1. Chemistry

    When calcium oxelate is treated with an acidic solution of potassium permanganate, the following reaction occurs: CaC2O4(s) + MnO4-(aq) = Ca+2(aq) + CO2(g) + Mn+2(aq) Balance the equation.

    asked by Sheila on October 16, 2010
  2. chemistry

    Write a balanced chemical reaction to show the dissociation of solid magnesium chloride (MgCl2) in water, indicate states of the reactants and products

    asked by Jessica on October 16, 2010
  3. chemistry

    4 gram of Na metal introduce into a 4 litre flask filled with Cl gas at STP(273K, 1 bar) after reaction over , find limiting reactant

    asked by FARID on April 12, 2012
  4. Physics Someone help please!

    An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

    asked by Amy on May 8, 2013
  5. Business Research Management

    How might you use different types of research (focus groups, observation, survey, and experiment) to forecast market reaction to a new kind of disposable baby diaper?

    asked by Tava Mitchell on November 28, 2012
  6. Chemistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of potassium hydroxide and oxalic acid (H2C2O4) are combined.

    asked by Adriana on September 28, 2016
  7. physics

    An example of the neutron absorption reaction is . 1 0 n+10 5 B-->7 3 Li+ 4 2 He The rest masses of each particle in atomic mass units (u) are 1 0 n= 1 u 10 5 B=10 u 7 3 Li =7 u 4 2 He= 4 u where 1u=1.66x10^-27 kg. calculate Q Q= in MeV I have the same

    asked by Amy on May 8, 2013
  8. chemistry

    Using the balanced equation, determine the number of NaNO3 units in the visualization in the reaction. 3Ca(NO3)2(aq) + 2Na3PO4(aq) → 6NaNO3(aq) + Ca3(PO4)2(s)

    asked by eng on January 20, 2010
  9. Chemistry

    Write a balance equation for the reaction of nitric acid (HNO3) with each base solution : [1]. NaHCO3, [2]. MgCO3. ( Please include the phases of the substance)

    asked by Jennifer on December 8, 2012
  10. chemistry

    CH3CH2CHCHCH3 --HIO4-> | | HO OH Include all steps of reaction, any additional reagents/conditions needed and the products formed. ive been stuck on this for hours need help please

    asked by CHRIS on November 13, 2012
  11. chemistry

    how many moles of NH3 does it take to make 8.0 mol of H20 according to the reaction shown below? 4NH3 + 5O2 --> 4NO + 6H2O I REALLY NEED HELP WITH THIS AS I AM LOST. PLEASE PROVIDE NOTES.

    asked by kristen on September 13, 2016
  12. Organic Chemistry

    what is the name of the amide that is formed by the following reaction: Butanoic acid + Methylamine? - CH3CH2CH2COOH + CH3NH2 ---> product + H2O? i put n-methylbutyramide and they counted it wrong.

    asked by Tina on January 22, 2010
  13. pre-ap chemistry

    HOW MANY GRAMS OF OCTANE WOULD BE NEEDED TO RELEASE 3,500 kJ OF HEAT? 2C8H18 + 25O2-----> 16CO2 + 18H2O DeltaH= -5,530 kJ/mole of reaction

    asked by Matthew on May 3, 2018
  14. Chemistry

    For the reaction Ag2S 2Ag + S2 what happens to the equilibrium position if aqueous ammonium sulfide is added A. Shift left B. Shifts right C. Does nothing D. Doubles E. Halves

    asked by Monique on November 11, 2011
  15. Chemistry

    Consider the following chemical equation. SO2(g) + O2(g) → SO3(g) What volume of sulfur dioxide gas reacts with 37.5 L of O2? The reaction conditions are 875°C and 1.00 atm pressure.

    asked by Kalen on December 6, 2010
  16. Chemistry

    Equal masses of P and Cl react according to the following equation: 2P + 3Cl2 --> 2PCl3 Identify which reagent is in excess. Calculate the percent that will remain at the end of the reaction.

    asked by L. on November 29, 2012
  17. Chemistry

    Consider the reaction 2D2(g)+O2(g)→2D2O(l) What is the mass of heavy water, D2O(l), produced when 7.65g of O2(g) reacts with excess D2(g)? Express your answer with the appropriate units.

    asked by Brittany on April 14, 2015
  18. chemistry

    at a particular temperature, k equals 2.0 x 10 to the -6 power for the reaction 2CO2 2CO + O2 if 2.0 mol CO2 is initially placed into a 5.0 L vessel, calculate the equilibrium concentration of all species

    asked by Anonymous on December 3, 2012
  19. Chemistry

    Calculate how many grams of the product(s) would be produced by complete reaction of 0.125 mole of the first reactant. CaCO3 + 2HCl --> CaCl2 + CO2 + H2O

    asked by Lindsey on April 23, 2012
  20. Algebra II

    Write the simplest polynomial function with the zeros 2-i, square root of 5, and -2. I know that the conjugates are 2+i and -the square root of five, but when I multiply it comes out wrong. not sure A toy rocket is launched from the ground level with an

    asked by K. on April 10, 2007
  21. calculus

    Use Newton's method to approximate a root of the equation 3sin(x)=x as follows. Let x1=1 be the initial approximation. The second approximation x2 is and the third approximation x3 is

    asked by kwack on September 7, 2010
  22. Math

    Use Newton's method to approximate a root of the equation 5sin(x)=x as follows. Let x1=2 be the initial approximation. The second approximation x2 is: and the third approximation x3 is:

    asked by Blair on July 19, 2008
  23. physics/calculus 3

    A ball is thrown at an angle of 45 degrees to the ground. If the ball lands 90 m away, what is the initial speed of the ball?

    asked by Anonymous on February 26, 2012
  24. physic

    the speed boat has a acceleration of 2.0 m/s2 if the initial velocity of the boat is 6.0 m/s2. find the boat displacement after 8.0 seconds?

    asked by junrex on July 13, 2014
  25. Physics

    A ball is dropped from rest from a height of 20.0m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Alex on August 31, 2012
  26. physics

    A person has the ability to jump with an initial speed of 6.0 m/s at an angle of 35 degree with the ground. a. How long will the person be in the air? b. How far horizontally will the person travel?

    asked by sydney on December 17, 2013
  27. physics. HELP

    A person has the ability to jump with an initial speed of 6.0 m/s at an angle of 35 degree with the ground. a. How long will the person be in the air? b. How far horizontally will the person travel?

    asked by sydney on December 17, 2013
  28. phy

    During an isovolumetric process, the pressure on the gas is doubled and the amount of gas is tripled. If the initial temperature of the gas is 300k, what is thefinal temperture.

    asked by brandy on December 4, 2010
  29. physics

    A body is thrown vertically upward from the top of the cliff 50m high. Has the body reaches the ground in 10. What is the initial velocity of body?

    asked by Anonymous on August 22, 2010
  30. physics

    You accelerate your 1500 Kg from 2 m/s to 12 m/s in 2 seconds. How do you determine the cars acceleration initial momentum final momentum change in momentum the force required to do this?

    asked by Kelley on January 11, 2016
  31. physics

    Water is running out of a faucet, falling straight down, with an initial speed of 0.50 m/s. At what distance below the faucet is the radius of the stream reduced to one-half its value at the faucet?

    asked by john on January 17, 2011
  32. Physics

    Jen drops a ball with a mass of 0.100 kg from a height of 20.0 m The initial downward velocity of the ball is 5.00 m/s. What is the kinetic energy of the ball after it has fallen 10.0 m?

    asked by Anonymous on September 13, 2012
  33. physics

    A body is thrown vertically upward from the top of the cliff 50m high. Has the body reaches the ground in 10. What is the initial velocity of body?

    asked by Anonymous on August 22, 2010
  34. Chemistry

    a compound decomposes with half life of 8seconds and is independent of concentration.how much time is consumed to convert the concentration of one sixteenth of its initial concentration?

    asked by Maria on October 23, 2012
  35. Physics

    A ball is dropped from rest from a height of 20.0 m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Anonymous on August 28, 2011
  36. physics

    An ideal gas, for which gamma=1.5, undergoes an adiabatic expansion in which its volume is doubled. if the initial temp if the gas is 27 C, what is the final temperature of the gas?

    asked by key on September 4, 2013
  37. Physics

    A ball is thrown vertically upward from a window with an initial velocity of 10m/s. if it hits the ground below the window 5.0s later, what is the height of the window...can you tell me the steps on how to do this please...

    asked by Luellen on January 19, 2013
  38. Physics

    A ball is dropped from rest from a height of 20.0m. One second later a second ball is thrown vertically downwards. If the two balls arrive on the ground at the same time, what must have been the initial velocity of the second ball?

    asked by Alex on August 31, 2012
  39. chemisty help

    for the reaction shown, compute the theoretical yield of the product in grams for each of the following initial amounts of reactants. Ti + 2F2 to make TiF4 There are 3 sub questions for this. Help me out with one, then I'll try to figure out the rest.

    asked by Becky on March 1, 2007
  40. Chemistry

    Select the true statement below. A. a spontaneous redox reaction equation will have the stronger oxidizer and stronger reducer as products B. a salt bridge should contain ions that will participate in the redox reaction C. in a voltaic cell, the difference

    asked by Nat on August 5, 2013
  41. Physics

    A body starts from rest and accelerates to a velocity of 5m/s in 20s. It then maintains this velocity for 10s and then decelerates to rest in further 10s. (a) Draw a velocity – time graph of the motion (b) Calculate the initial acceleration (iA body

    asked by Mary on October 27, 2015
  42. Is anyone here a chemistry genuis?

    The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

    asked by timmy on April 9, 2010
  43. Physics

    Calculate the change of volume that occure when a steel bearing with an initial volume of 1.8cm^3 is heated from 20°C to 80°C. Tried to use the formula DeltaV/Vinitial=Beta×DeltaT but kept getting the wrong answer though my maths could be off?

    asked by Amelia on December 5, 2017
  44. physics

    A(n) 2864 kg van runs into the back of a(n) 856 kg compact car at rest. They move of together at 7.5 m/s. Assuming no friction with the ground, find the initial speed of the van. Answer in units of m/s.

    asked by luma on December 20, 2015
  45. physics

    a projectile has a maximum range R=150m.find its initial velocity and the corresponding maximum height it reaches. at what angle should it be aimed to hit a target at the same level that is located at a distance x=100m from it?

    asked by ali on November 30, 2014
  46. physics

    a brick is thrown upward from the top of a building at an angle of 25 degrees to the horizontal and with an initial speed of 15 m/s. what is the velocity of the brick at the max height? (the answer is 13.6 but I don't understand why or how to do it) (i

    asked by Anthony on February 1, 2017
  47. physical sciences

    A child throws a coin vertically downwards from a window of high building with an initial velocity of 15 m/s.Ignore the effect of air friction. Calculate vhow lonfg the coin falls

    asked by tebogo on February 12, 2013
  48. university of saint la salle

    a projectile is fired with an initial velocity of 800 ft/s at a target of 12000 ft downrange and at an elevation of 3000 ft above the ground, neglecting air resistance, determine the angle(s) that can be used to reach the target.

    asked by scarlette abegail on December 8, 2015
  49. Physics

    Ice of mass 51.5 g at -10.2° C is added to 218 g of water at 13.5° C in a 111 g glass container of specific heat 0.200 cal/g-°C at an initial temperature of 24.9° C. Find the final temperature of the system.

    asked by BrandiB123456789 on December 10, 2013
  50. us history

    Is there a good online source of information to compare and contrast the initial formation of two states—Virginia and Pennsylvania—by evaluating and listing the similarities and differences of the first state constitution for each state.

    asked by Dave on March 24, 2010
  51. physics

    A putting green is located 240ft horizontally and 64ft vertically from the tee. What must be the magnitude and direction of the initial velocity if a ball is to strike the green at this location after a time of 4 seconds?

    asked by Jonathan on January 27, 2011
  52. U.S. History

    Is there a good online source of information to compare and contrast the initial formation of two states—Virginia and Pennsylvania—by evaluating and listing the similarities and differences of the first state constitution for each state.

    asked by John on March 23, 2010
  53. Physics

    A volleyball is launched straight up at an initial velocity of 2.3 m/s. It is then spiked by a taller player 0.8 meters above the launch height. How high did it rise, and how long did the volleyball remain in the air between the players?

    asked by Jessica on October 29, 2014
  54. Science

    A block of metal weighing 2kg is resting on a frictionless plane. It is struck by a jet releasing water at the rate of 1kg/s and at a speed of 5m/s. Find the initial acceleration of the block.

    asked by Kushagra on February 10, 2012
  55. physics

    Calculate the magnitude of the force if a ball of mass 249.9 grams, and initial velocity +16.5 m/s is struck back on the same path with a final velocity of -22.0 m/s. Assume the contact time is 3.1 milliseconds. Use 2 s.f.

    asked by allen on June 9, 2014
  56. Physics

    A projectile is fired at 32.5° above the horizontal. Its initial speed is equal to 160.0 m/s. Assume that the free-fall acceleration is constant throughout and that the effects of the air can be ignored. What is the maximum height reached by the

    asked by Anonymous on December 3, 2015
  57. physics

    A proton has an initial speed of 7·105 m/s. It is brought to rest by an electric field. a.) What is the magnitude of the voltage difference needed to bring this charge to rest? answer: 365.313*7v, WHY

    asked by dan on February 23, 2015
  58. HELP PLEASE

    A 2.0kg block of wood starts at rest and slides down a ramp. Its initial height is 12.0m. If the final velocity of the block is 13m/s, determine the energy of this system that has been turned into heat.

    asked by Student12 on March 28, 2017
  59. physics

    Jordan tosses a ball upwards with an initial velocity of 14.0 m/s. What is the displacement in meters of the ball during the first 2.5 seconds after she threw it? (don't include units in the answer, use 10.0 m/s2 for g and use the upward direction as

    asked by jen on January 12, 2012
  60. Science

    A projectile of mass 0.650 kg is shot straight up with an initial speed of 20.0 m/s. If the projectile rises to a maximum height of only 12.4 m, determine the magnitude of the average force due to air resistance.

    asked by Anonymous on December 15, 2010
  61. Maths

    The party of kejriwal walks from gwalior to Bhuvneshwar. They first walk straight for 150km and then turn 45 ddegree towards Varansi and again go straight for 120km how for have they travelled from the initial place. Please show the method.

    asked by Sanjay on March 23, 2017
  62. Math/Calculus

    Solve the differential equation y'=3t^2+4. Solve the initial value problem y(0)=3. Separation of variables! My work: dy/dt= 3t^2+4 dy= 3t^2+4 dt Then you integrate both sides. ∫ dy= ∫ 3t^2+4dt Question: is there a 1 in dy? ( ∫ 1dy)? If so:

    asked by Sarah on April 3, 2015
  63. College Chemistry

    calculate the initial concentration of SCN- ions and Fe3+ ions when a solution was prepared by mixing 3.00mL of 0.00280M KSCN, 6.00 mL of 0.250M Fe(NO3)3 and 16ml of 0.050M HNO3.

    asked by Cat on February 11, 2014
  64. physics

    When a man throws a ball vertically up his watch fall down from his hand.if the initial speep of the ball is 20m/s from a building.what will be its velocity when it reaches the ground if the height difference b/n them is 100m?

    asked by minas on April 2, 2012
  65. physics

    a football is kicked with an initial speed of 80 m/s at an angle of 30 degrees above the horizontal. A. what is the maximum height that the ball attains? b. what is the balls hang time? (how long is it in the air) c. what is the range of the ball? (how far

    asked by Ely on October 21, 2016
  66. physics

    31. (II) a shotputter throws the shot with an initial speed of 15.5m/s at a 34.0* angle to the horizontal. Calculate the horizontal distance traveled by the shots if it leaves the athlete’s hand at a height of 2.20m above the ground.

    asked by Anonymous on December 8, 2010
  67. Physics

    A 7200 lb airplane lands on an aircraft carrier with a speed of 72 ft/s. The plane is caught by an elastic band (k=998 lb/ft) that has an initial stretch of 5.6 feet. What is the maximum distance the band is stretched?

    asked by sandhu on November 29, 2010
  68. physics please help

    A hoodlum throws a rock straight down from the roof of a building 109m high. If it takes 2.40s to hit the ground below, with what initial speed was the rock thrown? Please show all work

    asked by Georgy on December 20, 2014
  69. pysics

    550 g of water (cw = 4186 J/kg.K) at 75°C is poured into an 855 g aluminum (cw =900 J/kg.K) container with an initial temperature of 11°C. What is the final temperature of the system, assuming no heat is exchanged with the surroundings? Select one: a. 75

    asked by nick on May 18, 2016
  70. math

    In a variant of the game of Nim, two players alternate taking turns in removing 1, 2, or 3 beans from a pile. The object is to remove the last bean. If the initial pile has 29 beanss, should you want to go first or second to guarantee a win?

    asked by Samual on January 11, 2011
  71. physics

    After fixing a flat tire on a bicycle you give the wheel a spin. (a) If its initial angular speed was 5.41 rad/s and it rotated 13.7 revolutions before coming to rest, what was its average angular acceleration?

    asked by aok on November 5, 2010
  72. physics

    A cannonball is fired horizontally from the top of a cliff. The cannon is at height = 70.0 above ground level, and the ball is fired with initial horizontal speed . Assume acceleration due to gravity to be = 9.80 .

    asked by Anonymous on February 4, 2011
  73. physics

    A block with initial velocity of 3 m/s slides 9m across a rough horizontal surface before coming to rest. What is the coefficient of kinetic friction? V^2=Vo^2+2ax 0=9+18x a=-1/2 Ffr=mukFn Sigma F=ma ma=mukFn

    asked by Grace on January 28, 2015
  74. medical coding

    Witch one of the following subcategories of the E/M section has separate codes for new and establised patients? A.office and other outpatients B. Hospital observation services C. initial inpatient consultation D. Emergency Department services

    asked by Robin on October 22, 2010
  75. hard math question

    When a certain drug enters the blood stream, its potency decreases exponentially with a half life of 6 hours. Suppose the initial amount of the drug present is A (sub 0). How much of the drug will be present after each number of hours? a. 6 b. 24 c. t

    asked by kristen on September 18, 2006
  76. Chemistry (Check)

    Determine the type of chemical reaction, find the limiting reagent, determine the amount of product in grams, and the amount in grams of excess reagent. Calcium nitrate is decomposed with heat to give calcium nitrite and oxygen gas. Start with 15.99g of

    asked by Anonymous on November 2, 2015
  77. Exp. Growth + Decay (HELP ME PLEASE!)

    1. Suppose you invest $1,000 in a CD that is compounded continuosly at the rate of 5% annually. What is the value of this investment after one year? two years? five years? A=1000(e^(.5x1)) = 1648.72 A=1000(e^(.5x2)) = 2718.28 A=1000(e^(.5x5)) = 12182.49 2.

    asked by Chopsticks on March 2, 2009
  78. CHemistry

    Research the role of chemistry within a specific industry. Identify chemical processes upon which the industry relies. Explore environmental impacts of the industry that are related either to the chemicals it uses or produces. Procedure Choose one of the

    asked by Tom on March 30, 2009
  79. news. significance and impact

    Chrysler Group LLC filed for an initial public offering. This move was forced by failure of the auto maker’s Italian majority owner and its main union to agree on the company’s value. Fiat SpA owns 58.5 percent of Chrysler, they don’t want a share

    asked by Blaze on September 24, 2013
  80. *Math*

    The price of the common shares of SouthCo was valued at $39.45 at the end of 2009, increased by 8.06% in 2010, and overall increased by 12.60% over the two year period 2009/2010. What was the original price of each share at the beginning of 2009? ANSWER:

    asked by *Thara* on February 2, 2010
  81. mangement science the art of modeling w/ spreadshe

    Five years ago, an automobile manufacturer started offering an extended warranty to buyers of its sport-utility vehicle.  The extended warranty covered defects occurring after the initial three-year warranty expired.  Of the 10,000 people who

    asked by melissa on February 20, 2011
  82. Chemistry

    Need to write a balanced chemical equation for the reaction between hydrogen selenide and tin. I know that the hydrogen selenide decomposes producing solid tin selenide and hydrogen gas but how would I balance that in the equation. Any help gratefully

    asked by Mac on January 7, 2007
  83. physics

    A man fires a rock of a slingshot directly upward.The rock has an initial velocity of 15m/s.How long will it take for the rock to return to the level he fired it at?

    asked by Shazz on April 4, 2013
  84. physics

    a man fires a rock of a sling shot upwards. the rock has initial velocity of 15m/s. How long will it take for the rock to reach its highest point??

    asked by lenex purre on October 9, 2014
  85. Physics

    A baseball player slides into third base with an initial speed of 3.8m/s. If the coefficient of kinetic friction between the player and the ground is 0.40, how far does the player slide before coming to rest?

    asked by Marissa on February 11, 2015
  86. physics

    You accelerate your 1500 Kg car from 2 m/s to 12 m/s in 2 seconds. How do you determine the cars acceleration initial momentum final momentum change in momentum the force required to do this?

    asked by Kelley on January 11, 2016
  87. Calculus

    suppose a car is decelerating at a constant rate of 5 m/s^2 (i.e. its acceleration is -5m/s^2) . If the car has an initial velocity of 25m/s, how far does the car travel before coming to a full stop?

    asked by Satesh Gobin on January 12, 2015
  88. Physics

    A tennis ball is thrown up with an initial speed of 22.5m/s. It is caught at the same distance above the ground. A) how high does the ball rise B) how long does the ball remain in the air?

    asked by Sandara on January 23, 2014
  89. Science

    Maddy hits a golf ball up into the air with an initial velocity of (20m/s, 49m/s). Record the horizontal velocity, & vertical velocity at each second for 10 seconds.

    asked by Anonymous on November 15, 2012
  90. Physics

    Hello, my problem is the next one: There are three objects that are launched at the Same time But with different angles( they describe proyectile motion ) . All the objects got the Same maximun height. My question is: Is the Initial velocity the Same for

    asked by Arthur on October 11, 2016
  91. Physics

    A baseball player with a mass of 79 kg slides into homeplate. The coefficient of kinetic friction between the player and the ground is μk = 0.632. If the player comes to rest after 1.04 s, what is his initial speed?

    asked by danny on March 4, 2015
  92. physics

    object a does a freefall motion from an 80-m building and object b thrown upward from the base at the same time. they collide after 2s. find the initial velocity of object b. height is 80 m.

    asked by flay on January 9, 2013
  93. physics

    A tennis ball is hit vertically upward and returns 6 sec later calculate. A) the greatest height reached by the ball. B) the initial velocity of the ball .

    asked by Anonymous on October 2, 2011
  94. physics

    An object starts sliding up a plane tilted at an angle of alpha = 5.0◦ to the horizontal. The object’s initial speed is v = 2.0m/s. How far from the start point does the object come to a stop if μK = 0.20?

    asked by Sandhya on November 7, 2008
  95. Science

    A car starts from an initial velocity of 10m/s and accelerates at 2.5m/s².how long will it take the car to reach a speed of 40m/s.. How far doea the car travel during this time?

    asked by Anonymous on November 16, 2016
  96. chem

    the volume of 0.220 mol of an ideal gas at 34°C is increased isothermally from an initial volume of 12.0 L. If the final volume is 21.5 L, calculate the entropy change for the process.

    asked by hannah on April 2, 2013
  97. Physics

    The ball is thrown vertically upwards from the height of 14.1 meters. It takes 3 seconds till the ball hits the ground. What is the initial speed of the ball?

    asked by Luise on September 13, 2012
  98. physics

    A baseball player slides into third base with an initial speed of 7.75 m/s. If the coefficient of kinetic friction between the player and the ground is 0.45, how far does the player slide before coming to rest?

    asked by john on July 13, 2015
  99. physics

    A ball thrown vertically upward is caught by the thrower after 2 seconds. Find the initial velocity of the ball and the maximum height the ball reaches???!!

    asked by mb on September 18, 2008
  100. physics

    A force of friction of 3.2N acts on a 1.1kg puck while it is sliding along a horizontal surface. If the initial velocity of the puck was 7.5 m/s , how far will the puck travel before coming to rest?

    asked by mercedes on November 8, 2010