1. algebra

    a ball is thrown straight up into the air with an initial velocity of 128 ft/sec, the total amount of time in seconds that it takes the object to return to the earth can be calculated by using the quadratic, 128t-16t^2=0. Determine the "flight time," t, of

    asked by Shelly on December 12, 2011
  2. math

    Assume the brakes of an automobile produce a constant deceleration of k ft/sec^2. Determine what k must be to bring an automobile traveling 60 mph to a rest in a distance of 100 ft from the point where breaks are applied? With the same k, how far would a

    asked by Barry on April 15, 2015
  3. Physics

    A rotating turntable of mass 200g and radius 10 cm is uniformly accelerated from rest to attain it's maximum velocity of 33 and half revolution per minute through an angular displacement of 240 degree . Determine the (1). uniform angular acceleration.

    asked by Bill on May 29, 2018
  4. Chemistry

    When 1914.8C of electricity was passed through two electrolytic cells connected in series 0.6g of a metal M1 was deposited in one of the electrolyte, if 2.14g of another metal M2 was deposited at the other cathode and the sum of the quantity required to

    asked by Jeane on December 15, 2018
  5. Math

    a conical vessel 6 meters across the top and 4 meters deep is filled with water. A portion was spilled out by slanting the cone such a way that its slant height is in vertical position. determine the cross section area of the water surface that remains on

    asked by Shanu on January 22, 2015
  6. electrostatic physics

    2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of

    asked by jc on February 12, 2012
  7. Grammar

    Determine if the following sentence employ Correct use of Commas and apostrophes.True=correct False=wrong 1. The child was initially started on ceftriazone, but developed a rash and was therefore changed to chloramphenicol. Answer: TRUE nedd the comma

    asked by Leslie on May 11, 2011
  8. math

    Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The

    asked by Anonymous on April 30, 2014
  9. chemistry

    Can someone please explain how to do this question? A 0.057M solution of a weak acid has a pH of 4.93. Determine the ionization constant, Ka, of the acid. a) 2.1 x 10^-4 b) 2.4 x 10^-9 c) 4.1 x 10^-8 d) 2.8 x 10^-7 e) 1.4 x 10^-10 -- Well, to be honest, I

    asked by polkadot on April 7, 2011
  10. statistics

    Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the

    asked by fm on April 4, 2014
  11. maths

    An initial-value problem is given by the differential equation, f(x,y) = x + y, y(0) = 1.64 The Euler-midpoint method is used to find an approximate value to y(0.1) with a step size of h = 0.1. Then use the integrating factor method, to find the exact

    asked by Matthew on September 29, 2013
  12. math please help me

    Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

    asked by ibrahim on April 4, 2011
  13. Finance

    Determine the amount of each payment to be made to a sinking fund in order that enough money will be available to pay off the following loan. $29,000 loan, money earns 12% compounded annually, 42 months. I tired doing this using the future value of an

    asked by Ben on February 18, 2010
  14. physics

    A helicopter is flying with a constant horizontal velocity of 144.2 kmph and is directly above the point A when a loose part begins to fall. The part lands 6.5seconds later at point B on an inclined surface. Determine (a) The distance 'd' between points A

    asked by Anonymous on April 16, 2015
  15. Chemistry

    use the appropriate standard reduction potentials in the appendix of your book to determine the equilibrium constant at 285 K for the following reaction under acidic conditions 4H+(aq) + MnO2(s)+2Fe+2(aq)----> Mn+2 (aq)+2Fe3+(aq)+2H2O(l) The reductions

    asked by Rachel on April 28, 2016
  16. Chemistry

    Write the balanced chemical equation for the decomposition of sodium azide. If this is a redox reaction, show half reactions and determine if spontaneous. The chemical equation is 2NaN3(s) -> 2Na(s)+3N2(g) right? I am confused on the oxidation states for

    asked by Heather on October 8, 2012
  17. Physics

    An equivalent definition can be based on the fact that an exposure of one roentgen deposits 8.30 x 10-3 J of energy per kilogram of dry air. Using the two definitions and assuming that all ions produced are singly charged, determine the average energy (in

    asked by Beth on August 4, 2012
  18. math

    Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

    asked by ibrahim on April 4, 2011
  19. Physics

    { The subscripts are in curly brackets } A mass m is at rest on a horizontal frictionless surface at t=0. Then a constant force F{0} acts on it for a time t{0}. Suddenly, the force doubles to 2F{0} and remains constant until t=2t{0}. Determine the total

    asked by Phil on September 16, 2010
  20. CHEM

    CaCO3 can be roasted to produce CaO ans CO2 this reaction is carried out in flask connected to an open end Mercury manometer the atmospheric presure in 762tor if the pressure of the CO2 produced is 0.254 determine the total pressure

    asked by mow on November 13, 2014
  21. CHEMISTRY!

    A 20.00 mL of 0.200mol/L magnesium chloride solution is added to a 95.00 mL of 0.800 silver (I) nitrate solution, and a precipitate is formed. a.Determine the concetration of the nitrate ions at the end of the reaction I was able to calculate the things

    asked by michael on April 22, 2014
  22. Chemistry

    Draw the structure of the tripeptide “Asp-Ala-Ile” at pH = 1. Then determine the total charge of the tripeptide. The side chain of each amino acid is shown below in the form at pH = 7. (So when you use them to answer this question, you might need to

    asked by Jennifer on April 27, 2017
  23. math formula?

    Mary would like to save $10 000 at the end of 5 years for a future down payment on a car. How much should she deposit at the end of each week in a savings account that pays 12%/a, compounded monthly, to meet her goal? d. Determine the weekly deposit

    asked by Aly on January 20, 2011
  24. chemistry

    I did a chemistry lab on polarimetry where we separated two enantiomers into individual salts and then used a polarimeter to determine the specific rotation and optical purity. What is the relationship of the proline salts to one another? i said that being

    asked by laura on March 31, 2008
  25. differential equations

    Search: A 8 kg mass is attached to a spring hanging from the ceiling and allowed to come to rest. assume that the spring constant is 40 n/ m and a damping constant is 3 N/m. At t=0 and external force of 2 sin(2t+PI/4)N is applied to the system. determine

    asked by mike on April 18, 2011
  26. physics

    1 - Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25.

    asked by zainab on March 25, 2014
  27. math

    Select a variable (mean, proportion, variance or standard deviation) of interest to you and collect data consisting of at least 30 values. Define the variable. Define the population. Describe how the sample was selected. Use Microsoft Excel (and MegaStat

    asked by tom on April 4, 2011
  28. physics

    Determine the distance to which the 90 kg painter can climb without causing the 4 m ladder to slip at its lower end A as shown in Figure 1. The top of the 15 kg ladder has a smaller roller, and at the ground the coefficient of static friction is 0.25. The

    asked by zainab on March 25, 2014
  29. Production and Operations management

    A ball bearing assembly firm wants to set up an assembly line which must have an output of 60 units per hour. The work elements are A to J and the task times are 40, 30, 50, 40, 6, 25, 15, 20, 18 and 30 seconds respectively. a. Determine the cycle time

    asked by Special on July 6, 2010
  30. Math

    Triangle AOB has vertices A(4,4), O(0,0), and B(8,0). EF right bisects AB at P. GH right bisects OA at Q. Determine the coordinates of the circumcentre of triangle DEF. I really need help, please. Today, my teacher just gave us all this work for over the

    asked by Katja on October 12, 2007
  31. Physics4

    2. At the point of fission, a nucleus of 235U that has 92 protons is divided into two smaller spheres, each of which has 46 protons and a radius of 5.9 × 10^-15 m. What is the magnitude of the repulsive force pushing these two spheres apart? The value of

    asked by jc on February 12, 2012
  32. physics

    Two fi gure skaters are moving east together during a performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2 pushes on skater 1 with a force of 64 N [W]. Assume that no friction acts on either skater. T / I (a) Determine the acceleration of

    asked by shan on April 16, 2012
  33. cuyamaca

    Eddings Company had a beginning inventory of 400 units of Product XNA at a cost of $8.00 per unit. During the year, purchases were: Feb. 20 600 units at $9 Aug. 12 300 units at $11 May 5 500 units at $10 Dec. 8 200 units at $12 Eddings Company uses a

    asked by ali on October 19, 2010
  34. Physics and chemistry

    Chapter 1 & 2 Review Questions 1. Compare and Contrast the two main branches of physical science. 2. Distinguish between scientific laws and scientific theories. 3. Describe the steps of the scientific method. 4. Explain the objective of a consistent

    asked by mido on December 13, 2010
  35. math!

    for f(x)=x^2+kx+k, determine all values of k such that f(x)>0 The minimum of f(x) occurs when f'(x) = 2x + k = 0, x = -k/2 The value of f(x) at that minimum is f(-k/2) = k^2/4 -k^2/2 +k = k^2/4 + k That minimum is >0 if k>0 or k< -4

    asked by moi on October 29, 2006
  36. Math

    Determine the solution of the equetion: 2cos x-1=0? 2cos x=0? and 2cos x+1=0?

    asked by Miley on September 8, 2015
  37. Math

    Determine whether or not the network is traversable. (Points : 1) No, it is not traversable. Yes, it is traversable.

    asked by CC on June 7, 2011
  38. Functions

    I need help with the following question. I am sure how to tell if something is a function or not. Determine whether the realtion is a function. {(-6,2),(-2,5), (3,2),(3,-7)} I think its not a function, but then again I think it is cause you have different

    asked by Soly on September 1, 2007
  39. 12th grade calculus

    Let f(x)=[x^3-9x] [] --- absolute value a. does f'(x) exist? b. does f'(3) exist? c. does f'(-3) exist? d. determine all extrema of f.

    asked by dt on November 4, 2008
  40. Physics

    A person lifts a 5.2 kg cement block a vertical distance 1.2 m and then carries the block horizontally a distance 7.3 m. Determine the work done by the person and by the force of gravity in this process.

    asked by Mike on January 9, 2012
  41. physics

    a helicopter of mass m has an acceleration of magnitude 0.12 upward. a)determine the force required to cause this aaceleration? b) how much work is done by this force in moving the helicopter a distance deltay upward?

    asked by samima sabah on October 31, 2010
  42. Math: Scalar Equation of a Plane

    Determine whether the following pairs of planes are coincident, parallel and distinct or neither. a) x + 3y - z - 2 = 0 and 2x + 6y - 2z - 8 = 0 TEXTBOOK ANSWER: parallel and distinct Please provide a step by step solution so I can understand the

    asked by Anonymous on March 25, 2008
  43. Physics

    3.2 kg block is given an initial velocity of 12 m/s across horizontal surface. after travels 8 m speed is 2.4 m/s. determine coefficient of friction bewern block and surface and how far it travels before coming to rest

    asked by Anonymous on November 3, 2014
  44. dynamics

    the power developed by a man in riding up a 6 percent grade at a constant speed is 200w. the man and his bicycle have a combined mass of 80 kg. Determine the speed of riding

    asked by Anonymous on July 22, 2013
  45. Calculus

    3. Discuss the graph of y=x/3+2+3/x. Determine the values of x for which the graph is a. Continuous b. Rising c. Falling d. Concave upward e. Concave downward f. Has a relative maximum g. Has a relative minimum

    asked by Anonymous on January 16, 2012
  46. chemistry

    A steel tank contains carbon dioxide at 34 celsius and is at a pressure of 13.0 atm. Determine the internal gas pressure when the tank and its contents are heated to 100 celsius

    asked by lavonne on October 18, 2010
  47. Physics

    A 3.00 uF and a 5.00 uF capacitor are connected in series cross a 30.0V battery. A 7.00 uF capacitor is then connected in parallel across the 3.00 uF capacitor. a)Calculate the equivalent capacitance of the circuit I think the answer is 3.33 uF.

    asked by ALan on February 16, 2010
  48. Math

    Determine the costing plaster work of room of size 15x20 ft. Take height of room =10ft. Consider two windows of size 5x4 ft,assume rate of plaster Rs.20 sq.ft ??

    asked by Devendra on August 4, 2017
  49. Physics

    A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

    asked by Megan on February 7, 2011
  50. Math (PLEASE HELP!)

    The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

    asked by Brandon on June 7, 2015
  51. Math (PLEASE HELP!)

    The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

    asked by Sasha on June 6, 2015
  52. Math

    The temperature of an enclosure for a pet snake should be about 27°C, give or take 3°C. (show your work) a) What absolute value expression can be used to represent this situation? b) Use the expression to determine the temperature range the enclosure

    asked by Sasha on June 6, 2015
  53. chemistry

    assuming the density of a 5% acetic acid solution is 1.0g/ml, determine the volume of the acetic acid solution necessary to neutralize 25.0 ml of 0.10 m NaOH. also record this calculation on your report sheet.

    asked by janvi on October 22, 2009
  54. math

    I have a plant that measures 4 inches tall. I measured it two weeks later and it was 6 times its original height. Write an equation using the variable, p, to determine the height of the plant two weeks later.

    asked by kathy on January 6, 2016
  55. chemistry

    SO2 and O2 are placed in a 2.00 L container at a temperature of 786 °C and a pressure of 6.99 atm. During the reaction, SO3 forms and the pressure falls to 1.89 atm. Determine how many moles of SO3 are generated.

    asked by leo on September 12, 2017
  56. physics

    A 1.3 kg mass accelerates at 8.2 m/s2 in a direction 23 degrees north of east. One of the two forces acting on the mass has a magnitude of 7.85 N and is directed north.Determine the magnitude of the second force. Im in need of serious help I only have one

    asked by Joe Rogers on September 29, 2012
  57. geometry

    A 12-foot ladder that is leaning against a wall makes a angle with the level ground. What equation can be used to determine the height in feet (y) from the ground to where the ladder touches the wall?

    asked by why on March 9, 2017
  58. physics

    A cart released from rest at the top of a track 90. cm long takes 4.00 seconds to reach the bottom. determine the velocity as the cart reaches the bottom of the track

    asked by Anonymous on October 5, 2014
  59. Chemistry Check

    Determine the missing values of deltaH in the diagram shown below ^ | ^ N2O3(g) + 1/2 O2(g) (Enthalpy)| | ^ | | deltaH= +16.02 | | | | | | 2 NO2(g) | | | ^ | |deltaH=? | | | | | | deltaH=?| | | | | | | | N2(g)+202(g) | Answer: Delta H for the right= 66.36

    asked by Nancy on October 18, 2014
  60. CHM

    Assuming the density of acetic acid solution is 1.0 g/mL, determine the volume of the acetic acid solution necessary to neutralize 25.0 mL of 0.10 M NaOH. Record this calculation on your report sheet

    asked by JACK on January 25, 2011
  61. chemistry

    A flask contains 0.260 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask. Express your answer numerically in molecules.

    asked by diana on August 16, 2016
  62. Math

    The circumference of earth is about 40,030.02km. The formula for circumference is c=2(3.14)r.jennifer determines the radius of earth is about 12,700km.use estimation to determine if Jennifer measurement is reasonable.

    asked by Kari on September 5, 2016
  63. Linear Programming

    Tab 1: Linear Program: 50 points Consider the Linear Program: Max 2A + 3B s.t. 1A + 2B

    asked by Patrick on January 20, 2011
  64. math

    samuel is painting the toy chest shown in the diagram (including the bottom). He needs to know the surface area to determine how much paint to buy.Which of the following is the surface area of the chest.

    asked by HELP PLZ on March 15, 2017
  65. Microeconomics

    LTC=2q-2q^2+q^3 Demand p=100-q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry

    asked by Daniel on November 15, 2016
  66. chemistry

    Determine the of mole of water molecules in one mole of a sample of an iron containing (nh4)2so4. FeSO4. nH2O. titrate a solution of the iron containg (solution Y)

    asked by fiona on December 3, 2011
  67. chemistry

    The reaction 2NOCl(g) ¨ 2NO(g) + Cl2 (g) has an activation energy of 100.0 kJ/mol and a rate constant at 350.0 K of 8.5 x 10-6 mol-1 L s-1. Determine the rate constant at 400 K.

    asked by G-Unit 32 on February 9, 2010
  68. Physics -URGENT-

    A 2 kg mass accelerates at 5.7 m/s 2 in a direction 19◦ north of east. One of the two forces acting on the mass has a magnitude of 17.1 N and is directed north. Determine the magnitude of the second force. Answer in units of N

    asked by Jenna on October 13, 2013
  69. Physics

    Michael Jordan was said to have a hang time of 3 seconds. Use kinematic equations to determine the height to which MJ could leap if he had a hang time of 3 seconds. Hint: You are solving for distance!

    asked by Lilly on November 2, 2010
  70. Physics

    A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

    asked by Megan on February 7, 2011
  71. CHEMISTRY

    The standard electrode potential for the reduction of Eu3+(aq) to Eu2+(aq) is −0.43 V. determine which of the following is capable of reducing Eu3+(aq) to Eu2+(aq) under standard-state conditions? (a) Sn2+(aq) (b) ln(s) (c) HCN(aq) (d) La(s)

    asked by help on November 30, 2012
  72. Mathematics

    Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

    asked by Camille on July 9, 2016
  73. Pre Calculus

    Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

    asked by Jessica Maths on July 10, 2016
  74. physics

    a bullet leaves the barrel of a gun with the speed of 320m/s. the barrel is 80.0cm long. Assuming uniform acceleration, determine a)the time it took b)the acceleration of the bullet

    asked by Cindy on October 31, 2011
  75. chemistry

    In the gaseous phase PCl5 dissociates according to the following equilibrium: PCl5⇌PCl3+Cl2 and Kc=0.8 at 613K .Determine the equilibrium composition when 0.12 moles/L of the three compounds are mixed at 613K.

    asked by Anonymous on July 10, 2016
  76. Physics

    A projectile is shot horizontally at 34.5m/s from the edge of a 55.0metre building a) Determine the height of the projectile from the ground after 2.0 seconds. b) Calculate the velocity of the projectile when the projectile reaches the ground.

    asked by Ara on January 18, 2018
  77. Physics

    A 1 m diameter wagon wheel consists of a thin rim having a mass of 6 kg and six spokes each having a mass of 1.5 kg. Determine the moment of inertia of the wagon wheel for rotation about its axis.

    asked by MUHAMMAD JUNAID on April 3, 2019
  78. Chemistry

    3.05 g of hydrated copper sulfate produce 1.94 g of anhydrous salt. Assuming complete removal of water of crystallisation, determine the formula of hydrated copper sulfate.

    asked by Melissa on March 11, 2015
  79. algebra

    a) Find a polynomial R(p) that represents the total revenue when the shirts are p dollars each. b) Find R(5), R(10), and R(20). c) Use the bar graph to determine the price that will give the maximum total revenue.

    asked by Anonymous on November 11, 2010
  80. Physics-Mechaincs

    A 1.3 kg mass accelerates at 5.8 m/s2 in a direction 36◦ north of east. One of the two forces acting on the mass has a magnitude of 17.3 N and is directed north. Determine the magnitude of the second force. Answer in units of N.

    asked by Genevieve on September 19, 2010
  81. Chem 1010

    Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.

    asked by Sirena on April 10, 2012
  82. statistics

    A certain number of articles manufactured in a batch were classified into three categories according to some particular characteristic, being less than 50, between 50 and 60 and greater than 60. If this characteristic is known to be normally distributed,

    asked by Jeshani on August 21, 2014
  83. physics

    Piston circled 1 in the figure below has a diameter of 0.28 in.; Piston circled 2 has a diameter of 1.6 in. In the absence of friction, determine the force vector F necessary to support the 500-lb weight. in lb i got 1.53 lb but it is incorrect

    asked by anna on April 10, 2016
  84. physics

    A hand exerciser utilizes a coiled spring. A force of 82.0 N is required to compress the string by 0.0191 m. Determine the force needed to compress the spring by 0.0520 m.

    asked by Lola on July 4, 2015
  85. math

    At a park, 96 brown-bag lunches were given out in thirty minutes. If 29 bags remain and x represents the starting number of brown-bag lunches, which equation could be used to determine the value of x?

    asked by Anonymous on February 28, 2013
  86. Chemistry

    Given the following equilibrium constants are given at 377°C, 1/2 N2(g) + 1/2 O2(g) NO(g) K1 = 110−17 1/2 N2(g) + O2(g) NO2(g) K2 = 110−11 N2(g) + 3/2 O2(g) N2O3(g) K3 = 210−33 N2(g) + 2 O2(g) N2O4(g) K4 = 410−17 determine the values for the

    asked by Margaret on February 13, 2013
  87. math

    a person who is 1.9m tall has a shadow that is 1.5m long. at the same time a flagpole has a shadow that is 8m long. determine the height of the flagpole to the nearest tenth of a metre. draw a diagram

    asked by Anonymous on August 9, 2011
  88. Math

    In the triangle ABC given, side AB is twice as long as side AC. We have: m

    asked by L on June 13, 2016
  89. multivariable calculus

    Consider the surface given by the equation: 2x2 - 3z2 - 4x -4y - 12z + 2 = 0 (a) Write in standard form ) (b) Determine and classify the traces with planes parallel to the xy-, xz- and yz- planes. (c) Hence classify the surface.

    asked by cheuk on March 26, 2013
  90. physics

    The drawing shows two situations in which charges are placed on the x and y axes. They are all located at the same distance of 27.4 cm from the origin O. For each of the situations in the drawing, determine the magnitude of the net electric field at the

    asked by fyf on May 18, 2016
  91. Dynamics

    The power developed by a man in riding up a 6 percent grade at a constant speed is 200 w. The man and his bicycle have a combined mass of 80 kg. Determine the speed of riding

    asked by Dhilsath on July 31, 2012
  92. Chemistry

    A bag contains a mixture of copper and lead BBs. The average density of the BBs is 9.80 {\rm g/cm^3}. Assuming that the copper and lead are pure, determine the relative amounts of each kind of BB.

    asked by Anonymous on June 5, 2011
  93. Chemisty

    We recently did the baking soda vinegar reaction to determine how much acetic acid was in 15 mL of vinegar. What is the minimum amount of baking soda that you could do to inure an accurate result? Thank you so much for your help!

    asked by Anonymous on February 6, 2014
  94. physics

    A car is driven east for a distance of 88 km, then north for 28 km, then in a direction 30 degrees east of north for 25 km. Determine the magnitude of the displacement (in kilometers) of the car from its starting point. thanks!

    asked by lisa on June 14, 2011
  95. physics

    an object moving on the x axis with a constant acceleration increases its x coordinate by 108 m in a time of 9.5 s and has a velocity of 20 m/s at the end of this time. Determine the acceleration of the object during this motion?

    asked by chris on August 10, 2014
  96. Physics

    A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below the horizontal. Determine the magnitude of the normal force exerted by the table.

    asked by Megan on February 7, 2011
  97. Chem 1010

    Determine how many moles of HCL are contained in 44.9 mL of 8.00 M solution of HCl. Express your answer in decimal form rounded to three decimal places. Do not include units with your answer.

    asked by Sirena on April 10, 2012
  98. Physics

    A water bed has dimensions of 1.83 m 2.17 m 0.247 m. The floor of the bedroom will tolerate an additional weight of no more than 6660 N. Find the weight of the water in the bed and determine whether it should be purchased.

    asked by joe on November 1, 2007
  99. Science

    The temperature of a silver bar rises by 10. 0°c when it absorbs 1230 jof energy by heat. The made of the bar is 525 g. Determine the specific heat of silver.

    asked by Kathryn Moore on May 15, 2016
  100. algebra

    find the following for the function f(x)= (x+5)^2(x-1)^2 a) find the x and y intercepts for the polynomial function f b) determine whether the graph of f crosses or touches the x axis at each x intercept C) put all information together to obtain the graph

    asked by alli on August 18, 2012

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