1. Physics

    I need help with b... I found that k=.750880 for part a but I can't figure out what y would be to get potential energy. A 52 g mass is attached to a massless spring and allowed to oscillate around an equilibrium according to: y(t) = 0.8 * sin( 3.8 * t )

    asked by Anonymous on December 5, 2010
  2. Physics

    In the figure, the meterstick's mass is 0.130 kg and the string tension is 2.30 N . The system is in equilibrium. A) Find the unknown mass m. B) Find the upward force the fulcrum exerts on the stick. I found part A and the answer is .634kg but I can not

    asked by Kaitlyn on March 27, 2017
  3. Maths

    It is observed that 1 triangle can be found in the 1st figure, 3 triangles in the 2nd figure, 6 triangles in the 3rd figure, and so on. John claims that more than 100 triangles can be found in the 15th figure? Do you agree? Explain your answer.

    asked by Max on June 24, 2017
  4. PHYSICS

    You are driving through town at 14 m/s when suddenly a car backs out of a driveway in front of you. You apply the brakes and begin decelerating at 3.3 m/s2. PART B)How much time does it take to stop?After braking half the time found in part A, is your

    asked by ana22 on February 6, 2017
  5. Chemistry

    PartA: What volume of 10.0M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? TrisHCl is a weak base and the molecular weight is 157.67 g/mol. I found the solution, it is 6.67 milliliters. Part B: "The buffer from Part A is

    asked by Fay on February 4, 2017
  6. Physics - Mechanics and Ocsillatory Motion

    The force shown in the figure acts on a 1.7-kg object whose initial speed is 0.44 m/s and initial position is x = 0.27 m. the figure can be found at: [[webassign dot net forwardslash walker forwardslash 07-16 dot gif]] (a) Find the speed of the object when

    asked by Sara on October 30, 2010
  7. physics

    Stuck on solving for unknowns in part F and G help please? a) the upper loop 1 18I12+ 13I18=30 (b) the lower loop 2 =5.00I36 - 18I12= 24 (c) the node on the left side 3 I12+I36=I18 (d) Solve the node equation for I36. 4 I12 - I18 =I36 e) Using the equation

    asked by MIKE on February 23, 2015
  8. Physics

    Consider the circuit shown in the figure below. Use the following as necessary: R1 = 11.00 Ù, R2 = 1.40 Ù, and V = 6.00 V. (a) Calculate the equivalent resistance of the R1 and 5.00 Ù resistors connected in parallel. 1 Ù (b) Using the result of part

    asked by chuck on October 5, 2010
  9. Physics

    A 1200-N crate is being pushed across a level floor at a constant speed by a force of 260 N at an angle of 20.0° below the horizontal. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 260 N force is instead

    asked by Elaine Jetton on September 19, 2011
  10. Physics

    I found the first three parts of the question but I can't figure out part d. The instruments attached to a weather balloon in the figure below have a mass(m) of 5.5 kg. The balloon is released and exerts an upward force(F) of 109 N on the instruments. (a)

    asked by Sasha on January 3, 2010
  11. Superhard Riddle

    I need to solve a riddle but I can't figure it out. Apparently love/happiness/purpose is wrong! "Every single person that exists has had some of me and wanted some of me, but I am different for everyone. Sometimes I will never be found and sometimes I

    asked by the brainbusted on February 2, 2007
  12. physics

    Find the acceleration of the two blocks sliding down the incline in the figure below. (Take m1 = 1.1 kg and m2 = 1.8 kg. Indicate the direction with the sign of your answer Link to figure, copy and paste part by part Part1: //d2vlcm61l7u1fs.cloudfront.

    asked by joy on February 27, 2018
  13. Physics

    This is a four part question, I need help with the fourth part. 1. I found the Gravitational Potential Energy of a gymnast at her maximum height above a trampoline to be 400J. 2. I found the Kinetic Energy of her just before she makes contact with the

    asked by Dan on November 6, 2009
  14. geometry

    I found out the first part of which is x for the figure which was 115 degrees.They do give you the other measures of the angles which are 115,155,155,155.135,135,115.The second part of the problem say yo find the sum of the measures of the exterior

    asked by Lauren on July 23, 2011
  15. physics

    Please Help The human outer ear contains a more-or-less cylindrical cavity called the auditory canal that behaves like a resonant tube to aid in the hearing process. One end terminates at the eardrum (tympanic membrane), while the other opens to the

    asked by chiongo on November 4, 2014
  16. English

    In Fahrenheit 451, what pages are these words found on? I really need help just with this. It would be nice to help me out. Here are the words. Part 1: Abruptly, intact Part 2: certitude, darkling, dispersing, linguists, moor, televisors Part 3: scuttling

    asked by Samuel on July 13, 2015
  17. physics

    (a) calculate the number of kilocalories needed to climb 232 stair steps (116 steps per minute for 2 min.) *climbing stairs (116/min.) = energy consumption rate is 9.8 (kcal/min) * (b) calculate the gain in gravitational potential energy for a 50-kg person

    asked by sara on May 5, 2012
  18. physics

    A small mailbag is released from a helicopter that is rising steadily at 2 m/sec. a) how long does it take the mailbag to stop moving? b) how high will the mailbag have risen in the time found in part a? c) how far did the helicopter move in the time found

    asked by Hunter on February 9, 2012
  19. Math

    How many lines of semmetry are found in the following figure The figure is a rectangle

    asked by Lovely on February 6, 2017
  20. math

    1.42, 3.45, 7.01, 5.8, 6.22, 2.15 (Part A) What is the median of this set? (Part B) Explain how you found your answer.

    asked by gary on September 15, 2011
  21. physics

    A 1,080-N crate is being pushed across a level floor at a constant speed by a force of 290 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the floor? (b)

    asked by monic on October 2, 2012
  22. physics

    Part (a) of the figure below is a partial graph of the position function x(t) for a simple harmonic oscillator with an angular frequency of 1.00 rad/s; Part (b) of the figure is a partial graph of the corresponding velocity function v(t). The vertical axis

    asked by rock on February 5, 2011
  23. Algabra

    I understand the part's of algerbra, i just can't figure out why people use multiplacation tables to figure out the symbol for the block cube curriculem inside of the finder's surronding. Why do they?

    asked by Samantha on October 31, 2007
  24. physics

    In the apparatus shown in the figure (Figure 1) , m1 = 10kg and the coefficients of static and kinetic friction between m1 and the table are 0.69 and 0.32, respectively. Part A What mass of m2 will just barely set the system in motion?

    asked by tom on October 3, 2013
  25. algebra

    During a hurricane evacuation from the east coast of Georgia, a family traveled 450 miles west. For the first part of the trip, they averaged 25 mph less than the second part, where their average speed was 62mph. If the total time of travel was 9 hours,

    asked by sarah on June 14, 2017
  26. physics

    A 1,440-N crate is being pushed across a level floor at a constant speed by a force vector F of 380 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the

    asked by Uzy on October 12, 2012
  27. 6 grade math

    Coordinates are of the shape :of part a and b show these coordinates : (-2,-4), (-2,4), (2,4), (2,'4) Problem c: should I use a new figure or I can continue with same shape as part a and b . So how do I enlarge the shape: Draw a figure that is enlarge by a

    asked by Jessica on January 25, 2017
  28. English

    I have a few doubts on two sentences. 1) Can you say that a TV programme is nice or beautiful? 2) Last night was the first episode. The first episode was last night. 3) Last night there was the first episode. In sentence 2 the subject is after the verb.

    asked by Henry2 on December 10, 2011
  29. Chemistry

    A 247 lb fullback runs the 40 yd dash at a speed of 17.09 ± 0.1 mi/h. (a) What is his de Broglie wavelength (in meters)? (b) What is the uncertainty in his position? ** I found part A but I am unsure how to use this information to get part B. Any help is

    asked by Amanda on March 11, 2014
  30. physics

    A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You push on the 1.0-kg cart with a constant 2.5-N force for 0.15m . You then remove your hand, and the cart slides 0.35 m and strikes the 0.50-kg cart. By what amount does

    asked by Sean on October 23, 2014
  31. Calculus II

    (a) Use differentiation to find power series representation for f(x)=1/(1+x)^2 What is the radius of convergence? (b) Use part (a) to find a power series for f(x)=1/(1+x)^3 (c) Use part (b) to find a power series for f(x)=x^2/(1+x)^3 I found part (a) which

    asked by Anonymous on November 17, 2010
  32. Physics

    Physics Help!!!!! Maximum Kinetic Energy based on a graph? A 2.50kg ball is attached to an unknown spring and allowed to oscillate. The figure shows a graph of the ball’s position x as a function of time t.(Figure 1) Part A: What is the maximum kinetic

    asked by Darren on May 1, 2013
  33. physics

    I really need help on D part of the following problem: A clever engineer designs a "sprong" that obeys the force law F subscript e = -q(x - x subscript e)^3, where x subscript e is the equilibrium position of the end of the sprong and q is the sprong

    asked by Ashley on December 1, 2009
  34. physics

    In the figure below, 5.2 kg block A and 6.2 kg block B are connected by a string of negligible mass. Force A = (16 N) acts on block A; force B = (27 N) acts on block B. What is the tension in the string? (Express your answer in vector form.) To see the

    asked by joy on February 27, 2018
  35. math

    There are five questions on the section. These questions are for you to demonstrate your understanding of the steps related to the contents you studied this week. To earn any points in part two, you must show the steps you have used to find the answer in

    asked by harmony on August 16, 2010
  36. physics

    A car initially traveling eastward turns north by traveling in a circular path at uniform speed as in the figure. The length of the arc ABC is 214 m, and the car completes the turn in 40.0 s (Figure shows coordinate plane with point A on -y axis point C on

    asked by Emily on March 7, 2012
  37. Psychology 315

    I have ti figure out the correlation coefficient of a statistical factor o 4 personin a dextrity and anxiety test. 1 1 10, 2 1 8, 3 2 4, 4 4 2 . So I have to figure out the correlation coeficient? this is may part of the task.

    asked by Laura on February 26, 2015
  38. math

    Let S be the part of the sphere x^2 + y^2 + z^2 = 25 that lies above the plane z = 4. Let S have constant density k. (a) Find the center of mass. (b) Find the moment of inertia about the z-axis. so far I have found that the magnitude of r(theta)x r(thi)=

    asked by Anonymous on December 8, 2014
  39. statistics

    A city survey found that 47% of teenagers have a part time job. The same survey found that 78% plan to attend college. If a teenager is chosen at random, what is the probability that the teenager has a part time job and plans to attend college?

    asked by Olivia on October 11, 2011
  40. Chemistry. Percent mass...

    A 1.009 g mixture of the solid salts Na2SO4 (molar mass= 142.04) an Pb(No3)2 (molar mass= 331.20) form an aqueous solution with the precipitation of PbSO4 (molar mass= 303.26). The precipitate was filtered and dried and its was was found to be .471 g. The

    asked by Sarah on November 22, 2008
  41. physics

    A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane as shown in the figure (Intro 1 figure) . Determine the speed of the block after it has

    asked by gdfg on May 28, 2009
  42. microbiology

    Where and what is patient zero in the H1N1 infection? Use this info to discuss primary infections vs. secondary infections i can figure out the second part if anyone can tell me the first part thanks :)

    asked by lyne on October 15, 2009
  43. Chemistry

    PartA: What volume of 10.0M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? TrisHCl is a weak base and the molecular weight is 157.67 g/mol. I found the solution, it is 6.67 milliliters. Part B: "The buffer from Part A is

    asked by Linda on April 24, 2009
  44. james patterson

    patterson roses are red i have to write a short essay on one aspect of the book that i perceived as the most interesting, though - provoking, intriguing..but i cannot just take one part and write about it.maybe someone has some idea?which part of the story

    asked by jean8789 on January 7, 2007
  45. math

    The figure shown is a rectangle. The green shape in the figure is a square. The blue and white shapes are rectangles, and the area of the blue rectangle is 40 square inches. Enter an expression for the area of the entire figure that includes an exponent.

    asked by Roopsy Ghosh on April 13, 2017
  46. Math - Please Help

    While rummaging in his great aunt's attic, Bernard found a small figurine that he believed to be made out of silver. To test his guess, he looked up the denisty of silver in his chemistry book and found it to be 10.5 g/cm^3. He found that the figure had a

    asked by Barb on February 18, 2013
  47. physics

    A remote-controlled toy car of mass 2.2 kg starts from rest at the origin at t = 0 and moves in the positive direction of an x axis. The net force on the car as a function of time is given by the figure. (a) What is the time rate of change of the momentum

    asked by freedom on November 7, 2014
  48. Geometry

    A farmer is estimating the surface area of his barn to find how much paint he needs to buy. One part of the barn is triangular as shown. The base of the triangle is 22 meters long Both angles on either side connecting the base to each leg is 30 degrees.

    asked by SkatingDJ on April 5, 2016
  49. Calculus

    (a) Find the tangent line approximation for sqrt(9+x) near x=0. (b)Find a formula for the error, E(x),in the tangent line approximation found in part (a). For part A, is the answer y=3. For part b, I don't understand , any help would be greatly

    asked by George on November 5, 2008
  50. Chemistry

    I was given a question on an assignment and I can't figure it out. The question is A student collects 90ml of oxygen gas over water at 25c and a total pressure of 99.3kPa from the decomposition of KClO3. 2KClO3(s)-> 2KCl(s)+ 3O2 a) How many mols of O2 were

    asked by Krissy on March 7, 2010
  51. Math

    Are these correct with the lines y=0.15x+0.79 0.11x-y=-0.85 The line represents an estimate of the average cost of gasoline for each year. The line estimates the price of gasoline in January of each year (Bureau of Labor Statistics, 2006). a)Do you expect

    asked by Anonymous on June 19, 2008
  52. statistics

    a survey from a research firm found that 30% of teenage consumers receive their spending money from part-time job.if five teenagers are selected at random,find the probability that only three of them will have part-time jobs.

    asked by kimasni on October 26, 2010
  53. Sentence Fragments

    Richard III supposedly had the young princess murdered. Found out what really happened to them. In order to fix the fragment here, you'll need to leave the first part alone (it's a complete sentence) and fix the second part. It has no subject. Let us know

    asked by gladys on December 18, 2006
  54. Algebra help please

    Part A: Divide (16x^5y^4 + 6x^3y - 2x^2y - 24x^2y^4) by -2x^2y. Part B: How would your answer in Part A be affected if the x2 variable in the denominator was just an x? Part C: What is the degree and classification of the polynomial you got in Part A? Is

    asked by Andrea on March 18, 2015
  55. Physics

    Someone posted the question below, stating that they knew the answer to part A but needed help with part B. Well even with the answer for A, I can't figure it out! Can you take a step back from the question below to show me the steps for solving part A?

    asked by Anna on October 15, 2008
  56. High School Geometry

    The figures in (a) and (b) below are made up of semicircles and quarter circles; the figure in (c) shows a quarter of a circle in a square. Find the area and the perimeter of each figure in terms of π. since I can't put a URL to the pic I will try to

    asked by Alexa on February 24, 2017
  57. MATH

    Q: Marissa Is researching information about martial arts students. She found that 7 out of 12 martial arts students practice each day. there are 144 students at her school. Part A: Predict how many students practice every day. Part B: What Is The Sample

    asked by loli on June 9, 2018
  58. Chemistry

    H6P6: Urbium Oxide First Part of the Question: Urbium (Ur) is an upscale element found in big cities. Its oxide (UrO2) is not very stable and decomposes readily at temperatures exceeding 66∘ C. The figure below shows how the rate of reaction varies with

    asked by Odesa on November 29, 2012
  59. chemistry

    A solution prepared by mixing 47.1 mL of 0.4 M AgNO3 and 47.1 mL of 0.4 M TlNO3 was titrated with 0.8 M NaBr in a cell containing a silver indicator electrode and a reference electrode of constant potential 0.175 V. The reference electrode is attached to

    asked by martini on November 9, 2013
  60. Math

    Glucose is a common type of sugar. One glucose molecule is made up of 24 atoms. 1/4 of the atoms are carbon, 1/2 are hydrogen atoms, and 1/4 are oxygen atoms. Part A: How many oxygen atoms are there in 50 atoms? Part B:Explain how you found your answer for

    asked by Sherman on April 19, 2014
  61. Integral Calculus

    We can use this power series to approximate the constant pi: arctan(x) = (summation from n = 1 to infinity) of ((-1)^n * x^(2n+1))/(2n+1) a) First evaluate arctan(1) without the given series. (I know this is pi/4) b) Use your answer from part (a) and the

    asked by Matt on December 1, 2016
  62. AP AB Calculus

    Linear approximation: Consider the curve defined by -8x^2 + 5xy + y^3 = -149 a. find dy/dx b. write an equation for the tangent line to the curve at the point (4,-1) c. There is a number k so that the point (4.2,k) is on the curve. Using the tangent line

    asked by Katie G on December 18, 2014
  63. AP Pysics

    You are the lead scientist for a criminal investigation unit. Your team has found what might be the gun that caused the murder.Unfortunately the bullet that identifies the gun can not be found,but there is enough evidence that if you can figure out the

    asked by Keshia on October 25, 2006
  64. english

    I am trying to figure out details as to when groom service (short story) has taken place any help with examples would be great or even a lead? Ive read the story numerous times and I know it was before th 1940s but I cant figure out further.. I have found

    asked by brandy on June 20, 2014
  65. Chemistry

    Calculate the [H3O+] and pH of each polyprotic acid solution. (b) 0.116 M H3C6H5O7 I did part (a) just fine, but for some reason can't figure (b) out. Can someone help me with just the [H3O+] part to get me started? I already got 9.3e-3 and 1.4e-3 without

    asked by DeeDee on April 6, 2013
  66. physics

    Part 1 A motorist traveling at 17 m/s encounters a deer in the road 48 m ahead. If the maximum acceleration the vehicle’s brakes are capable of is −5 m/s^2, what is the maximum reaction time of the motorist that will allow her or him to avoid hitting

    asked by amanda and leah on September 9, 2012
  67. Algebra

    Suppose you are having a birthday party at the local bowling alley. You are trying to figure out how many people you can afford to invite. b. How much money are you willing to spend? c. Set up an equation that shows the inverse relationship between the

    asked by Needs Help! on May 24, 2018
  68. AP Physics

    You are the lead scientist for a criminal investigation unit. Your team has found what might be the gun that caused the murder.Unfortunately the bullet that identifies the gun can not be found,but there is enough evidence that if you can figure out the

    asked by Keshia on October 25, 2006
  69. HORRIBLE!

    Hello, I took my ACT test today, and I think I epicly failed the english part. The part where you had to correct the underlined sentence was really hard. I would narrow it down to 2 answers, but obviously only one can work. Both of them looked correct to

    asked by Chopsticks on April 5, 2009
  70. Physics

    The intensity of sunlight reaching the earth is 1360 W/m^2 Part A: Assuming all the sunlight is absorbed, what is the radiation-pressure force on the earth? Give your answer in newtons. Part B: Give your answer as a percentage of the sun's gravitational

    asked by Jill on April 25, 2008
  71. Physics

    Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. T = 11000 N A. What force would you have to exert perpendicular to the center of the rope to produce a force of 11000 N on the car if

    asked by Stephanie on October 9, 2014
  72. Physics

    Three blocks are located on a horizontal frictionless table. They are connected by a massless cord, as shown in the figure, and pulled to the right. The masses of the three blocks are m1 = 38 kg, m2 = 37 kg, and m3 = 17 kg. a.) The pulling force is equal

    asked by Carly on October 8, 2015
  73. Physics

    Two point charges are placed on the x axis. The charge +4q is at x=3.00 m, and the -q charge is at x=-3.00. a) There is a point on the x axis between the two charges where the electric potential is zero. Where is this point? Found it to be: -1.80m b) The

    asked by Rachel on February 12, 2011
  74. physics

    Can somebody shows me how to get to the answer key? The answer for a) is 1.5, b) rP is 1.34AU and rA is 2.01AU and c) is .335AU Copy and past this link part by part as it is to see the figure: part1: webassign. part2: net part3: /katzpse1/7-p-009.gif

    asked by joy on February 20, 2018
  75. Statistics

    I need help with this problem. I think I have some of the answers right but I'm not sure. There is a data set consisting of 33 whole-number observations. Its five number summary is (16, 20, 22, 30, 46) 1. How many observations are stricty less than 22? I

    asked by Samantha on September 23, 2009
  76. math

    A rectangular field is to have an area of 500 sq m. a) write the perimeter, P, of the field as a function of the width, w. b) find the domain of the function in part a. c) use a graphing calculator to sketch the graph of the function in part a. d) describe

    asked by Meli on January 29, 2014
  77. calculus

    The function f has derivatives of all orders for all real numbers x. Assume f(2)=-3, f'(2)=5, f''(2)=3, and f'''(2)=-8. The fourth derivative of f satisfies the inequality, the (absolute value of f''''(x))

    asked by Meredith on March 17, 2007
  78. Physics

    Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure to pull it out. (a) What force in newtons would you have to exert perpendicular to the center of a rope to produce a force of 10,000 N on the car if the

    asked by Sara on November 7, 2016
  79. Science Paragraph Check

    In this project I done about cells I learn about the job of each part of the cell. I also learn about where it’s found. As I was doing some research on this project I learn so many things. For example , vacuoles are water-filled storage spaces found in

    asked by Laruen on January 17, 2012
  80. physics

    Driving in your car with a constant speed of v= 22 m/s, you encounter a bump in the road that has a circular cross-section, as indicated in the figure (Figure 1) . Part A If the radius of curvature of the bump is 52 m, find the apparent weight of a 66-kg

    asked by alex on March 28, 2017
  81. Physics

    Analyze the flight of a projectile moving under the influence of gravity (mg) and linear, i.e., laminar- flow drag (fD = bv, with b > 0 constant). Neglect \Phase I"; assume the projectile is launched from the origin at speed v1 and angle 1 above the

    asked by Alyssa on March 2, 2015
  82. AP Physics B

    I have one our part question left that I just don't understand! Please help me!! Part 1 An 11.6 kg block of metal is suspended from a scale and immersed in water as in the figure. The dimensions of the block are 12.9 cm × 9.7 cm × 9.7 cm. The 12.9 cm

    asked by Taylor on January 16, 2013
  83. math, bobpursley

    so how did you say to do part c c) if there is 2 woman and 5 men in the group, how many delegations would include at least 1 woman? would it be the answer to part a minus the number of 2 man pairs which will give me: 21 - 5combination 2 = 21-10 = 11 Ooops,

    asked by student on July 6, 2007
  84. physics

    U(J) 6 | | 4 | \ | 2 \ ______/ \ / \_____/ 0 1 3 5 7 8 x(cm) Best I could do in drawing a graph!! A 10 g particle has the potential energy shown in the figure above. Part A: How much work does the force do as the particle moves from 2 cm to 6 cm? W = ? J

    asked by Ashley on December 1, 2009
  85. algerbra

    sasha researched the size of zoos in her state. she found that the zoo in the north part of the state is almost twice as large as the zoo in the south. she also found that the zoo in the south part of the state has 200 fewer than twice the number of

    asked by ann on January 10, 2014
  86. Statisitics

    Identify the population, and the sample in each of the following: A small college has 275 tenured full and associate professors. Twenty professors are randomly chosen to take part in a survey about the incorporation of technology into their teaching

    asked by Terri on October 16, 2014
  87. Statistics

    For a math assignment we need to design a dice roll game with different expected values of winning. The game should require a player to make a bet on the sum of one roll of two dice. If the dice sum to that number, the player wins; otherwise, he loses. We

    asked by Jaime on February 1, 2012
  88. Chemistry

    (a) A sample of cesium metal reacted completely with water, evolving 48.7 mL of dry H2 at 24°C and 774 mmHg. What is the equation for the reaction? Include states-of-matter under SATP conditions in your answer. Use the lowest possible coefficients. (b)

    asked by Lance on June 18, 2011
  89. Statistics

    a. In a random sample of 500 observations , we found the proportion of successes to be 48%. Estimate with 95% confidence the population proportion of successes. B. Repeat part (a) with N=200 C. Repeat part (a) with N=1000 I need to know how to do this in

    asked by Christie on July 18, 2012
  90. chemistry

    H2(g) + Cl2(g) HCl(g) Consider the unbalanced equation above. 3.95 L of H2 and 1.00 L of Cl2 are reacted under the same conditions of temperature and pressure. (a) How many liters of HCl will be produced? (b) How many liters of reactant are in excess? i

    asked by olivia on October 21, 2014
  91. Physics

    Suppose your car was mired deeply in the mud and you wanted to use the method illustrated in the figure below to pull it out. (a) What force would you have to exert perpendicular to the center of a rope to produce a force of 14,500 N on the car if the

    asked by Anonymous on October 6, 2016
  92. Chemistry

    In the study of biochemical processes, a common buffering agent is the weak base trishydroxymethylaminomethane, often abbreviated as Tris. At 25 C, Tris has a pKb of 5.91. The hydrochloride can be abbreviated as Tris HCl. What volume of 10.0 M NaOH is

    asked by Alexandra on November 14, 2010
  93. physics help

    An auto race is held on a circular track. A car completes one lap in a time of 16.9 s, with an average tangential speed of 48.1 m/s. Find the following (a) the average angular speed (b) the radius of the track i found part a which was .3716 but need help

    asked by william on November 19, 2010
  94. physics please help !

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  95. physics

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  96. physics please help !

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  97. physics

    In the figure the coefficient of static friction between mass (MA) and the table is 0.40, whereas the coefficient of kinetic friction is 0.28 ? part a) What minimum value of (MA) will keep the system from starting to move? part b) What value of(MA) will

    asked by ally on May 8, 2012
  98. Math

    I just want to make sure I'm right. Representing a portion of another portion can be thought of as finding a part of apart. For each of the parts described below figure out what part of the whole is described. for each problem show at least one picture or

    asked by Jessica on February 10, 2017
  99. Math

    Input, 0,1,2,3 output: 5,7,15,44 What is the Domain and What is the Range? How would I figure this out? Can anyone explain on how they found them?

    asked by June on September 18, 2010
  100. biology

    The micelle and the liposome are two structures formed by phospholipids in an aqueous environment. They are represented here in cross section. The letters A, B, C, and D represent different regions. Four different molecules are shown below. For each,

    asked by selly on March 13, 2013