1. physics homework

    You throw a 20 N rock into the air from ground level and observe that when it is 1 5.0 M high, it is traveling upward at 25.0 m/s. Use the work energy principle to find (a) the rock’s speed just as it left the ground and (b) the maximum height the rock

    asked by samantha on February 23, 2013
  2. math

    A ski resort has 3 chair lifts, each with access to 6 ski trails. Explain how you can find the number of possible outcomes when choosing a chair lift and a ski trail without making a list, a tree diagram, or table.

    asked by Anonymous on March 9, 2016
  3. Business Math

    3.) The demand equation for a certain product is q=500-40p+p^2 where p is the price per unit (in dollars) and q is the quantity of units demanded (in thousands). Find the point elasticity of demand when p = 15. If this price of 15 is increased by ½%,

    asked by pypski on December 14, 2016
  4. MATH- HELP PLEASE. IM LOST

    Given one side of a golden rectangle is 3.7 inches, find the possible lengths of the other side. Notice that the other side can be either longer or shorter than 3.7 inches. Round your answers to the nearest tenth and useGreek Phi normal.svg=1.618.

    asked by Bobby Jackson on May 1, 2016
  5. physics

    A 47.5-turn circular coil of radius 5.15 cm can be oriented in any direction in a uniform magnetic field having a magnitude of 0.490 T. If the coil carries a current of 22.9 mA, find the magnitude of the maximum possible torque exerted on the coil.

    asked by wazir on March 20, 2015
  6. Physics

    A uniform ladder 10.0m long and weighing 50.0N rests against a smooth vertical wall. If the ladder is just on the verge of slipping when it makes a 50 degree angle with the ground, find the coefficient of static friction between the ladder and ground.

    asked by CM on October 24, 2012
  7. math - surface area and volume

    A cylindrical bucket with base 15 cm with water upto a height of 20 cm a heavy iron spherical ball of radius 9cm is drop into the bucket to submerge completely in the water. Find the incrrase in the level of water.

    asked by s.yashraj on January 31, 2016
  8. Calculus

    Marginal Cost Businesses can buy multiple licenses for data compression software at a total cost of approximately C(x) = 96x2/3 dollars for x licenses. Find the derivative of this cost function at the following values x=8 and x=64 I do not know where to

    asked by Sarah on February 5, 2013
  9. Calculus - Volume by Integration

    Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the y-axis: y=(x-2)^3-2, x=0, y=25 (a)solve by either the disk or washer method (b)solve by the shell method (c)state which method is easiest to

    asked by Nicole on November 24, 2013
  10. Physics

    A ball is fastened to one en of a 28 cm string, and the other end is held fixed to a support. The ball whirls in a horizontal circle. Find the speed of the ball in its circular path if the string makes an angle of 35 degrees to the vertical.

    asked by Andrea on May 16, 2013
  11. ap physics

    The acceleration due to gravity on the moon has a magnitude of 1.62 m/s. deal with a placekicker kicking a football. Assume that the ball is kicked on the moon instead of on the earth. Find (a) the maximum height H and (b) the range that the ball would

    asked by Anonymous on November 8, 2015
  12. Chemistry

    Glycine,C2H502N, is important for biological energy.Find the heat of combustion deltaHrxn. Delta H [C2H5O2N]=-537.3 kj/mol DeltaH [ CO2(g)=-393.5 kj/mol DeltaH[H2O(l)]-285.8 kj/mol

    asked by Nicole on November 15, 2011
  13. Physics

    A 30-N non-uniform pole, 5m long, was used to carry a load of 400 N by two men. The load was hung at the middle of the pole. Find the center of gravity of the pole if the force exerted by each man on each end were 220 N and 210 N respectively.

    asked by Julie on July 19, 2015
  14. Physics

    A youngster shoots a bottle cap up a 15.0° inclined board at 1.92 m/s. The cap slides in a straight line, slowing to 0.95 m/s after traveling some distance. If the coefficient of kinetic friction is 0.35, find that distance. I'm never sure which equation

    asked by Lindsay on December 3, 2007
  15. Physics

    The spin-drier of a washing machine slows down uniformly from 700 rpm (revolutions per minute) to 140 rpm while making 50 revolutions. Find the angular acceleration through these 50 revolutions. Express your answer in rad/s^2.

    asked by Anonymous on July 28, 2015
  16. PHYSICS URGENT

    While flying at an altitude of 7.25 km, you look out the window at various objects on the ground. If your ability to distinguish two objects is limited only by diffraction, find the smallest separation between two objects on the ground that you can resolve

    asked by Kent on October 15, 2015
  17. Physics

    A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to

    asked by Jessica on February 20, 2012
  18. Statistics

    Dear Lee, Please confirm these answers to this question. your medical terminology instructor listed the following grades for the class out of a 75 point test: 33,34,43,45,45,54,55,59,60,62,64,66,67,68,67,68,68,69,70,70 a.find the 90th percentile b. your

    asked by Ben on November 3, 2013
  19. Calculus I

    y = x^3 - 8x^2 + 6x -2 has a slope of 6 at two points, what are the coordinates? I did the power rule to derive the equation: y'= 3x^2 - 8x + 6 , and then I tried to factor it to find the x intercepts but it doesn't work. But anyway, my point of confusion

    asked by Angie on October 10, 2016
  20. calculus

    A plane flying horizontally at an altitude of 1 mi and a speed of 560 mi/h passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it is 2 mi away from the station. (Round your answer to

    asked by Anonymous on October 2, 2012
  21. trig

    A woman standing on a hill sees a flagpole that she knows is 65 ft tall. The angle of depression to the bottom of the pole is 14°, and the angle of elevation to the top of the pole is 18°. Find her distance x from the pole. (Round your answer to one

    asked by Dominic on September 21, 2011
  22. maths

    An aircraft dropped a box of emergency supplies to a group of trampers. The height of the box above the ground, h, at time, t is given by the formula; h = 520 - 5t^2, where h is in metres and t is in seconds. Find how long it takes for the box to fall to

    asked by Shane on May 26, 2014
  23. Physics

    A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to

    asked by Jessica on February 20, 2012
  24. physics

    a baseball is batted with a speed of 120 ft/sec at an angle of 37 degrees with the ground. find how long the ball is in the air, how high the ball goes, how far from the plate it is caught, and the components of the velocity of the ball 4 sec after it is

    asked by kim on September 21, 2016
  25. calculus

    Show that tan^3(x)-8(tan^2(x))+17(tan(x)0-8 = 0 has a root in [0.5, 0.6]. Apply the Bisection Method twice to find an interval of length 0.025 containing this root. I have NO idea where to go with that equals 0 part...I could figure it without it but that

    asked by terra on October 24, 2011
  26. Math

    You come home after dark, and porch light is out. You cannot tell which key opens the door.. you randomly try the 5 keys on your ring, 2 keys open your door. Draw a tree diagram for the experiment & Find the probability of opening the door on the first or

    asked by Angie on November 24, 2012
  27. Algebra

    A word processing station was purchased by a company for $10,000. After 4 years it is estimated that the value of the station will be $4000. If the value in dollars V and the time the station has been in use t are related by a linear equation, find the

    asked by Jesus T. on September 12, 2007
  28. Math

    A ball is thrown straight up from the top of a building 148 ft. tall with an initial velocity of 72 ft per second. The distance s(t) (in feet) of the ball from the ground is given by s(t) = 148 + 72t − 16t2. Find the maximum height attained by the ball.

    asked by Reagan on July 12, 2015
  29. math

    Sighting the top of a building, a surveyor measured the angle of elevation to be 60°. The measurement is taken 200 feet from the building. Find the building’s height. Express your answer in terms of feet and then round to two decimal places

    asked by sean on February 23, 2014
  30. Calculus II

    A cylindrical tank of r=5 and h=9 is 2/3 filled with a liquid with density [rho]lb/ft^3. Find the Work required to pump liquid over the rim. The main thing I need help with is finding the y-value at which the tank is 2/3 full. Assume the bottom point of

    asked by RuggedChild on February 24, 2009
  31. Math

    If a cubic foot of water weighs approximately 62.5 pounds, find the weight of the water in a swimming pool which is 16 yards long and 12 yards wide with water to a depth of 7 feet. Answer to the nearest ton.

    asked by Jon on August 23, 2010
  32. math

    ) A chord AB of length 13cm is drawn in a circle centre O at a distance of 5cm from O. Find the radius of the circle. Stop at 1 d.p.(b) TA and TB are tangents to a circle centre O. TOC is a straight line and

    asked by bliss on September 8, 2016
  33. Physics

    A rifle aimed horizontally at a target fired a bullet which lands 2 cm below the aim point. If the rifle was 25 m away find a) the flight time and b) the velocity with which the bullet left the rifle. I would first have to convert the 2 cm into m but what

    asked by nix on November 2, 2006
  34. Physics

    A car of mass 1490 kg traveling at 22 m/s is at the foot of a hill that rises 115 m in 3.2 km. At the top of the hill, the speed of the car is 12 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses.

    asked by Jennifer on March 5, 2015
  35. physics

    2. a body of mass 20kg is released from rest t the top of a rough slope which is inclined at 30 degrees to the horizontal.six seconds later the body has a velocity of 21 m.s down the slope. find the resistance to motion in newtons experienced by the body?

    asked by janell on April 25, 2011
  36. Add math

    George has planted several types of vegetables for his own consumption on an empty rectangular plot of land beside his house. He wants to fence the land as a dimension of (12x)m and (4-x)m. Find the length, in m of the fence he has to buy when the area of

    asked by Michele on January 2, 2017
  37. physics

    A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.70 s. Find the minimum coefficient of friction necessary to allow the penny to

    asked by Anonymous on February 23, 2014
  38. maths

    An aircraft dropped a box of emergency supplies to a group of trampers. The height of the box above the ground, h, at time, t, is given by the formula: h = 520 - 5t^2 , where h is in metres and t is in seconds. Find how long it takes for the box to fall to

    asked by Shane on May 19, 2014
  39. Physics

    A bullet of mass kg moving at 500 m⁄s embeds itself in a large, fixed piece of wood and travels 6 cm before coming to rest. Assuming that the deceleration of the bullet is constant, find the force exerted by the wood on the bullet.

    asked by Chrxeyshthoufov on February 23, 2014
  40. tangential acceleration??

    An ultracentrifuge accelerates from rest to 100,000 rpm in 2.00 min. What is the tangential acceleration of a point 9.50 cm from the axis of rotation? Your answer should be given in m/sec squared. Tangential acceleration = angular acceleration * radius How

    asked by anonymous on September 13, 2017
  41. physics

    Find the Magnitude of the force exerted by each cable to support the 625 N punching bag. One cable is connected to the ceiling with an angle of 37 degrees and the other cable is connected perpendicular to the side wall (Horizontal). HELPP

    asked by kacey on August 9, 2012
  42. math

    The average resting heart rate of a population is 89 beats per minute, with a standard deviation of 13 bpm. Find the z-scores that correspond to each of the following heart rates. Round your answers to the nearest hundredth, if necessary. (a) 95 bpm Z= (b)

    asked by john on November 30, 2015
  43. trig

    a tower standing on level ground is due north of piont N and due west of point W, a distance 1,500 feet from N. If the angles of elevation of the top of the tower as measured from N and W are 8 and 11, respectively, find the height of the tower.

    asked by courtney on October 9, 2011
  44. physics

    a uniform ladder of mass m and length l leans against fricitonless wall angle theta. If the coefficient of static friction between the ladder and the ground is u, find the formula for the minimun angle such that the ladder won't slip

    asked by ashley on November 30, 2012
  45. calculus

    Beast Mode Question: I am seating in one of the corners of the room when the time was exactly 12:30PM. I was decided to go to the other corner of the room at 12:35. I go outside of the room when the sun was directly ahead of me. Find the inclination of the

    asked by beast mode question on October 4, 2016
  46. Probability and statistics

    The hydrocarbon emissions at idling speed in parts of million (ppm) for automobiles of 1980 and 1990 model years are given for 20 randomly selected cars. 1980 models: 141 359 247 940 882 494 306 210 105 880 200 223 188 940 241 190 300 435 241 380. 1990

    asked by Anna on July 20, 2015
  47. MATHS

    Hi Just checking The area of one face of a cube is 64cm squared What it the total surface area of the cube? DO we do 64 times 6 and the answer is 384 cm cubed? Also it askes what is the volume I do 64 cubed which is 262144 cm cubed ? AM I right ? yes- the

    asked by gt on April 15, 2007
  48. College

    Shantisha Brown SC543-01 Article Critique 1 Mindes, Gayle; Murphy, Kathleen Torina (1982). The Importance of Play and Games in the Middle School Program for Emotionally Disturbed Young Adolescents. Journal of Mental Health Counseling, 31, 131-140. In this

    asked by Shantisha on June 12, 2011
  49. English

    Can you please help me check these sentences. Thank you for your help 1)Robotic planes are useful because they can fit in small places where humans cannot enter and scan areas to find possible survivors. 2) They are quick and small so they can manage to

    asked by Mike1 on April 16, 2011
  50. Pre-Algebra

    9. During the basketball season, Diane took 134 shots and made about 56% of them. a. How many shots did Diane make? b. The team made a total of 498 shots. What percent of the team's made shots did Diane make? A. 24 shots; 15.1% B. 753 shots; 27% C. 240

    asked by Help me! on December 14, 2017
  51. Math Riddle

    In a little town in West Michigan lives a math professor, who hears one day that the barber has three children. So, on the next visit to the barber, the professor casually inquires, "I have heard you have three children, is that right?" "Yes!" says the

    asked by Tyler on September 21, 2007
  52. RE: Account

    Hi. I never posted my work yet. Sorry. Here is the question then my answer which I cannot solve!! I cant balance out the balance sheet.... I have spent 2 days on this... Please help: Prepare a Trial Balance, an Income Statement and a Balance Sheet. Doris'

    asked by Jon on October 21, 2011
  53. Math

    Susan has some $2-coins and $5-coins. If there are 18 coins and the total amount of these coins is not less than $75, find the minimum number of $5-coins.

    asked by Nicole on October 2, 2011
  54. Math

    Find the equation of the tangent line 5x^2+y^2=14 at (1,3). P.S: It's calculus. So far I know this much 10x+2y(dy/dx)=o -10x -10x ___________________ 2y(dy/dx)= -10x (dy/dx)= -10x/2y= -5x/y m= -5(1)/3= -5/3 y=mx+b 3= -5/3(1)+b then what?

    asked by Skye on February 7, 2008
  55. Math

    Find of g(f(x)) when f(x)=sqrt(x+3) and g(x)=(x^2+2)/x. a. g(f(x))=(x^2+2)(sqrt(x+3))/x b. g(f(x))=(x+5)/(sqrt(x+3)) c. g(f(x))=(x^2+6x+11)/(sqrt(x+3)) d. g(f(x))=(sqrt(((x^2+2)/x)+3) Every time I work this problem, I get some crazy answer. Can someone

    asked by Girly Girl on September 22, 2017
  56. math

    ball a weighs 1 1/2 times as much as ball b. find all combinations of ball a and ball b that will be needed to balance 10 ball b?

    asked by Bob-Bob on April 2, 2015
  57. Calculus

    Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞. f(x) = { 2 - x if x ≤ 3 { -1 + 3x - x^2 if x > 3 a) lim 3+ f(x) x->3 b) lim 3- f(x) x->3 c) lim f(x) x->3 d) lim ∞ f(x) x->3 e) lim -∞ f(x) x->3

    asked by Blue on October 8, 2011
  58. Calculus

    Find the indicated limits. If the limit does not exist, so state, or use the symbol + ∞ or - ∞. f(x) = { 2 - x if x ≤ 3 { -1 + 3x - x^2 if x > 3 a) lim 3+ f(x) x->3 b) lim 3- f(x) x->3 c) lim f(x) x->3 d) lim ∞ f(x) x->3 e) lim -∞ f(x) x->3

    asked by Chris on October 9, 2011
  59. Calc

    For z1 = 4cis(7pi/6)and z2 = 3ci(pi/3), find z1 · z2 in rectangular form. A.12 − 12i B.-12 − 12i C.12 + 12i D.12i E.-12i

    asked by Chris on April 29, 2013
  60. Algebra 1

    Two fewer than a number doubled is the same as the number decreased by 38. Find the number. If n is "the number," which equation could be used to solve for the number?

    asked by Monica on October 23, 2012
  61. coefficient

    test using the lead coefficient to find out if y arrow oo, or y arrow-oo as x arrow -oo y=-5x^3+4x^2+6x-7 n is odd -5x^3 an

    asked by Gabe on April 3, 2008
  62. Math

    i can't find these patterns. my mom and dad tried to. first problem 64,__,___,___,32 second problems 61,___, ___, ___, 81

    asked by Jake on September 18, 2008
  63. Spanish

    Write complete sentences to find out about the following people in spanish class. 1. Claudia y yo/estar/ cerca de la puerta? 2. La maestra/estar/contenta? 3. Los estudiantes/estar/ocupados? 4. Tu/estar/ delante de Ana? 5. Yo/estar/detras de Miguel? Can

    asked by London on December 13, 2016
  64. science(chem)

    I'm making different concentrations of ethanol and I just wanted to check my calculations and method. Making ethanol concentrations of: 0.40% 0.30% 0.20% 0.10% 0.05% To make the 0.40% ethanol from stock solution using 100ml volumetric flask: (xg

    asked by ~christina~ on October 1, 2008
  65. Literature

    I have to write an expository essay on Phoebe Winterbottom, from Walk Two Moons, analyzing her character. This is what I have: Pheobe Winterbottom is a nervous girl who receives mysterious messages, meets a “lunatic”, and whose mother goes away in the

    asked by mysterychicken on October 16, 2009
  66. Maths

    Consider the Ferris wheel above. It has an axle standing 38m off the ground and a radius of 35m. The wheel takes 5 minutes to complete one revolution. The wheel moves in clockwise motion and you are sitting in one of the carriages which are horizontally in

    asked by Emad on May 3, 2012
  67. Economics for Manager

    Hello, Could someone please help me find the answer to this question: The two largest diner chains in Kansas compete for weekday breakfast consumers. The two chains, Golden Inn and Village Diner, each offer weekday breakfast customer a “breakfast club”

    asked by Daniel on December 7, 2010
  68. Ap World History

    This is my teachers first year teaching this class. So... I'm not the only one who has a D in that class. I was wondering if some one can please give me some advice here on this class. I'm not exactly sure how to approach this class. A couple of days ago

    asked by Ap World History on December 7, 2008
  69. Physics B

    Objects with masses of 105 kg and 528 kg are separated by 0.482 m. A 41.1 kg mass is placed midway between them. 0.482 m b b 105 kg 41.1 kg 528 kg Find the magnitude of the net gravitational force exerted by the two larger masses on the 41.1 kg mass. The

    asked by Mary on November 6, 2012
  70. PHYSICS (what is a dynamic equation????)

    A car of mass Mc is connected to mass m2 by a string. The string passes over a solid cylindrical pulley, which has a frictionless bearing, of radius R and mass M. when the system is released from rest the string doesn't slip, the car moves down the

    asked by ~christina~ on December 3, 2007
  71. Stats

    Exercise 6-8 The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 235 customers on the number of hours cars are parked and the amount they are charged. Number of Hours Frequency Amount Charged 1 18 $3 2 33 7

    asked by Nicole on September 28, 2010
  72. Research Paper: jack london/call of the wild

    Hi. I need some good sources to use. Lots of them. I'll explain I need to write a 6 page research paper on Jack London and the book "The Call of the Wild" (yes both), using only things told to me from sources. Here's another thing: I can't plagiarize any

    asked by Andrew on May 9, 2007
  73. health and huma services

    Can someone please help I am having problems with this assignment? The Miami Cuban-American Service Center was founded in 1962 as a place for older Cuban Americans to meet and socialize. Over the years the agency became increasingly involved in providing

    asked by Ree on October 18, 2008
  74. English(Review Paper)

    Will you please proofread this? Indigo By:Alice Hoffman Bryce Three Key Events 1. Martha Glimmer lives in the horrible town of Oakgrove. Her two adopted brothers are outcasts in the town of Oakgrove because they have webbed toes and fingers. They all long

    asked by Bryce on December 7, 2011
  75. math calculus

    The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to

    asked by harold on May 20, 2013
  76. physics

    A 3 kg block is attached to an ideal spring with a force constant k=200 N/m. The block is given an initial velocity in the positive direction of magnitude u= 12 m/s and no initial displacement (xi=0). Find a) the amplitude, b) the phase angle, and c) write

    asked by Scott on April 16, 2018
  77. Physics

    You find yourself driving 35 kilometers an hour when you take your foot off the accelerator and descend 18 meters into the valley. Just as you reach the bottom, you see a policeman hiding between a speed limit sign that reads 70 kilometers per hour. Will

    asked by Anonymous on December 1, 2016
  78. Social studies

    1. In a typical rural village in Mexico,you might expect to find that most people living on farms get their food by? A)growing their own food. B)buying what they need at large supermarket. C)buying what they need at small markets. D)gathering nuts and wild

    asked by Die first den bi*** on May 1, 2018
  79. Chemistry

    Balance the equation: NO2- (aq) + Al (s) --> NH3 (g) + AlO2- (aq) (basic solution) ** please note the "2-" on the NO2- and AlO2- are not subscripts, they are the charges. I missed a few classes in Chemistry and find myself lost. I have tried to learn these

    asked by Nikki on October 30, 2015
  80. Physics

    A house wife uses “a fire tong pair” of length 20cm to lift a piece of burning coal of mass 200gm. If she applies force at a distance of 5cm from the fulcrum, what is her effort? If the efficiency of the fire tong is 100% . find it M.A and V. R.

    asked by paresh on February 11, 2016
  81. physics (mechanics)

    find the constant force necessary to accelerate a car of mass 1000kg from 15m/s to 20m/s in 10s against resistance of 270N ? pls show work (answer is 770N just in case to check) ive been asking this question 4 times still no one answer . someone pls do .

    asked by sam on February 7, 2016
  82. Optimization Calculus

    A three sided fence is to be built next to a straight section of river, which forms the fourth side of a rectangular region. There is 96 ft of fencing available. Find the maximum enclosed area and the dimensions of the corresponding enclosure. I drew a

    asked by Nicole on May 2, 2015
  83. physics

    An object was dropped from the top a tall building. During the last two seconds of the fall in traveled 80m. A) Find the total time of the fall. Assume that the gravitational acceleration is a constant 10m/s and air resistance is negligible. B) Calculate

    asked by Tereza on October 30, 2010
  84. Algebra

    Assume the car can be purchased for 0% down for 60 months (in lieu of rebate). A car with a sticker price of $42,300 with factory and dealer rebates of $5,100 (a) Find the monthly payment if financed for 60 months at 0% APR. (Round your answer to the

    asked by Anonymous on June 23, 2013
  85. Science/Weather

    Satellite images help meteorologists in all the following ways except: a) monitoring changes in the strength of storms b) locating areas of high and low pressure systems. c) predicting rainfall amounts d) recording daily high and low temperatures. I think

    asked by HiHi12345Kate on February 13, 2017
  86. Global

    I need one more source for my paper. It is on the theme of Environmental and Society. I am using the ancient civilizations of china, greece and india. I have a BUNCH of information on the geography, what they ate because of geography, what they did because

    asked by Anonymous on January 4, 2009
  87. Physics

    The displacement of a block of mass 439g 439 g attached to a spring whose spring constant is 66N/m 66 N m is given by x=Asin(ωt) x A s i n ω t where A=12cm A 12 c m . In the first complete cycle find the values of x x and t t at which the kinetic energy

    asked by Sarah on February 10, 2016
  88. chemistry

    1 gm of magnesium is burnt in a closed container which contains 2 l of air at ntp containing 21 percent oxygen by volume find limiting reagent, mass of excess reagent left over, mass of mgo produced, number of mg and oh ion formed by dissolving it with

    asked by David on January 14, 2016
  89. physics

    A centrifuge is revolving at the rate 10,000rpm. The radius of revolution for a 0.100-g particle being separated is 8.00 cm. a) Identify the given quantities with their symbols and units. b) What is the angular speed in radians per second? c) What is the

    asked by karen on October 25, 2011
  90. math

    The displacement (in centimeters) of a particle moving back and forth along a straight line is given by the equation of motion s = 4 sin ¦Ðt + 3 cos ¦Ðt, where t is measured in seconds. (a)Find the average velocity during each time period. (i) [1, 2]

    asked by yanxin on September 3, 2011
  91. calculus

    The demand function for a product is given by p = 10,000(1 − (5/5 + e^−0.001x)) where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500.(Round your answers to

    asked by steve on May 20, 2013
  92. English

    Hello, Does this sentence make sense? If not, can you please provide suggestions on what I could write in place of? I need a sentence that is strong to reflect my desire to enter the business workforce. I find myself driven, as I expect to demonstrate my

    asked by S on December 12, 2008
  93. social studies

    Children whose parents encourage them to use gestures in their development of communication: A)ave difficulty mastering a large vocabulary. B)have better comprehension. C)are frustrated in their communication. D) watch people's gestures more than they

    asked by missy on October 10, 2011
  94. Precal

    Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to two decimal places where appropriate.) cos θ = 0.16 I know how to find the answers when it's in fraction form, however, I do not know how to do

    asked by Zoe on November 4, 2015
  95. Calculus

    A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 100 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

    asked by Anonymous on November 1, 2011
  96. physics

    A diffraction grating with 150 slits per centimeter is used to measure the wavelengths emitted by hydrogen gas. At what angles in the fourth-order spectrum would you expect to find the two violet lines of wavelength 434 nm and of wavelength 410 nm? (angles

    asked by sam on December 12, 2014
  97. MATH

    5. Sales. An auto dealer’s sales numbers are shown in the table below. Find for each month the mean, median, and mode prices of the cars she sold. Round your answers to the nearest dollar. Price May June July $20,000 22 25 24 $15,000 49 24 24 $12,500 25

    asked by Jones on December 19, 2016
  98. math

    From a barrel of colored marbles, you randomly select 4 blue, 5 yellow, 6 red, 2 green, and 5 purple. Find the experimental probability of randomly selecting a marble that is NOT blue. 6/13 1/2 9/11 3/8 Some one please help me just someone explain it to me

    asked by I want something to eat on May 9, 2018
  99. physics

    1100g of ice at -50C is mixed with 100g of steam at 120C. Find out how much ice melts? The implied final temperature is 0C. Cice=0.5 Csteam=0.46 Hv=539 Hf =80 here is my work 1100(0.5)(0+50)+80m = 100(0.46)(120-0)+540(100) i am not getting the right answer

    asked by jeff on December 5, 2009
  100. Marketing

    Pick a product or service and explain the nature of consumption by Hispanic, African American, or Asian consumers. Why does consumption differ from the other groups? You are required to find 2 sources to support your paper (newspaper articles, books or

    asked by Jeremy on October 2, 2011

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