the paper has so many quote. I hope this makes sense? Is there a way to

    asked by jesse
  197. USA PoliScience

    In forming Medicare, a. President Johnson allowed conservatives to propose a program, knowing it would ensure passage by Congress. > This is probably not correct because congress was never so easy. b. President Johnson resisted some Democratic urging to

    asked by HM
  198. chemistry

    Suggest a solvent pair for N-Bromosuccinimide using the following solubility data. Solubility of N-Bromosuccinimide (g/100g of solvent) Tert-butanol 0.73 Hexane 0.006 Glacial acetic acid 3.10 Acetone 14.40 Carbon tetrachloride 0.02

    asked by Anonymous
  199. holley redemer

    restate the sentence Annually, millions of animals suffer and die in painful tests in order to determine the safety of cosmetics.

    asked by jess
  200. spanish

    why are these incorrect? 1. Su novio no gusta los niños. 2. Este profesor dijo a nosotros que el ejercicio no es bien. 3. Tu éxito depende en el esfuerzo que pongas. 4. He esperado por mi hermana durante horas. 5. No puedo entrar la casa.

    asked by Corrine
  201. Math Help

    Express in scientific notation: 198,400,000,000

    asked by Katie A
  202. science

    What I can include in a science brochure for a trip to Mars to sound more attractive?

    asked by ramy
  203. chemistry

    how many grams of naOH must be dissolved to a total volume of 800 mL, if the desired molarity is 0.200 molar?

    asked by vee
  204. English

    Hi, I have to write a 2 page paper about the book No-No Boy, rather than give a plot summary the teacher wants us to discuss important themes. What are some possible topics I could write about and how do I not make the paper turn into a plot summary?

    asked by Jake
  205. Finance

    John deposited $1000 on 1st January 2011 in an account paying interest of 12% per annum compounded quaterly. He also deposited $800 (on 1st January 2011) in another account which pays 15% per annum effective interest. Find the time(n) when the two accounts

    asked by Krishneel
  206. chemistry

    what are the phases of all the reactants and products in the reaction 2Al + Fe2O3--->2Fe + Al2O3?

    asked by bethany
  207. physics

    Two workers pull horizontally on a heavy box, but one pulls twice as hard as the other. The larger pull is directed at 25.0 west of north, and the resultant of these two pulls is 560.0 directly northward.

    asked by Anonymous
  208. Calculus

    Find the equation of the tangent line to the curve below at point (0,3) y=6/(1+e^-x)

    asked by Ashley
  209. algebra

    i cant figure this out 16 / (10-(9-8) x 6) i got 9-8 = 1 x6 = 6 10 -6 = 4 16 /4 = 4 is that right?

    asked by Marko
  210. Math

    On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters, where would she be relative to sea level if she started at 0?

    asked by Jacob
  211. Physical Science

    What is the frequency of electromagnetic radiation that has the same wavelength as the sound waves of middle C on a piano? A) 1.1 x108 Hz B) 2.2 x108 Hz C) 4.4 x108 Hz (my answer am I correct) D) 6.6 x108 Hz

    asked by Anonymous
  212. Math

    On Friday, Jan hiked in the woods. If she hiked a vertical distance of 60 meters relative to sea level and then down 86 meters, where would she be relative to sea level if she started at 0?

    asked by Jacob
  213. Psychology

    I have to examine at least two mental disorders and two mental illnesses from the perspective of psychology. Do you know of any sites that can help me with this. Thank you.

    asked by Nancy
  214. math

    Marie used base-ten blocks to model 328 she used 3 hundreds, 2 tens, and 8 ones. for what could you trade one of the tens?

    asked by amor
  215. prealgebra

    In solving this equation (x+3)(x-3)=-8 is the answer x+3=-8=>x=-11 if not why?

    asked by kim
  216. math (please help)

    Let r= 3-3 sin θ How do I test for symmetry θ = π/2?

    asked by Angie
  217. Algebra word problem/Splitting the Cost

    The cost of renting a bus to go snowboarding was split evenly by the 20 students planning to go. The day before the trip, 10 more students decided to go. Dividing the cost evenly among all 30 students brought the average cost down by $9.00 per person. What

    asked by Linda
  218. biology

    plzzzz,write differences between vegetative propagation and artificial vegetative propagation.(at least five)

    asked by Sweety
  219. math

    a+3a=36

    asked by nat
  220. USA PoliScience

    36. The Federal Reserve System c. regulates only national banks. e. None of these answers is correct. I am confused between my last two choices.

    asked by HM
  221. Calculus

    Solve for x. Don't do the work using algebra and don't use a calculator. The Laws of Logarithms will be helpful. ln(x^2 - 1)= 3

    asked by Angel
  222. Math

    Students are given three chances to pass a basic skills exam for permission to enrol in Calculus. Sixty percent of the students pass on the first try, of those that fail on the first try, fifty four percent pass on the second try, and of those remaining,

    asked by Anonymous
  223. Hard math

    Solve for x using the laws of logarithms. ln(ln x)= 1

    asked by Christina
  224. Algebra

    What isthe focus of the parabola y = (1/8)(x – 5)^2 - 3

    asked by Alexis
  225. geometry

    Out of the word Tennessee 9 pieces of paper with each letter of the word written on it are put into a hat. What is the probability that that letter T or N is selected?

    asked by Diane
  226. math

    6 people, one-half of the students arrive at school early, one-fourth of the students arrived on time, and one-eighth of the students arrived late. how many students were absent?

    asked by labrea
  227. reading

    what sentence can i write using the words audience and menorah

    asked by jennifer white
  228. statistics

    what is the inter quartile range of a set of numbers adding to to 76

    asked by regina
  229. geometry

    how do we know 7,4,5 are the sides of triangle

    asked by michael
  230. English

    Hi I'm writing an essay about No-No Boy. Does the following sentence sound alright, if not how do I make it sound better. Two significant problems in this novel for him is overcoming self blame along with dealing with culturally assimilating himself to

    asked by Jake
  231. math

    does 13 go into 60?

    asked by drea
  232. English Literature

    In Macbeth there are 3 main themes: Gender, The Supernatural, and Ambition. What are 5 examples of each?

    asked by Jacklyn
  233. SCIENCE

    NEED HELP WITH EXAMPLES IN SCIENCE

    asked by BONNIE
  234. Physics

    a crate slides down a frictionless ramp with an angle of 29.5 above the horizontal. find the acceleration of the crate.

    asked by Stephanie
  235. nglish

    can you please give me some tips on how to start a interview.In a interesting way that will appeal the readers and to keep them entertained. THANK YOU

    asked by Anonymous
  236. USA PoliScience - HELP FAST

    When the Fed was created in 1913, a. it had no role in the management of the nation's economy. b. it was restricted to providing emergency loans to financial institutions. c. it adhered to a strictly supply-side policy focus. d. its primary economic

    asked by HM
  237. math

    I have a question that is asking me "How many factors does each of the following numbers have? 12^4=

    asked by christy
  238. math

    How many factors does each of the following numbers have? 7^3 * 11^3 =

    asked by christy
  239. science

    NEED HELP WITH EXPLANATIONS FOR THE WORD'S EVAPORATION CONDENSATION AN PERCIPITATION PLEASE SOMEONE HELP US

    asked by BONNIE
  240. math algebra 1

    What is the least positive integer that is divisible by all whole numbers from 1 to 9?

    asked by Summone
  241. gtcc

    From 0 degrees to 90 degrees - what is the highest m (slope) value that a passenger train currently carries passengers (worldwide)?

    asked by bp
  242. spanish

    can someone tell me what this means please Esta campana muda en el campanario, esta mitad partida por la mitad, estos besos de Judas, este calvario, este look de presidiario, esta cura de humildad. Este cambio de acera de tus caderas, estas ganas de nada,

    asked by Lydia
  243. to ms.sue

    thanks for answering my questions all the time.you always give me a lot of ideas.write back!see you!

    asked by jennifer white
  244. Writing

    Can you add figurative or tell me where I could add it, check my title, proofread, and help me show creativity? Freedom Doesn’t Come Free What is something you can never show much gratitude for? Well, veterans have done many things for our country.

    asked by Summone
  245. Language

    What are the proper nouns in this sentence? "Vincent Massif is the name of the highest point"

    asked by a
  246. ms.sue

    how old are you?

    asked by jennifer white
  247. Melillo Middle shcool

    I need to work up a 5th grade Explorer recruitment Post for my Sicence class on Sir Frances Drake. an you give me information

    asked by Roxy
  248. literacy

    what are the syllables for the word attentively

    asked by jennifer white
  249. physics

    if a car can accelerate at 6m/s2, how fast can it accelerate if it is towin an identical car behind it?

    asked by Erica
  250. MATH

    Consider an amortized loan of $10,000 ( with 10.0% interest compounded monthly) paid back over two yrs in equal, monthly installments. For each of the first two months, calculate three things: the interest paid for the month, the amound of the principal

    asked by Julian
  251. Social Studies 9

    18th century france propose some reasons why women were unable to keep leadership positions during the reign of terror and its aftermath. HELP I NEED IT BY TOMORROW!!!

    asked by Stephanie
  252. Physics

    Show that there is no Brewster’s angle for s polarization.

    asked by Bob
  253. Math

    explore the significance of the coefficient "a" in determining the shape of the graph of y=a|x|.[

    asked by Devin
  254. Physics

    what equation would I use to find the magnitude of the mass's velocity?

    asked by Tina
  255. physics

    from what height should you drop your physics textbook so that it takes 0.2 seconds for it to fall? ftom what height would you drop a baseball so it takes 0.2 seconds for it to fall?

    asked by m kay
  256. G-Chem

    How man grams of Fe+3 are required to make 1.0L of an aqueous solution of 10 ppm Fe+3: (Assume the densit of water is 1.00g/mL)

    asked by Margaret
  257. Physics

    Show that there is no Brewster’s angle for s polarization.

    asked by Bob
  258. chemistry

    calculate the debroglie wave length for each of the following a. the proton with the velocity of 75 percent of the speed of light.

    asked by Rebecca
  259. PHI103 Informal Logic

    construct three different arguments that display distinct fallacies. Give an explanation of why each makes a mistake in drawing the conclusion it does. Review your classmates’ examples and see if they, in fact, commit the fallacy identified.

    asked by leslie
  260. Math

    The population, P (in thousands), of a town can be modeled by P= 2|t-6|+4, where t=0 represents 1990. During which two years does the town have a population of 8000? Can someone show me the steps to this problem?

    asked by Cassie
  261. Linear Algebra

    Find the inverse of the matrices if they exist. Use the algorithm introduced in this section. 1 2 -1 -4 -7 3 -2 -6 4

    asked by Allan
  262. Psychology

    Do know of any scholarly websites that discusses confronting a difficult coworkers who are chronic complainers?

    asked by Sharon
  263. health care

    what is the relationship between levels of confidence and statistical significance?

    asked by confused! :(
  264. Physics

    A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed at an angle of 62° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

    asked by Taylor
  265. Socials

    Definitions... Militarism: The belief that the military is the answer to problems a nation has. Alliance: Relationship between states. Balance of power: Sharing of power that no single nation can control or mess about with. Dreadnought: Largest battleship

    asked by Mysterious
  266. Exchange Rates Help

    Hello, How do you know if the Canadian dollar is rising or falling relative to the US dollar? Is 0.95 CAD/USD good or bad? Thanks very much for your help.

    asked by Anonymous
  267. physics 12

    A satellite has an orbital period of 4 hours. what is the altitude? thanks.

    asked by wesley
  268. biology

    depict the following dilutions series: 1:4 1:16 1:64 IN A FINAL VOLUME OF 200ML

    asked by shaknocka
  269. math

    express 55 minutes as a frcation of 1 1/3 hours

    asked by Karen
  270. COM/107

    WORD PARAGRAPH ON EMOTIONS TO DESCRIBE THE IMPORTANCE OF PURPOSE, AUDEIENCE, TONE AND CONTENT IN ACADEMIN WRITING.

    asked by Montoya
  271. history

    s how many archers were used during war of the spartans?

    asked by joye
  272. Pre-Cal

    how do you find the vertex using two points, when no equation is given and neither points are the vertex? what formula can i use to find it?

    asked by Steph
  273. English

    Could you please check these sentences (the various alternatives). Thank you very much. 1) "I didn’t give him my password,” she said. 11) “Shall I wrap the chocolate for you?”, the shop assistant asked me. 2) She denied giving him her password. She

    asked by Henry2
  274. health care

    can anyony=ted question? pose help with my previous

    asked by confused! :( any one there?
  275. Number systems

    Convert 103 base to base 8 & and base 16

    asked by Mike
  276. physics

    number of pickup trucks and the number of points.What goes on the x axis

    asked by Anonymous
  277. science project

    abbreviation for HOT

    asked by sandy
  278. calculus

    if f(x)=25-x^2 and g(x)=5-x, what is the rule for the function (f-g)(x)?

    asked by Anonymous
  279. English

    I left out one more thing. 1) I have a doubt: How is Elizabethan theatre structured (or the Elizabethan theatre) structured?

    asked by Henry2
  280. chemistry

    can someone please show me the steps of setting up the emirical formula for NaN3

    asked by cheryl
  281. Exchange Rates Help

    What are some possible explanations for the differences between the Canadian and American prices of identical items?

    asked by Anonymous
  282. math

    How do I solve this problem- how many 2/3 x 3 inch slices can I get out of eight 12 x 6 inch cakes?

    asked by Debbie
  283. Chemistry

    would you expect calcium to have a higher or lower boiling point than potassium

    asked by Anonymous
  284. algebra

    what are rational expressions? Why must we always be mindful of the final value of the denominator in a rational expression? For example, consider the rational expression 3x/(x2 – 16). What values in the denominator must we be mindful of? Explain why.

    asked by thresea
  285. Chemistry

    Find the standard entropy (S^0) of ice at 25K. delta Hfus = 6009 J/mol and Cp of ice = 38 J/molK.

    asked by Jessica
  286. Algebra 2

    At a county fair, adults' tickets sold for $5.50, senior citizens' tickets for $4.00, and children's tickets for $1.50. On the opening day, the number of children's and senior's tickets sold was 30 more than half of the number of adults' tickets sold. the

    asked by Peter
  287. calculus

    Water is leaking out of an inverted conical tank at a rate of cubic centimeters per min at the same time that water is being pumped into the tank at a constant rate. The tank has height meters and the diameter at the top is meters. If the water level is

    asked by neil
  288. Social Studies-Amrican History

    Descibe the factors that led to the founding of the colonies such as the escape from religous pesecution, economic oppertunity, release from prison and military adventure Know any good sites???

    asked by Alice
  289. Language arts

    Is "white as a ghost" an idiom?

    asked by Aaron
  290. s.s

    how does gps works

    asked by tom
  291. literacy

    attentively, is it: A.a\tten\tive\ly B.a\ttent\ive\ly or any other

    asked by jennifer white
  292. math

    got 23 out of 50 where worth is 50, if the final exam is out of 77, how many ,marks need to score to get 50

    asked by Anonymous
  293. AP English

    What kind of effects do extended metaphors, or conceits have on readers? I know it can help to keep a readers attention, and develop the idea.

    asked by Lisa
  294. physics

    if i am pulling a wagon full of puppies that are in dynamic equilibrium must be the net force on the puppies

    asked by samir
  295. Arts and Science of quality of Learning

    How to write a objective question

    asked by Patricia
  296. Physics

    how do you find the magnitude of the mass's velocity?

    asked by Tina
  297. subtract with decimal

    $546.00 / 10.50 = I am not sure how to do steps in long division with decimal can you show me?

    asked by Marko
  298. culinary arts

    _________________ is an uncooked mixture of equal parts butter and flour, used as a thicking agent.

    asked by Michelle
  299. compatable numbers

    use compatable numbers to estimate the answers to the following 2 problems. show work 21.98 / 2.56 28.56 / 6.95

    asked by Marko
  300. culinary arts

    a(n) ___ is a uniform mixtue of two unmixable sustances.

    asked by Michelle
  301. culinary arts

    ______ is a cold, uncooked Spanish soup made of pureed raw vegetables.

    asked by Michelle
  302. spanish

    what is the difference gramtically between these two sentences Necesitamos sillas más cómodas. Se necesitan sillas más cómodas.

    asked by Julia
  303. Chem

    Name the industrial process in the air separation plant that can be obtain oxygen from liquefied air.

    asked by Nicole
  304. Chem

    State the hazard warning label that should be shown on a jar of oxygen.

    asked by Nicole
  305. science

    If a ball rolls North 5 meters in 2 seconds, what is its speed?

    asked by Gwinn
  306. Math

    Simplify (2/3)^4

    asked by Loe
  307. chemistry

    How many moles of sodium bicarbonate are contained in 1mL of a saturated solution of NaHCO3 (approximately 1g of solute is dissolved per 9mL solution)?

    asked by Tiffany
  308. grammar

    need to know some examples for the nominative comparative and superlative of irregular words apart from good better best , bad worse worst and little less least

    asked by sara
  309. English

    Which of the following would be an example of an emotional appeal that is part of a persuasive message? A. Written agreement are binding. B. There is reliance on nonverbal signs to communicate. C. Oral agreements are not binding. D. There is a preference

    asked by Donna
  310. question

    But critical writing like argumentative essays have structure. (can you tell me what is wrong with this message?)

    asked by tim
  311. American Government

    Which is true regarding the nation’s environmental policy? a. The first major steps by the national government to clean up the environment began in the early 1900s. b. A majority of the public is sympathetic to environmentalism. I would say B is the

    asked by HM