1. AP Physics B

    The college board website only has exams from 1999 to last years. Some how my teach has gotten ahold of the free response questions from like 1980 and he said that they are open to the public and can be found on the internet. I can't seem to find were they

    asked by Jeff on November 17, 2009
  2. physics

    A hiker makes four straight-line walks A 31 km at 299 degrees B 32 km at 210 degrees C 29 km at 59 degrees D 22 km at 150 degrees in random directions and lengths starting at position (41 km, 41 km). Which vector will return the hiker to the starting

    asked by Joe Rogers on September 20, 2012
  3. Calculus

    Use Newton's Method to approximate the root of the function f(x)=e^x-5x when the intial point chosene is x1=1.5. Do two iterations. This is what I did, but not working. f'(x)=e^x-5 x2=1.5 - (e^1.5-(5(1.5))/e^1.5 -(5)) =1.5-(4.4817-7.5/4.4817-5)=1.5-5.8234=

    asked by Janet on April 17, 2011
  4. Physics

    A cannon is mounted on a truck that moves forward at a speed of 5 m/s. The operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. The muzzle velocity of the cannon is 50 m/s. What angle from the

    asked by Brian on February 17, 2013
  5. English

    What type of poem is this ? We found his flag one bitter morning And knew our hopes had come to woe. We had come pursuing glory But ended freezing in the snow. 1. The stanza of the poem offers an example of (1 point) slant rhyme. end rhyme. perfect rhyme.

    asked by Chloe on December 5, 2012
  6. stats help please

    Suppose that one of every 100 people ina certain community is infected with HIV. You want to identify an HIV-positive person ina study of an experimental new drug. How many individuals would you expect to have to interview in order to find the first person

    asked by david on January 23, 2007
  7. finance

    You have finally saved 10,000 and are ready to make your first investment. You have the three following alternatives for investing that money: 1) Captial cities ABC Inc. bonds with a par value of $1000 that pays an 8.75 percent on its par value in

    asked by Chris on June 7, 2012
  8. math

    You have finally saved 10,000 and are ready to make your first investment. You have the three following alternatives for investing that money: 1) Captial cities ABC Inc. bonds with a par value of $1000 that pays an 8.75 percent on its par value in

    asked by Anonymous on December 6, 2012
  9. mathematics

    points P and Q are both in the line segment AB and on the same side of its mid point p divides AB in the ratio 2:3 and Q divides in the ratio 3:4. if PQ=2 then find the length line segment AB

    asked by mahe on August 29, 2016
  10. Calc

    Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function and the tangent line you found to see whether it looks correct. (1/x^3 -x)^2 at x= 2

    asked by Mike on February 21, 2012
  11. Calculus

    If f(x)=(3x)/(1+x^2) find f′(4). Use this to find the equation of the tangent line to the curve y=3x1+x2 at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: and where b is:

    asked by Allison on September 29, 2011
  12. Science

    A ball has a potential energy of 180 J and a kinetic energy of 0 J. After falling 2m, it has a potential energy of 135J. What is its kinetic energy at this point? PLEASE ANSWER THIS I'M STUCK!

    asked by Micheal on January 19, 2012
  13. calculus

    If the graph of f " (x) is continuous and has a relative maximum at x = c, which of the following must be true? The graph of f has an x-intercept at x = c. The graph of f has an inflection point at x = c. The graph of f has a relative minimum at x = c None

    asked by Bree on May 20, 2016
  14. math

    Two trains are traveling the same direction, train a is going 60 mph and train b is going 70 mph, after one hour how long will it take train a to reach the point train b was at the hour marker.

    asked by kyle on September 2, 2012
  15. Math (check answers)

    1. Write the equation of a line in slope intercept form that is parallel to y = 3x - 2 and passes through the point (-2, 1) y = -3x-5? 2. Write the equation of the line that passes through (2, 1) and is perpendicular to 5x + y = 9. x + 5y = 3?

    asked by K on December 15, 2017
  16. math

    A 50 foot ladder is placed against a building so that it touches a point 40 feet above the ground. The distances ( in feet ) from the foot of the ladder to the building is a. 10 b. 20 c. 30 d. 45 e. 60 please answer and explain

    asked by thomas on April 6, 2014
  17. teachers aide classroom management techniques

    which of the following is a characteristic of a sane message? (a)it uses you messages rather than i messages (b)it labels the behavior rather than the student(my answer( (c)it labels the student rather than the behavior (d)it uses a little sarcasm to get

    asked by susue on August 25, 2011
  18. math

    what is the place and value of the underlined digit in 803. the underlined digit is 3 It's in the one's place the way to think about it is like this: in between the ones and the tenths is the decimal point. Hundreds/tens/ones.tenths/hundreths

    asked by Brandon on August 21, 2007
  19. Math - trigonometry

    A bridge is 70m long. From the ends of the bridge the angles of depression of a point on a river under the bridge are 41 degrees and 48 degrees. How high is the bridge above the river?

    asked by anonymous on January 10, 2010
  20. ChemistryPRELABS

    Mixtures of oxygen and nitrogen show almost ideal boiling behaviour. Nitrogen boils at 77.36 K and oxygen boils at 90.30 K. What is the boiling point of air?

    asked by Ami on November 9, 2015
  21. Science

    In ferns, the sporophyte produces(1 point) A.)CONES,WHICH GROW INTO A GAMETOPHYTE B.)GAMETES, WHICH GROW INTO A GAMETOPHYTE C.)SPORES, WHICH GROW INTO A GAMETOPHYTE D.)SEEDS, WHICH GROW INTO A GAMETOPHYTE ?

    asked by DJ on September 28, 2015
  22. math

    a car goes to 10km due south,then it turns west and goes 5 km.Now it turns back and goes 10km due north.Where is the car from starting point?

    asked by lucifer on October 17, 2014
  23. Chemistry

    Why is the boiling point of HCL gas (permanent dipole-dipole interactions) lower than that of CO2 gas(temporary dipole-dipole interactions)?

    asked by Olympia Xavier on May 8, 2010
  24. Calc

    Find the equation of the normal line to the curve y=2x-3x^2 at the point (-3,-33) is it a. x-16y+339=0 b. x+20y+339=0 c. x+20y+663=0 d. x-16y+663=0

    asked by Gretchen on November 29, 2011
  25. physical

    Ok, let's say Bob serves the ball to Sally, the ball didn't hit the table but it could've if Sally had let it. Would that be Bob's point of should they just keep playing? (Not for HW, just playing this in class) Thanks!!!!

    asked by anonymous on September 10, 2009
  26. calculus

    If f(x)=4x^(5/2), find f'(4) Use this to find the equation of the tangent line to the curve y=4x^(5/2) at the point (4,f(4)) . The equation of this tangent line can be written in the form y=mx+b where m is______ and where b is _____

    asked by cheech on February 28, 2011
  27. calculus

    Find the tangent line to the curve xy3+2y−2x=1 through the point (x,y)=(1,1). (Enter ∗ for multiplication: type 2*x for 2x. Enter / for division: type 1/2 for 12.) Tangent Line y=

    asked by JuanPro on August 12, 2015
  28. Geometry

    Please write a paragraph proof for this statement. Point Y is the midpoint of segment XZ. Z is the midpoint of segment YW. PRove that segment or line XY is congruent to segment or line ZW.

    asked by Shamaree on October 24, 2010
  29. Geometry

    Please write a paragraph proof for this statement. 30: Point Y is the midpoint of segment XZ. Z is the midpoint of segment YW. PRove that segment or line XY is congruent to segment or line ZW.

    asked by Shamaree on October 24, 2010
  30. statistics

    1. I took a sample of the grade point averages for students in my class. For 25 students, the standard deviation of grade points was 0.65 and the mean was 2.89. The standard error for the sample was:

    asked by CHIMI on August 11, 2013
  31. Human Services Administrator

    I have to complete an internet search to find 3 examples of mission statements for human services organizations. Then I have to write 1050-1400 word paper evaluating the mission statements. Show how each one of the mission statements does or does not meet

    asked by Marie on May 10, 2007
  32. PEER REVIEW

    What is the purpose of revising and editing an academic paper. 2. what are the advantages for both the reviewer and writer of peer reviews? How would encourage a reluctant peer reviewer. Thank you for using the Jiskha Homework Help Forum. Since I just

    asked by DEON on August 22, 2006
  33. Physics

    A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

    asked by Lina on October 6, 2011
  34. math

    The table below shows the results of 30 spinds of a game spinner. Hexagon=8spins Triangle=10 spins Quadtrilateral=12 spins Based on the results,how many times will the spinner point to the triangle in the next 6 spins? A.2 B.4 C.6 D.8 A?

    asked by ♫♫Colton♫♫ on May 21, 2012
  35. Physics

    A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

    asked by Lina on October 6, 2011
  36. Calculus

    A cubic polynomial function f is defined by f(x) = 4x^3 + ax^2 + bx + k? A cubic polynomial function f is defined by: f(x) = 4x^3 + ax^2 + bx + k where a, b, and k are constants. The function f has a local minimum at x= -1, and the graph of f has a point

    asked by Leanna on February 9, 2011
  37. Calculus

    How do you use imlicit differentiation to differentiate e^(xy)? I have the problem "use implicit differentiation to find dy/dx. e^(xy)+ x^2 - y^2 = 10. I've gotten to the point whereI have d/dx(e^(xy)) + 2x - 2ydy/dx = 0, but I can't go any further because

    asked by Marissa on May 22, 2012
  38. chemistry

    the heat of vaporization of liquid oxygen at 1.01325bar is 6820JMol at its boiling point,-183C, at that pressure. For the reversible vaporization of liquid oxygen calculate (a)q per mole (b) change in U (c) change in S (d) change in G

    asked by samjid on January 6, 2013
  39. Physics

    A ball thrown horizontally from a point 26.0 m above the ground strikes the ground after travelling a horizontal distance of 23.0 m. With what speed was it thrown? Which equation should I use? V= DeltaX / Delta T A= Delta V / Delta T Horizontal motion

    asked by Bex on September 19, 2016
  40. Chemistry

    When comparing the boiling points of two compounds,one is a gas and the other is a liquid,is there anything like the liquid will have a lower boiling point than the solid? The molecular mass of the liquid is lower than the solid and they have the same type

    asked by Shenaya on July 31, 2017
  41. math

    a student’s grade in a class is simply the mean of five 100-point exams a. If the student has grades of 77, 73, 97, and 89 on the first four exams, what is the students’ grade before taking the last exam? b. What is the lowest score that the student

    asked by Debbie on March 14, 2016
  42. Physics please help!

    The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)

    asked by linds on April 10, 2012
  43. Physics

    A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

    asked by Lina on October 6, 2011
  44. chemistry

    A mass of 7 kg of water is raised from 8 degrees C to the boiling point 100 degrees C. How much heat is required? The specific heat of water is 1000 cal/kg · degrees C. Answer in units of cal

    asked by please help on April 24, 2012
  45. Physics

    1)Consider a contour map for the region around a hilltop. a) at some point on the map, in which direction ( relative to the contour lines) is the direction of steepest ascent. b) what can you say about spacing of contour lines versus the steepness of the

    asked by Sarah (C) on July 10, 2011
  46. Calculus

    A cubic polynomial function f is defined by f(x) = 4x^3 + ax^2 + bx + k? A cubic polynomial function f is defined by: f(x) = 4x^3 + ax^2 + bx + k where a, b, and k are constants. The function f has a local minimum at x= -1, and the graph of f has a point

    asked by Leanna on February 8, 2011
  47. math

    Tony stark and captain america won the basketball game 40 to 20. Tony says their team scored 2 points for every 1 point the other team scored. Is tony stark correct? Show ur work

    asked by hello help please ): on February 22, 2016
  48. Physics

    A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

    asked by Lina on October 6, 2011
  49. physics

    The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)

    asked by linds on April 10, 2012
  50. Physics

    A long solenoid ( radius = 1.8 cm) has a current of a 0.33 A in its winding. A long wire carrying a current of 22 A is parallel to and 1.2 cm from the axis of the solenoid. What is the magnitude of the resulting magnetic field at a point on the axis of the

    asked by Lina on October 6, 2011
  51. physics!

    The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b)

    asked by Sarah on April 10, 2012
  52. Math

    On graph paper, use a table to make a complete graph of y = x2 − 2x − 8. Homework Help ✎ Write the coordinates of the y-intercept. What is the connection between the y‑intercept and the equation y = x2 − 2x − 8? Write the coordinates of the

    asked by Jane on January 18, 2018
  53. Math

    Pete is watching his ant farm one afternoon and observes that two ants walk away from each other at a 90 degree angle. After a few seconds, the first ant has traveled 3 inches and the second ant has traveled 4 inches. How far apart are the two ants at that

    asked by Blake on December 13, 2008
  54. Literature

    In the story Frankenstein, Was it really the monstor who killed Victor's little brother William? Because that's what Victor says but at that point in the story the monstor has not told Victor he will get back at him. I know it's not Justine so it must be

    asked by mysterychicken on December 11, 2008
  55. physics

    a dog runs from point a to b to c in 4.00s. find the dog's average velocity over this 4.00 second interval find the dog's average speed over this 4.00s intervals I can't remember the formula off hand. Thanks for your help in advance.

    asked by deb on September 17, 2013
  56. physic (PLEASE READ)

    a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and

    asked by taylor on November 18, 2011
  57. Social Studies

    1. Which region was home to the Sioux? (1 point) the Eastern woodlands of North America Southern Mexico and Central America the Pacific Northwest of North America the Central plains of North America******

    asked by pls help on October 2, 2018
  58. math

    The table below shows the results of 30 spinds of a game spinner. Hexagon=8spins Triangle=10 spins Quadtrilateral=12 spins Based on the results,how many times will the spinner point to the triangle in the next 6 spins? A.2 B.4 C.6 D.8 A?

    asked by ♫♫Colton♫♫ on May 21, 2012
  59. Physics

    What is the maximum speed of a 3.40g particle that oscillates between x =2.0mm and x =8.0mm in the figure? (Figure 1) Description of Figure: Parabola with the lowest point at (4,1) parabola starts at(2,5) and ends at (8,5) Y-axis is U(J) X-axis is x(mm)

    asked by Dib on November 1, 2014
  60. Math

    A tunnel under a river is 196.8 ft below the surface at its lower point. If the angle of depression of the tunnel is 4.962 degrees, then how far apart on the surface are the entrances to the tunnel in feet? I have tan 4.962= 196.8/x but I think I did

    asked by Rose on February 5, 2009
  61. Physics

    What is the maximum speed of a 3.40g particle that oscillates between x =2.0mm and x =8.0mm in the figure? (Figure 1) Description of Figure: Parabola with the lowest point at (4,1) parabola starts at(2,5) and ends at (8,5) Y-axis is U(J) X-axis is x(mm)

    asked by Dib on November 1, 2014
  62. physics

    a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and

    asked by taylor on November 18, 2011
  63. Chemistry

    If the cyclohexane is initially contaminated with a soluble non-reactive, non-volatile substance, will the change in freezing point, delta Tf, be a. Higher b. Lower c. The same as the uncontaminated cyclohexane? There will be no change hence delta Tf will

    asked by Cassie on March 22, 2011
  64. phyics (PLEASE PLEASE READ)

    a model rocket rises with constant accerleration to a height of 3.2 m, at which point its speed is 26.0 m/s. (a) how much time does it take for the rocket to reach this height? (b) what was the magnitude of the rocket's acceration? (c) find the height and

    asked by taylor on November 20, 2011
  65. English comp

    I need suggestions on how I could rephrase these without being repetitive and that the point comes across. Thank you (: 1. Alcohol is a dangerous recreational substance that many Americans very much abuse to what their body could take. 2. The reason why

    asked by A on December 11, 2017
  66. English - Ms. Sue help

    I don't understand help 1. A person who translates speeches would have to know how to (1 point) draw pictures. use a microphone. speak many languages. 2. If a horse came barreling across the field, what was the horse doing? (1 point) leaping in the air

    asked by Randey on January 15, 2013
  67. Maths

    How would you decide the probability of each of the following? Choose A equally likely outcomes, or B experimental evidence . Write A and B on the answer line. Questions: First: A die is thrown. What proportion of times is 6 scored? Second: One hundred

    asked by Harjeet on October 31, 2016
  68. College Physics

    1. A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/6. What was the launch angle? 2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 61.0° above the horizontal and

    asked by Lizz on October 3, 2012
  69. Math connexus

    Which correctly names a Ray shown in the figure? 1)ap 2) ec** 3)NH 4)Ce Which line is parallel to line b in the diagram 1)ep** 2)al 3)le 4)ap The walls of a room are representations of what basic element of geometry 1)point 2)line 3)plane 4)Ray Use the

    asked by Oliver on January 30, 2018
  70. Physics

    Consider a conducting spherical shell with inner radius b = 0.862 m and outer radius c = 1.21 m. There is a net charge q2 = 3.82 ìC on the shell. At its center, within the hollow cavity, there is a point charge q1 = 2.89 ìC. Determine the flux through

    asked by Alicia on March 20, 2011
  71. Physics

    You are taking a road trip to the beach for Spring Break. You leave at 12:00 pm. At 12:30 you stop for lunch 10 miles down the roads. You get back on the road and travel 75 more miles and realize that you need to stop for gas. You notice that it is now

    asked by Landon on April 8, 2009
  72. Dynamics

    A stone has an initial velocity of 100 fps up to the right at 30 degrees with the horizontal. The components of the acceleration are constant at ax=-4 fps^2 and ay=-20 fps^2. Compute the horizontal distance covered until the stone reaches the point 60 ft

    asked by Carl on July 14, 2018
  73. physics

    In an historical movie, two knights on horseback start from rest 72.6 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.280 m/s2, while Sir Alfred's has a magnitude of 0.250 m/s2. Relative to Sir

    asked by randy on October 3, 2011
  74. Math

    Two surveyors are on opposites sides of a swamp. To find the distance between them, one surveyor locates a point T that is 200 meters from her location at pont p. The angle of sight from T to the other surveyor's position, R, measure 72 degrees for angle

    asked by Tareena on May 17, 2008
  75. English 1

    I have to write a dumb dinosaur story. The textbook says you'll need to invent a way for humans to enter the story, but that's not necessarily so -- perhaps your story is from the point of view of a dinosaur or a prehistoric plant or even a volcano Write

    asked by surfsupmel on April 17, 2011
  76. physics

    A circular disc of radius 'r' carries uniform charge distribution of surface charge density 'A'. If the disc lies on the z = 0 plane, with its axis along the z axis, find the electric field at a point P, along the z axis that passes through the center of

    asked by Anupam on September 18, 2014
  77. physics

    In an historical movie, two knights on horseback start from rest 79.0 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.319 m/s2, while Sir Alfred's has a magnitude of 0.391 m/s2. Relative to Sir

    asked by Kristyn on March 19, 2015
  78. Math

    Two surveyors are on opposites sides of a swamp. To find the distance between them, one surveyor locates a point T that is 200 meters from her location at pont p. The angle of sight from T to the other surveyor's position, R, measure 72 degrees for angle

    asked by Tareena on May 17, 2008
  79. Chemistry

    Would it be better to use an unknown acid sample of a size that should require 10.00 milliliters or one that would require 15.00 milliliters of titrant? Explain. I have been thinking about this question... And I don't believe it matters what measurement of

    asked by K on March 26, 2011
  80. Physics

    An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers. The plane is traveling horizontally at 40.0 m/s at a height of 100 m above the ground. a) How far horizontally from the dropping point does the package strike

    asked by Catherine on November 1, 2010
  81. Algebra

    Barbara and her husband take a trip on a highway, a distance of 600 miles. They intend to average 60 m.p.h. and take 10 hours. However, they take 11 hours due to construction. When they encounter the construction, they reduce their speed to 40 m.p.h. and

    asked by Kevin on November 18, 2012
  82. physics

    In an historical movie, two knights on horseback start from rest 90.6 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.340 m/s2, while Sir Alfred's has a magnitude of 0.346 m/s2. Relative to Sir

    asked by aj on December 13, 2011
  83. Phyiscs

    A lbock is given an intial speed of 4.0 s^-1 m up the 22 degree plane How far up the plane will it go ok I got this to be something like 2.2 about i understand this i need help on this how much time elapses before it returns to tis starting point? Ignore

    asked by Physics on July 11, 2009
  84. Phyics

    In an historical movie, two knights on horseback start from rest 94.3 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.273 m/s2, while Sir Alfred's has a magnitude of 0.280 m/s2. Relative to Sir

    asked by question on September 24, 2013
  85. phyics

    In an historical movie, two knights on horseback start from rest 94.3 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.273 m/s2, while Sir Alfred's has a magnitude of 0.280 m/s2. Relative to Sir

    asked by question on September 23, 2013
  86. algebra

    The value, v, of a shopkeepers inventory software program is given by v= -1/2t+5, where t is the number of years since the shopkeeper bought the program. What is the program worth four years after it is 1st purchased. Plot the point with the given t-value,

    asked by anonymous on May 13, 2011
  87. Physics

    Please help me out, I can't figure out the process for answering this question and my TA is of no help, A 0.11- ball is placed in a shallow wedge with an opening angle of 130 degrees,for each contact point between the wedge and the ball, determine the

    asked by Matthew on October 7, 2009
  88. Physics

    A place kicker must kick a football from a point 31.2 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 21.3 m/s at an angle of 53° to the horizontal. By

    asked by Anon on October 26, 2015
  89. HS Physics

    Please help...I know the direction is up, but I can't figure out the magnitude, except that its label is kg · m/s, I think. A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m.

    asked by Tzana on October 15, 2010
  90. Physics

    A place kicker must kick a football from a point 31.2 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 21.3 m/s at an angle of 53° to the horizontal. By

    asked by Anonymous on October 26, 2015
  91. chemistry

    Glutamate (Glu–) is the conjugate base form of glutamic acid (HGlu). The Ka of glutamic acid is 5.012 x 10^–5. You titrate 50 mL of 0.10 M sodium glutamate solution with 0.05 M HCl solution. Calculate the pH of the solution at the equivalence point.

    asked by kellie on July 28, 2012
  92. physics

    1. A certain projectile is launched with an initial speed v0. At its highest point its speed is v0/6. What was the launch angle? 2. The "hang time" of a punt is measured to be 3.50 s. If the ball was kicked at an angle of 61.0° above the horizontal and

    asked by Franklin on October 3, 2012
  93. Chemistry

    Consider the following compounds: KF, NaF, and RbCl. Answer the following questions based on expected periodic trends: (a) Which is expected to have the shortest ionic bonds? (b) Which is expected to have the highest lattice energy? (c) Which is expected

    asked by Treptilian on November 19, 2017
  94. physics 1

    In an historical movie, two knights on horseback start from rest 88.7 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.386 m/s2, while Sir Alfred's has a magnitude of 0.359 m/s2. Relative to Sir

    asked by Anonymous on January 28, 2014
  95. Physics

    In an historical movie, two knights on horseback start from rest 79.7 m apart and ride directly toward each other to do battle. Sir George's acceleration has a magnitude of 0.323 m/s2, while Sir Alfred's has a magnitude of 0.252 m/s2. Relative to Sir

    asked by Sandra on April 7, 2015
  96. physics

    A women walks 250m in the diretuibn 30 degrees east of north, then 175m east. a)what is the magnitude and angel of her final displacement from the starting point? I should be getting 370m and 36 degrees north of east but I keep on getting the wrong

    asked by Anna on September 30, 2006
  97. physics

    A person stands 4.4 m in front of a wall that is covered floor-to-ceiling with a plane mirror. His eyes are 1.9 m above the floor. He holds a flashlight between his feet and manages to point it at the mirror. At what angle of incidence must the light

    asked by rick on March 20, 2008
  98. Physics

    A uniform bar weighing 60N has a length of 4m and it is supported at its ends by a string. A load W=20N is placed at some point on the bar such that it is in equilibrium when the tension in the string at the left end is 80N, a) locate tge position of W. b)

    asked by Drew Gonzales on May 16, 2016
  99. Physics

    A physics textbook is launched up a rough incline with a kinetic energy of 200 joules. When the book comes momentarily to rest near the top of the incline, it has only gained 180 joules of gravitational potential energy. About how much kinetic energy will

    asked by Bob on May 10, 2012
  100. maths(please help me fast)

    Question 1 In order to buy a Christmas present for his girlfriend, James takes a loan of R500,00 from an organization advertising in a local newspaper. The name of the organization is called “Sharks that Bite”. This organization charges 15% interest

    asked by lesedi on June 13, 2014

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