1. physcis

    A crane whose motoer has a power input of 5.0kW lifts a 1200-kg load of bricks through a height 30m in 90s. Find the efficency of the crane which is the ratio between its output power and its input power

    asked by Ania on November 15, 2011
  2. Algebra I

    Son brought home a hand made worksheet that teacher did not go over and can't find examples anywhere. Multiply each expression by its conjugate. A. Square root of (13)-2 B. 2+3Square root (5) C. Square root(3) minus Square root(7) Thanks

    asked by Mom on March 15, 2016
  3. statistics

    the average number of gallons of lemonade consumed by the football team during a game is 20, with a standard deviation of 3 gallons. assume the variable is normally distributed. when a game is played, find the probability of using a) Between 20 and 25

    asked by Michelle on May 16, 2011
  4. Trigonometry

    An elliptical arch is constructed which is 6 feet wide at the base and 9 feet tall in the middle. Find the height of the arch exactly 1 foot in from the base of the arch. looking for direction with what ellipse equation is and how to approach this problem

    asked by CodyJinks on June 19, 2019
  5. Math

    Abigail Adventuresome took a shortcut along the diagonal of a rectangular field and saved a distance equal to 1/3 the length of the longer side.Find the retio of the length of the shorter side of the rectangle to that of the longer side.

    asked by JEFF BOMB on January 5, 2010
  6. Physics

    The three displacement vectors in the drawing have magnitudes of A = 5.48 m, B = 5.23 m, and C = 4.75 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional angle as an

    asked by joe on September 9, 2015
  7. Please help me with Trig

    Given cos 67.5° = [√(2+√2)]/2, find tan 67.5° , simplify where needed, and show work. I'm starting to learn this stuff, and I'm so confused where to start. I know they gave me the coordinate X as in cos 67.5° = [√(2+√2)]/2, and I also know that

    asked by Jane on January 27, 2016
  8. Dynamic

    A stone is thrown up with a velocity of 20 m/s. While coming down, it strikes a glass pan, held at half the height through which it has risen and loses half of its velocity in breaking the glass. Find the velocity with which it will strike the ground.

    asked by Adnan on April 22, 2016
  9. Precal

    The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0

    asked by Josh on August 23, 2014
  10. math

    is there a way to do this problem or do i have to just guess and check. because by guessing and checking, i can't find the right answer Name a function with the following characteristics: note: f prime means the first deriviative f is continuous over the

    asked by sammy on November 15, 2009
  11. physics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 20 N. Starting from rest, the sled attains a speed of 2.2 m/s in 8.4 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked by alika on October 2, 2014
  12. Business

    How can I create a new restaurant that follows a blue ocean strategy? I am trying to find a way to attract a target market that would not usually be a target market or make the restaurant sell something or have a unique running style that makes it

    asked by Anonymous on March 24, 2015
  13. physics -plz help

    1) A car is moving at 100 km/hr. Its mass is 950 kg. Find its KE. 2) What force is needed to accelerate a 1300-kg car from rest to 20 m/s in 80 m? 3) A 1200-kg car going 30 m/s skids to rest. The friction force is 6000 N. How far does it skid?

    asked by Salmon24 on October 23, 2015
  14. Algebra

    The volume in cubic feet of a Cd holder can be expressed as V(x)=-x^3-x^2+6x, the depth is 2-x , factor the polynomial to find linear expression for the height and the width. - Do I just factor the -x^3-x^2+6x? It because I know the volume is LWH, so don't

    asked by Shadow on February 7, 2012
  15. Math

    A baseball is thrown in the air at 5 ft. with an initial velocity of 42 ft per second. let t represent time and seconds. after the baseball is thrown let h represent height of the baseball. quadratic function h(t)= -16t squared + 42 t + 5 Find domain and

    asked by Amber on September 18, 2019
  16. geometry

    You are wrapping a gift box that is 15 inches long, 12 inches wide, and 4 inches deep. Use a net to find the length and width of a single sheet of paper that could be used to wrap the entire gift box.

    asked by Cheyenne Smith on January 31, 2012
  17. calculus

    #3 A solid has a base in the form of the ellipse: x^2/25 + y^2/16 = 1. Find the volume if every cross section perpendicular to the x-axis is an isosceles triangle whose altitude is 6 inches. #4 Use the same base and cross sections as #3, but change the

    asked by Anonymous on February 20, 2014
  18. Calc

    The marginal cost of manufacturing x yards of a certain fabric is C′(x)=3−0.01x+0.000006x2 (in dollars per yard). Find the increase in cost if the production level is raised from 3500 to 8500 yards. Increase in cost =

    asked by Danielle on April 28, 2015
  19. Physics

    Gravity on Titan Titan is the largest moon of Saturn and the only moon in the solar system known to have a substantial atmosphere. Find the acceleration due to gravity on Titan's surface, given that its mass is 1.35 X 10^23 kg and its radius is 2570 km.

    asked by Cooper on November 9, 2011
  20. Math

    Kimberly has a revolving credit account at an annual percentage rate of 15%. Her previous monthly balance is $784.19. Find the new balance if Kimberly's account showed the following activity. (Use the unpaid balance method)

    asked by Desire on August 6, 2019
  21. statistics

    Suppose 100 different researchers each did a study to see if there was a relationship between coffee consumption and height. Suppose there really is no such relationship in the population. would you expect any of the researchers to find a statistically

    asked by Piya on February 27, 2012
  22. Calculus

    A company offers the following schedule of charges: $30 per thousand for orders of 50,000 or less with the charge per thousand decreased by 37.5 cents for each thousand above 50,000. Find the order which will make the company's receipts a maximum? How do

    asked by A company offers the following schedule of charges on December 2, 2012
  23. physics

    A 70 kg person sits on a 3.6 kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.5 cm in diameter. Find the pressure exerted on the floor by each leg of the chair, assuming the weight is evenly distributed.

    asked by Alan on May 12, 2011
  24. Physics

    A ball is thrown from a point 1.0 m above the ground. The initial velocity is 19.6 m/s at an angle of 30 degrees above the horizontal. Find the maximum height of the ball above the ground. Calculate the speed of the ball at the highest point in the

    asked by Anonymous on September 21, 2012
  25. Biology

    Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your

    asked by Joe Henly on April 14, 2011
  26. Integrated Chem/Phys

    If the density of a 225g stuffed plush toy is 1.25g/cm^3 and the water volume in a glass is 25 ml, find the new level of water after the toy is pushed under water. I know that D=m/v so 1.25=225/v so 1.25/225=v so I got .005 which cannot possibly be right.

    asked by Jordan on May 6, 2010
  27. physics

    After being struck by a bowling ball, a 1.4kg bowling pin sliding to the right at 4.5 m/s collides head-on with another 1.4 kg bowling pin initially at rest. Find the final velocity of the second pin in the following situations: a)The first pin moves to

    asked by mariah on November 27, 2012
  28. math

    Solve the problem.A cyclist bikes at a constant speed for 25 miles. He then returns home at the same speed but takes a different route. His return trip takes one hour longer and is 30 miles. Find his speed.

    asked by uyi on March 30, 2016
  29. Math

    Mr.Edgington travels 25 mph in his boat. To determine how far he travels he uses the equation d=25h, where is d in the total distance in miles and h is the number of hours he travels on his boat. Find the independent and dependent variable and the

    asked by Emma on April 17, 2017
  30. Algebra

    A roadside vegtable stand sells pumpkins for $5 each and squashes for $3 each. One day they sold $6 more squash than pumpkins, and their sales totaled $98. Write and solve a system of equations to find how many pumpkins and squash they sold?

    asked by Anna on December 10, 2013
  31. Math

    While cleaning her dorm room, Monica mistakenly pushed three coins off the desk. When they land on the chair below, find the odds (a) in favor of getting exactly three heads (b) in favor of getting exactly three tails (c) against getting exactly two heads

    asked by Shelagh on June 18, 2014
  32. math

    is there a way to do this problem or do i have to just guess and check. because by guessing and checking, i can't find the right answer Name a function with the following characteristics: note: f prime means the first deriviative f is continuous over the

    asked by sammy on November 14, 2009
  33. geometry regular polygon

    a=? s=10.5cm A= 19,887.5cm squared Pentagon A=asn/2 19,887.5cm=a*10.5*5/2 39775=52.5a a=757.61cm? am i correct? regular nonagon a=9.6cm A=302.4cm squared find perimeter thanks!

    asked by Skye on March 6, 2011
  34. Math

    During a tournament, 4 players on the school golf team drank equal amounts of water from a 6-liter water jug. They drank all of the water. Which equation can be used to find the number of liters of water that each player drank?

    asked by Anonymous on April 27, 2016
  35. physics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 34 N. Starting from rest, the sled attains a speed of 2.9 m/s in 9.9 m. Find the coefficient of kinetic friction between the runners of the sled and the snow

    asked by Anonymous on April 9, 2013
  36. calculus

    Consider the function f(x)=–3x3–1x2+1x+1Find the average slope of this function on the interval (–2–1). By the Mean Value Theorem, we know there exists a c in the open interval (–2–1) such that f(c) is equal to this mean slope. Find the value

    asked by Jin on September 4, 2010
  37. physics

    A soccer player kicks the ball toward a goal that is 16,8m in front of him . The ball leaves his foot at a speed of 16,0m/s and an angle 28,0degree above the ground.Find the speed of the ball when the goalie catches it in front of the net?

    asked by afika on May 8, 2016
  38. drbob222

    Can you check this one for me i want to make sure. The simple interest I on a principal of P dollars at Interest rate r for time t, in years, is given by I=PrT.Find the simple interest on aprincipal of $6000 at 3% for 2years. I got the following: I= 6000 x

    asked by jasmine20 on December 12, 2006
  39. physics

    A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 35 N. Starting from rest, the sled attains a speed of 2.1 m/s in 9.5 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked by Rob on October 4, 2012
  40. statistics

    The probability any one widget is free of defects is 0.93. For quality control purposes the company is concerned about bad batches of widgets. If the widgets are shipped in batches of 20, find the probability of at most 2 defective widgets in one batch.

    asked by Jennifer on December 9, 2011
  41. Mathematics

    OPQRS is a right pyramid whose base is a square of sides 12cm each. Given that the slant height of the pyramid is 15cm. Find the height of the pyramid, the volume of the pyramid, and the total surface area of the pyramid by first drawing the net of the

    asked by Joe on February 11, 2012
  42. Calculus

    The measurement of the radius of a circle is 16 inches, with a possible error of .25 inches. Use differentials to approximate the possible propagated error in computing the area of the circle and find the percent error. I've gotten to 2Pi*16*.25 but don't

    asked by Sam on October 25, 2016
  43. AP Physics

    A cylindrical container of radius 20 cm contains water of height of 3 m. Two meters down from the water level there is a hole of 0.5 cm in radius. Find the velocity and volume flow rate of water leaving the hole. Where does it strike the ground?

    asked by Charlie on November 29, 2010
  44. Biology

    Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your

    asked by trey on April 22, 2010
  45. math

    in a jar of 40 marbles there are 12 red marbles 19 blue marbles and there are orange marbles .Find the ratio ratio A pair of numbers that compares different types of units. of each coloured marbles to the total number of marbles. Simplify where possible.

    asked by Kristy on May 26, 2012
  46. physics

    a 16.0-g bullet is shot into a wooden block at rest with mass 4550g on a frictionless surface. the block moves 1.20m/s after the bullet strikes and becomes lodged in the block. find the speed of the bullet before striking the block.

    asked by tommy on April 7, 2015
  47. history--search for earlier post

    i wrote a history question a few days back, i think Ms.Sue gave me a link for it..i need that link, so can someone find that question for me..? the question is: Discuss the several plans for reconstruction and explain one success and one failure of

    asked by Bella on February 22, 2009
  48. Phyics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 28 N. Starting from rest, the sled attains a speed of 2.3 m/s in 10 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked by Corey on September 26, 2013
  49. physics

    A 10g object moving to the right at 20cm/s makes an elastic head-on collision with a 15g object moving in the opposite at 30cm/s. Find the velocity of each object after the collision. answer: -40cm/s, 10cm/s

    asked by Anonymous on November 8, 2007
  50. Math Help

    Use a proportion to find the length of side x for the pair of smilar figures below. They're both right triangles. Triangle 1 has 14cm on the the right side and 10cm on the bottom. Triangle 2 has x on the right side and 22cm on the bottom. My answer

    asked by callie on November 20, 2014
  51. physics

    A spring with a force constant of 100 N/m is used to push a 0.27 kg block of wood against a wall. (a) Find the minimum compression of the spring needed to keep the block from falling, given that the coefficient of static friction between the block and the

    asked by I have no clue on October 15, 2011
  52. Solid mensuration

    In a frustum of a right circular cone the diameter of the lower base is 24ft while the diameter of the upper base is 14ft if the slant height of the frustum is 13ft find the total area and the volume of the frustum.

    asked by Met on September 12, 2016
  53. Mechanics AQA igher

    A ship is being steered due east. A current is flowing from north to south, so that the actual velocity of the ship is 12 km/h on a bearing of 120 degree . Find the speed of the current and still water speed of the ship

    asked by Jat on February 1, 2012
  54. maths

    an amount of Rs 5000 is put into three/investments at the rate of interest of 6%, 7%, 8% per annum respectively; the total annual income is Rs 35800. If the combined income from first two investments is Rs 70 more than the income from the third. Find

    asked by edward on July 1, 2013
  55. math

    in 1996 there were about 2,342,000 marriages in the united states, using the # above my teacher wants me to find percentage of marriages per month she started me with january which had 100,000 mariages which came out to 4 percent of marriages for that

    asked by destiny on May 6, 2009
  56. Math

    A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by y=1/12(cos8t-3sin8t), where y is the displacement (in meters) and t is the time (in seconds). Find the times when the weight is at

    asked by Alfredo on February 27, 2018
  57. math

    Seven people rowed 12 miles downstream with the current in 1.5hrs. Coming back upstream against the current covered the same distance but took 4 hours. Find the people rowing rate in the still water and the rate of the current

    asked by Sue on March 20, 2015
  58. math

    a 5ft pole is situated on top of a building. a 25ft pole extends from the top of the pole to a point on the ground creating a 26 degree angle. find the height of the building. please help me work this problem

    asked by moniqui on January 5, 2012
  59. earth

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

    asked by hanu on September 19, 2012
  60. algebra

    A Boeing 747 flies 2420 miles with the wind. In the same amount of time, it can fly 2140 miles against the wind. The cruising speed ( in still air) is 570 mph. Find the speed of the wind.

    asked by Anonymous on June 10, 2013
  61. physics

    A 2 kg mass falls 40 m and buries itself into the ground 0.40 m. Find: a) How much work was done by gravity, b) How much potential energy was lost, and c) What was its speed when it hit the ground, and d) the average force causing the mass to stop once it

    asked by Ted on November 28, 2012
  62. math

    two boats p and q are at points whose position vector are 4i+8j and 4i+3j respectively. both of the boats are moving at a constant velocity of p is 4i+j and q is 2i+5j. find the position vectors of p&q and pq after t hours, and hence express the distance

    asked by Joshua on February 6, 2016
  63. finance math

    A car dealer purchased 2 cars, one for $1500 and the other for $20000, He then sold the first car at a loss of 14% and the second car for a profit of 15%. Find the dealer¡¯s profit for the whole transaction and express the answer as a percentage of his

    asked by timmy on August 27, 2012
  64. Need 8 grade math help quick please!

    I don't understand this. I don't get exactly what I'm supposed to do with the P(parenthes) thingy or how each question differs from the next. Theoretical and Experimental Probability: A number cube with the numbers 1 through 6 is rolled. Find the given

    asked by Rainshine on March 28, 2014
  65. chemistry quick question

    I need help with something and can't find this anywhere online. my structure looks like this OH CH2 CH3CH2CH2CHCHCH2CH3 CH3 So that OH looks like it is on a ethyl group. I need to write the IUPAC name and I wrote 3-methyl-4-heptanol but realized my mistake

    asked by michelle on March 25, 2013
  66. applied physics

    an airplane is heading due west at a velocity of 500 miles/hr. There is a cross wind due North at a velocity of 50 miles/hr. find the airplanes velocity relative to the ground (magnitude and direction)

    asked by jennifer on November 11, 2010
  67. Geometry

    I need help with properties of a TRAPEZOID, please! -Are opposite sides congruent AND parallel? -Are opposite angles congruent? -Are the diagonals congruent? -Do the diagonals bisect eachother? I went on many sites to try and find the answers to these

    asked by Jenn on March 7, 2010
  68. physics

    A shell fired from the ground with an initial speed of 1.70 x 10^3 m/s at an initial angle of 55 degrees to the horizontal. neglecting air resistance, find a) the shell's horizontal range b)the amount of time the shell is in motion.

    asked by luke on November 6, 2010
  69. Math and Phyics

    Mass points M and m are kept at the vertices of an equilateral triangle whose sides are of length a. 1. Find the distance between the center of mass of the system and mas point m. 2.Determine the moment of Inertia of the system about the center of mass

    asked by Saraf on December 22, 2014
  70. algebra

    Suzies flower shop estimates that supplies cost for one month will be given by the polynomial 3x^2+7x-3. She estimates the utilities costs for one month is given by 5x+2 Find and simplify an expression that would estimate suzie's total cost for one month.

    asked by lisa on January 27, 2011
  71. Math

    A 17 foot pipe is cut into three sections. The longest section is 3 times as long as the shortest and the middle sized section is 2 feet longer than the shortest. Find the length of each section to the nearest foot

    asked by Joanna on August 19, 2013
  72. gr9math

    about 99% of the mass of the human body is made up of just six elements. oxygen:65% carbon18% hydrogen:10% calcium:1.5% phosphorus:1.0% Find the mass of each element in a human body iwth mass 60kg. could you please explain to me how to do this? your help

    asked by rebecca on February 8, 2010
  73. math

    Find the representation of the number 256 in the following bases: a. base six b. base twelve c. base two I get how to write the number of objects as a base(whatever), but I think this is asking me to start from the end number and work backwards. I really

    asked by Lauren on September 3, 2009
  74. Algebra

    An inheritance of $19,000 was divided among three investments yielding a total of $1490 in simple interest per year. The interest rates for the three investments were 5%, 7%, and 10%. The 5% and 7% investments were $4000 and $1000 less than the 10%

    asked by Doug on September 12, 2013
  75. math

    arman has 1160 annual income from bonds bearing 3% and 5 % interest. then he added 25% more of the 3% bonds and 40% more of the 5 %bonds, threby increasing his annual income by 410. find his initial investment in each type of bond

    asked by joei on October 6, 2013
  76. **tRiGoNoMeTrY**

    A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by y=1/12(cos8t-3sin8t), where y is the displacement (in meters) and t is the time (in seconds). Find the times when the weight is at

    asked by *tRiGoNoMeTrY* on November 17, 2008
  77. Math

    The function,p(d)=1+ d over 33, give the pressure, in Atmospheres (atm), at a depth (d) in a sea (d is in feet) note that p(0)=1 atm, p(33)=2, and so on, find the pressure at 80 feet. The pressure at 80feet is____atm (type an interger or simplifyed

    asked by Kell on April 24, 2008
  78. calculus - applied problems

    Max area - A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window of maximum area if the total perimeter is 16 feet. - - - - - --------- ! ! ^ !! y ---------

    asked by Gabriel on January 31, 2011
  79. CHEm

    Amount of Helium in a Blimp The Goodyear blimp Spirit of Akron is 62.6 m long and contains 7023 m^3 of helium. When the temperature of the helium is 280K , its absolute pressure is 110kPa . Find the mass of the helium in the blimp. m=_____kg ty

    asked by Brady on April 16, 2014
  80. College Math

    There is a question > Write the slope intercept form of the equation for the line passing through the points (-6,3) and (0,7) Now my answer started with > Slope = 7-3/0-(-6) = Slope = 2/3 Then to find the intercept > Y=mx+c 3= 2/3(-6) + c c= 7 In my

    asked by HM on September 29, 2011
  81. algebra

    The following note was discounted at 16%. Find (a) the discount period, (b) the discount, and (c) the proceeds. Date loan was made: March 15 Face Value: $6000 Length of Loan: 75 days Rate: 6% Date of Discount: April 5

    asked by Felicia on August 21, 2012
  82. math

    A rectangular field is to be enclosed on four sides with a fence. Fencing costs $8 per foot for two opposite sides, and $2 per foot for the other sides. Find the dimensions of the field of area 900 ft2 that would be the cheapest to enclose.

    asked by jennifer on April 10, 2015
  83. calculus - applied problems

    Max area - A Norman window is constructed by adjoining a semicircle to the top of an ordinary rectangular window. Find the dimensions of a Norman window of maximum area if the total perimeter is 16 feet. - - - - - --------- ! ! ^ !! y ---------

    asked by Gabriel on January 31, 2011
  84. Geometry rhombus variable question

    In the rhombus, m

    asked by sLEXANDria on January 10, 2012
  85. math

    the distance that a body falls through when dropped from a certain height varies directly with the square of the time of fall. A body falls through a total of 500m in 10 seconds. find the distance it falls through, in 9th second (in m) Please help me solve

    asked by nimal on January 23, 2015
  86. algebra

    Find the points of discontinuity and any holes. y=x^2-1/(x^2+3x+2) please and thank you y =(x^2-1)/((x+1)(x+2)) =(x-1)/(x+2) we cancelled the (x+1)/(x+1) which is 0/0 for x=-1 so in our simplified expression when x=-1 y = -2 There is a "hole" at (-1,-2) in

    asked by Harry on April 27, 2007
  87. physics

    A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 29 N. Starting from rest, the sled attains a speed of 2.1 m/s in 9.6 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked by simon on July 8, 2013
  88. Math

    The weight of a person and his luggage should not be greater than 150kg when travelling; (i) If the weight of the laggugge is W and that of a person is 70kg. write an inequality to represent this information (ii) Solf the inequality to find the range of

    asked by Ellen on July 9, 2015
  89. math

    suppose you wanted to place 1,000,000 pennies in large coin banks. If you put 50,000 pennies in each bank, in which bank would you find the 678,230th penny when using the number line.

    asked by kaelee on August 14, 2012
  90. physics help

    a 3.5 kg dog stands on a 21 kg flatboat at distance D = 6.1 m from the shore. It walks 2.3 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore. I thought i have the

    asked by mike on March 26, 2010
  91. physics

    An 879-kg (1943 lb) dragster, starting from rest, attains a speed of 25.6 m/s (57.3 mph) in 0.59 s. (a) Find the average acceleration of the dragster during this time interval. (b) What is the magnitude of the average net force on the dragster during this

    asked by javane on November 26, 2010
  92. chemistry

    A certain gas is present in a 11.0L cylinder at 4.0 atm pressure. If the pressure I increased to 8.0 atm the volume of the gas decreased to 5.5L. Find the two constants Ki, the initial value of K, and the Kf, the final value of k, to verify whether the gas

    asked by van on February 12, 2016
  93. Math

    you want to expand the garden by planting a border of flowers. the border will have the same width around the entire garden.the flowers you brought will fill an area of 276sq.ft. How wide should the border be? The inside is 24ft by 16ft but i need to find

    asked by Ronny on November 26, 2007
  94. Physic

    A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 27 N. Starting from rest, the sled attains a speed of 2.2 m/s in 9.6 m. Find the coefficient of kinetic friction between the runners of the sled and the snow.

    asked by Lena on March 5, 2015
  95. physics

    a bullet of mass of 12 grams is fired into a large block of mass 1.5 kg suspended from light vertical wires. the bullet imbeds in the block and the whole system rises 10 cm. find the velocity of the bullet just before the collision.

    asked by erin on June 28, 2010
  96. physics

    The three displacement vectors in the drawing have magnitudes of A = 5.73 m, B = 6.48 m, and C = 3.12 m. Find the resultant ((a) magnitude and (b) directional angle) of the three vectors by means of the component method. Express the directional angle as an

    asked by anonymous on February 3, 2014
  97. math

    A council consists of 10 members.four are NDC,three are NPP and three are from other parties.if a committee of three is to be selected,find the probabilities following: I.one of each party. II.Two NPP and one from other parties. III.one from other parties

    asked by Bravo on March 27, 2016
  98. Physics

    The vector -5.2A⃗ has a magnitude of 40m and points in the positive x direction. Find the x component of the vector A⃗ ? I do not understand how I am supposed to figure this out with just having the magnitude of the vector. Shouldn't there be an angle

    asked by Anonymous on August 21, 2014
  99. Math

    A surveyor sights the top of a building with a handheld range finder. The top of the building is 72 feet 10 inches away. The angle of elevation is 57º. Find the distance from the surveyor to the building to the nearest foot.

    asked by TeeKay on October 6, 2014
  100. Calculus

    How would I find the antiderivative of this equation? S 0 to pi/3 (1-secxtans)dx This should be one that you should just recognize from your study of trig derivatives. Isn't the derivative of sec x, or (cos x)^-1 -(cos x)^-2(-sin x) ?? and isn't that

    asked by Anonymous on May 16, 2007

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