1. Physics

    An airplane flies 220 km due east, makes a right-angle, and then flies 400 km due north. Find the magnitude of the plane's displacement from it's starting point. Neglect the culrvature of the earth

    asked by Jose on September 14, 2014
  2. Calculus

    Find the volume of the solid obtained by rotating the region bounded by y=x^3, y=1, and the y-axis and whose cross-sections perpendicular to the y axis are equilateral triangles. I asked this same question for the y-axis around the x-axis (Thanks for the

    asked by Jessica on October 13, 2011
  3. college physics

    find the frictional force exerted on a 20kg block pulled slowly over a horizontal floor using a rope which makes a 30 degree angle over the horizontal. the pulling force is 100N??? i found the Fn to be 146 N what do i do from there?

    asked by josh on June 10, 2010
  4. Calculus

    Find the volume of the solid obtained by rotating the region bounded by y=x^3, y=1, and the y-axis and whose cross-sections perpendicular to the y axis are equilateral triangles. I asked this same question for the y-axis around the x-axis (Thanks for the

    asked by Jessica on October 13, 2011
  5. math

    what is an eay way to add 1/5 1/2 and 1/7. I have to find a number that they all go into for a similar denominator right? but how do I do that without taking forever. Multiply the denominators: 5 x 2 x 7 = ?? =) As Writeacher has noted, the common

    asked by I dunno on July 28, 2007
  6. AP 1 Physics

    A motorcycle has a constant speed of 25.0 m/s as it passes over the top of a hill whose radius of curvature is 144 m. The mass of the motorcycle and driver is 326 kg. Find the magnitudes of the following. Centripetal force: mv^2/r = 1414.93 N Normal force:

    asked by Lulu on November 3, 2015
  7. trig

    The ferris wheel in an amusement park. It has a diameter of 24m, and it takes 40s to make one complete revolution. If Peter gets on a gondola which is vertically below the centre of the ferris wheel, find his rise in the height after 5s.

    asked by Yuika on March 31, 2014
  8. trigonometry

    A mini toy helicopter ascends 50 feet vertically, then flies horizontally 200 feet. Find the angle of elevation to the helicopter now as seen by an observer at the takeoff point. Round to the nearest degree

    asked by Anonymous on July 5, 2013
  9. U.S. History

    I have to do a current event related to the Bill of Rights. So any recent news, it can be up to 3 months ago. It has to pertain to the Bill of Rights such as freedom of religion, right to bear arms, and no quartering of troops, but I can't find any

    asked by Lola on December 16, 2009
  10. Calculus

    Determine the convergence or divergence of the series. Find the limit. Indicate the test that was used and justify your answer by showing evidence why the test succeeds or fails. Sigma (lower index n = 1; upper index infinity) 12/[n(n+3)]

    asked by Jenny on February 11, 2013
  11. John

    Is the following simple, compound, comples, or compound complex sentences? The shopping mall has a store that sells nothing but clocks. The governor chose the best people whom we could find for the committee; Mr. Dobbs was appointed committee chairman.

    asked by Jason on December 11, 2012
  12. AP Physics

    An ice skater skates 28 m southwest, then 56 m east, and finally 84 m in a direction 50.3 ◦ north of east.Find the magnitude of the displacement required to bring the skater back to her starting point. Answer in units of m

    asked by josselin on September 25, 2014
  13. math models

    The Sears Tower in Chicago is 1454 feet high. Sketch and find the angle of elevation from a point 750 feet from the base to the top of the tower. Relate your answer to the nearest tenth. a. 62.7º b. 27.3º c. 31.1º d. 58.9º

    asked by Chy on September 30, 2014
  14. Gen Chem

    For my chem class I have 3 elements and have to find what they are used for today or an interesting fact. I have looked but I can't really fin anything. My elements are: Cobalt,Thulium, and Roentgenium I found that cobalt is used in money (nickels,

    asked by Andrea on October 21, 2012
  15. Math

    On vacation you wish to send eight postcards to friends at home. You find cards costing $.59 each. Eight postcard stamps cost about $2 total. About how much will it cost to buy and mail the cards? super duper stuck on this question help!

    asked by Lea on August 23, 2018
  16. english

    Please help me ive been trying to figure this out, but I DO NOT understand it...I do not understand what an embedded sentence is We have to find the embedded sentences in: I deplore the fact that bats have wings. That Guinevere loves Lorian is known to all

    asked by Anonymous on July 7, 2008
  17. MATH

    John forgot to pay his $364.00 income tax on time. The IRS charged a penalty of 12% for the 55 days the money was late. Find the penalty that John paid. (Use a 365 day year.)

    asked by Tyga on March 14, 2010
  18. History

    I have been surfing the web for thirty minutes to no avail, trying to find a red flag with a baby blue stripe, a yellow star and a yellow hammer and sickle crossed. Can anyone tell me the organization that this flag belongs to?

    asked by Anonymous on September 4, 2009
  19. chemisty

    Find the volume of a starburst candy (220 cm cubed). The mass is 5.14 grams. Calculate it's density. How many starburst would it take to fill your locker (139,200 cm cubed)? Use dimensional analysis to solve this problem.

    asked by jj on September 8, 2013
  20. Basketball Current Event

    Dear Tutor, I have to do a current event for Physical Education on basketball. My problem is that I don't know anything about basketball and my coach wants it to be on a famous basketball team that has recently played. Can you help me find an article. I am

    asked by Bianca on February 18, 2013
  21. Basketball Current Event

    Dear Tutor, I have to do a current event for Physical Education on basketball. My problem is that I don't know anything about basketball and my coach wants it to be on a famous basketball team that has recently played. Can you help me find an article. I am

    asked by Bianca on February 18, 2013
  22. government

    Name and explain 3 problems of the Articles of Confederation. How can I answer that question? You'll need to check your textbook to find the parts of the Articles of Confederation that were not included in the Constitution. Look for things like states'

    asked by cc on October 19, 2006
  23. Calculus

    An airplane flies at an altitude of 5 miles toward a point directly over an observer. The speed of the plane is 600 miles per hour. Find the rate at which the angle of elevation tetra is changing when the angle is 30 degrees

    asked by Anonymous on November 1, 2009
  24. college

    Hi, I would like to ask if there is someon who can recomend me a good university, for a person that wants to be a surgeon and what would be a good thing to get a major on? thanks in advance Talk with your high school guidance counselor. Then try to be

    asked by claudia on April 22, 2007
  25. A physics problem

    Hello...I need to find a modern day movie that has at least three or more physics mistakes. I need to prove they are mistakes...as well, is Zeno's Paradox a credited/valid source to use to prove something such as the everlasting gobstopper, from Willy

    asked by Physics! on December 19, 2007
  26. 6th Grade Probability

    From a barrel of colored marbles, you randomly select 4 blue, 5 yellow, 6 red, 2 green, and 5 purple. Find the experimental probability of randomly selecting a marble that is NOT blue. A. 6/13 B. 1/2 C. 9/11 D. 3/8 Please help me fast! I have no clue how

    asked by MusicLover14 on June 5, 2015
  27. Movies and physics

    Hello...I need to find a modern day movie that has at least three or more physics mistakes. I need to prove they are mistakes...as well, is Zeno's Paradox a credited/valid source to use to prove something such as the everlasting gobstopper, from Willy

    asked by Physics! on December 19, 2007
  28. physics

    a block weighing 50 N rests on an inclined plane. its weight is a force directed vertically downward, a37 degree angel find the componants of the force parallel to the surface of the plane and perpendicular to it

    asked by melissa on January 1, 2008
  29. Physics

    To compress spring 1 by 0.23 m takes 188 J of work. Stretching spring 2 by 0.27 m requires 211 J of work. Find the force constants. K1 = K2 = I have derived the formula for k as k = W/(2x^2) but when i plug in the values the answer isn't correct.

    asked by Bobby C on March 13, 2010
  30. Calculus

    A container is in the shape of an inverted right circular cone has a radius of 2 in at the top and a height of 6 in. At the instant when the water in the conatiner is 5 in deep, the surface level is falling at the rate of -.4 in/s. Find the rate at which

    asked by Liz on May 17, 2012
  31. calcus

    Related Rates Problem An isosceles triangle with a base of 20root3 cm long. If the length of the leg decreases at rate 3 cm/h, find the rate of decreasing of the area of the triangle in the instant at which the triange becomes equilateral

    asked by bedo on August 28, 2016
  32. Geometry

    find the distance between the cities. Assume that Earth is a sphere of radius 4000 miles and that the cities are on the same longitude (one city is due north of the other) Dallas, Texas Latitude: 32* 47' 39" Omaha, Nebraska Latitude: 41* 15' 50"

    asked by Shanu on January 17, 2015
  33. calculus

    hey I just wanted to make sure that I was doing this problem correctly. The question says to graph the function f given by f(x)=x^3+3x^2-9x-13 and find the local extremer. So here's what I did: f(x)=x^3+3x^2-9x-13 F^1(x)=3x^2+6x-9 = 3x(x-3) x=0 x=3 I put

    asked by help on July 5, 2012
  34. Chemistry

    A biomass power station burns forestry residue which has 2000 ppm potassium in it and produces 2% ash by weight (think Ive worded that right). I need to find the fraction of K2O in the ash, but only the fraction of K in the fuel as a whole is given.

    asked by Gemma on February 7, 2011
  35. math

    the hypothenus of a right angle triangle is 6cm with respect to the other two sides, one is 2cm longer than the other. Find the length of the two other sides to the nearest tenth. when i worked out this question, I got the answer as X=-5.1 or X=3.1 is my

    asked by ted on January 3, 2011
  36. chemistry

    Calculate the pH of concentrated hydrochloric acid if this solution is 24.8 % HCl by weight and has a density of 1.16 g/mL. a. ) -0.77 b. ) -0.83 c. ) -0.90 d. ) -0.98 e. ) -1.01 i got c) by converting density into concentration (mol/L) and then,

    asked by Anonymous on November 2, 2008
  37. math/chemisty

    Find the volume of a starburst candy (220 cm cubed). The mass is 5.14 grams. Calculate it's density. How many starburst would it take to fill your locker (139,200 cm cubed)? Use dimensional analysis to solve this problem.

    asked by jj on September 8, 2013
  38. AP Physics

    A 5.86 kg block initially at rest is pulled to the right along a horizontal surface by a constant, horizontal force of 14.4 N. The coefficient of kinetic friction is 0.14. The acceleration of gravity is 9.8 m/s 2 . Find the speed of the block after it has

    asked by Robert on November 11, 2015
  39. math/statistics

    In the Numbers Game, a state lottery, four numbers are drawn with replacement from an urn containing balls numbered 0-9, inclusive. Find the probability that a ticket holder has the indicated winning ticket. The first three digits in exact order.

    asked by Brian on June 19, 2017
  40. College Chemistry

    Complete the following table for aqueous solutions of caffeine, C8H10O2N4. Find: Molality Mass Percent Solvent Ppm Solute Given: Mole Fraction Solvent = 0.900 Molar Mass is 194.2g i believe.

    asked by James on August 30, 2010
  41. physics

    A pitched ball is hit by a batter at a 45° angle and just clears the outfield fence, 90 m away. Assume that the fence is at the same height as the pitch and find the velocity of the ball when it left the bat. Neglect air resistance.

    asked by Tim on February 25, 2012
  42. Do you know where I could find these vides?

    I am looking for two educational videos: one is entitled "Integrated Curriculum" and the other is a Shoe Store Video... both focus on children in pretend play and children playing an active part of the learning environment.... If you have seen these videos

    asked by MARY on April 26, 2008
  43. Calculus

    The function V=4pir^2 describes the volume of a right circular cylinder of heigh 4ft and radius r feet. Find the (instantaneous) rate of change of the volume with respect to the radius when r=6. Leave the answer in terms of pi.

    asked by Anonymous on January 24, 2008
  44. Calculus

    A box with a square base and no top is to be built with a volume of 4000 in3. Find the dimensions of the box (Length, Width, Height) that requires the least amount of material. How much material is required at the minimum?

    asked by E on November 4, 2015
  45. Physics

    A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of the crate at the bottom of the ramp

    asked by Matt on February 3, 2011
  46. Statistics

    The distribution of heights of women aged 20 to 29 is approximately normal with a mean of 2.8 inches and standard deviation of 2.8 inches. The height (+/- 0.1 inch) of the middle 99.7% falls between a low of ?? inches and a high of ?? inches. Please help

    asked by Angel on September 10, 2015
  47. math

    Supppose two trains leave Holbrook, Arizona, at the same time, traveling in opposite directions. One train travels 10 mph faster than the other. In 3.5 hours, the trains are 322 miles apart. Find the speed of each train.

    asked by justin on December 4, 2012
  48. geometry

    I have a 50 question assigment that its due tomorrow and I'm stuck on this question. "Write the contrapositive,converse,and inverse of this statement.Determine whether they are true or false.If its false.find a conterexample "Two angles measure 90 are

    asked by Elena G. on September 18, 2012
  49. Precalc

    Given log2=0.3010, log3=0.4771, log5=0.6690, and log7=0.8451... Find a.) log8 b) log5/7 c.) log1.5 d.) log3/14 e) log12 I didn't know how to do b, c, and d. I also don't know if log 12 is right. Answer: a.) 0.903 b.)? c.)? d.)? e.) 1.0791

    asked by Katie on November 11, 2015
  50. Chemistry

    Find the pH of mixture of acids. 0.185 M in HCHO2 and 0.225 M in HC2H3O2 Im using an ice chart of weak acid and putting in strong acid in H+ initiAL concentration. I've done the problems many different ways but cannot seem to get the right answer help

    asked by L.Bianchessi on February 26, 2012
  51. Math

    Find the amount of interest and the monthly payment for the loan. Purchase a car for $42,400 at 2.4% add-on rate for 5 years. (Round your answers to the nearest cent.) $_____ interest $_____ per month

    asked by Reggie on December 14, 2012
  52. Algebra

    28. A gardener measures the tallest of his prize-winning sunflowers and finds that the height is 60 in. The sunflower was 52 in. tall the last time the gardener measured it. Write and solve an equation to find how many inches the sunflower grew.

    asked by Rach on November 3, 2009
  53. System of Linear Equations

    A medical supply company has 1150 worker-hours for production, maintenance, and inspection. Using this and other factors, the number of hours used for each operation, P, M, and I, respectively, is found by solving the following system of equations. Find P,

    asked by neeha on July 8, 2011
  54. PHYSIC

    TWO BLOCKS ARE CONNECTED BY A LIGHT STRING THAT PASSES OVER A FRICTIONLESS PULLEY AS SHOWN IN THE DIAGRAM. THE COEFFICIENT OF KINETIC FRICTIONBETWEEN THE 6.0KG BLOCK AND THE SURFACE IS 0.25.FIND THE ACCELERATION OF THE 8-KG BLOCK AND THE TENSION OF THE

    asked by Anonymous on March 6, 2012
  55. Math

    Using this graph, find the average lengths of cellular calls for the year 2013. Year:|Avg length (L) in minutes: 1999|2.38 2000|2.56 2001|2.74 2002|2.73 2003|2.87 2004|3.05 I think the answer is 4.08 minutes but I also got 3.97 so I'm not sure, can you

    asked by Alex on January 29, 2015
  56. Physics

    An ice skater skates 13.3 m southwest, then 26.6 m east, and finally 39.9 m in a direction 51.5◦ north of east. Find the magnitude of the displacement required to bring the skater back to her starting point. Answer in units of m

    asked by Bob on September 22, 2014
  57. Math: Algebra

    Madoka has scores 84, 89, and 91, each out of 100 points, on her algebra tests. Use an inequality to find the score she must make on the final exam to pass the course with an average of 90 percent or higher, given that the final is worth 150 points.

    asked by Irelia on September 10, 2013
  58. Algebra

    An initial investment of $480 is appreciated for 8 years in an account that earns 9% interest, compounded quarterly. Find the amount of money in the account at the end of the period. A $978.29 B $956.43 C $498.29 D $956.76

    asked by Mary on July 23, 2018
  59. Math

    From an 8 inch by 10 inch rectangular sheet of paper, squares of equal size will be cut from each corner. The flaps will then be folded up to form an open-topped box. Find the maximum possible volume of the box.

    asked by tammy on April 9, 2011
  60. physics

    two horizontal parralel plate each of area 100cm2, 1m apart in vaccum the lower part is earthed and upper part is given a charge of 0.5uc neglect edge effect , find the electric field between the plate

    asked by jayzon on June 26, 2017
  61. math

    You can find the distance d an object falls in feet for time t in seconds using the formula d= 16t^2. Suppose a ball is dropped out of a window of a tall building. How far will the ball in 3 seconds? a 144 ft b 96 ft c 48 ft d 16 ft plz explain how to do

    asked by Anonymous on March 20, 2009
  62. Physics-Help Please!!!

    A 31.0 kg crate, initially at rest, slides down a ramp 2.6 m long and inlined 14 degrees with the horizontal. Using the work-kinetic energy theorem and disregarding friction, find the velocity of th crate at the bottom of the ramp

    asked by Matt on February 3, 2011
  63. MATH

    A VERTICAL POST WITH SQUARE CROSS SECTION OF 1M X 1M IS SET SQUARELY ON A CUBICAL BLOCK 3M ON A SIDE. SUPPORT S FROM THE FLOOR TO THE SIDES OF THE POST AS DESIRED. FIND THE INSIDE LENGTH OF THE SHORTEST POSSIBLE SUPPORT.

    asked by BWALYA on September 9, 2014
  64. mechanics_ physics

    1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.

    asked by precious on January 6, 2013
  65. Calculus

    The question is, if f(x) is equal to the series from n to infinity of a sub n times (x-7)^n for all n, find a formula for a sub 10. (I apologize for typing it out in the way that I did, but it was the only way I could. I don't quite understand what is

    asked by David on December 10, 2007
  66. math

    Find the minimum number of cells connected in two rows in parallel required to pass a current of 6 A through an external resistance of 0.70 ohms. Take the emf of each cell as 2.1 volts and internal resistance of each cell as 0.5 ohm..

    asked by Cora on June 30, 2015
  67. Physics

    A system gains 473J of kinetic energy while losing 271J of potential energy. The thermal energy increases by 127J . Use an energy bar chart of this process to find the external work Wext.

    asked by Tami on June 8, 2014
  68. mechanics_ physics

    1.20kg mass is dropped from a height of 0.9M unto a spring with force constant K= 120N/m and negligible mass. Find the maximum distance the spring will compressed pls show full working and indicate formular.

    asked by precious on January 6, 2013
  69. Socials

    Confederation: For and Against. How do Macdonald and Howe represent the presence of the United States? In a paragraph, describe who, in your opinion used the American factor most effectively. Macdonald mentions Americans, but I cant find where they talk

    asked by Sara on March 14, 2011
  70. calculus

    1. Let C(t) be the number of cougars on an island at time t years (where t > 0). The number of cougars is increasing at a rate directly proportional to 3500 - C(t). Also, C(0) = 1000, and C(5) = 2000. 1. Calculate C(10). 2. Find the limit as t tends to

    asked by Jeremy on April 25, 2018
  71. physics

    A uniformly charged insulating rod of length 14 cm is bent into the shape of a semicircle. if the rod has a total charge of -7.5 C. find the magnitude and direction of the electric field at the center of the semicircle. I'm not sure where to start or what

    asked by Anonymous on February 20, 2008
  72. Physics

    A weight lifter manages to lift a 147 kg weight a distance of 1.1 m. Treat her as a thermodynamic system and find how much heat (in kcal) she must put out if her internal energy decreases by 3620 J during the lift. Not sure how to answer this.

    asked by Riley on January 31, 2014
  73. chemistry

    i know the formula FC = # Valence Electron - bonds - lone pairs but am i supposed to use that formula for all elements on the problems for instance the teacher did this example :O: || C / \ O FC: 6-2-4=0 CFC: 4-4=0 I have no idea where the numbers came

    asked by jessie on January 30, 2011
  74. Pre-Calculus

    Find the slope of the tangent line to the curve √(1x+2y) + √(1xy) = 8.24 at the point (2,8)? I know you have to use implicit differentiation, but the radicals keep making me mess up algebraically. Is the changing the radicals to exponents the fastest

    asked by Ann on November 14, 2013
  75. math help needed bad

    how do I make a box and whisker plot with the numbers 13,13,20,21,21,22,24,27? I put them all in order but since there is only 8 numbers i do not know how to find the median,the lower quartile,upper quartile the lowest value and the highest value. Please

    asked by confused on March 9, 2015
  76. Chemistry

    You add 7.326g of solid CaCl2 to 45.5 mL of water in a coffee cup calorimeter and measure as the temp. Increase from 22.6 C to 41.5 C. Specific heat water is 4.184 J/ g.C and the density of water is 0.9977 g/mL. Find the mass of water. PLEASE HELP ME!!!

    asked by Dania on October 20, 2016
  77. physics

    a 60.00-kg athlete leaps straight up into the air from a trampoline with an intial speed of 9.0 m/s. The goal of this problem is to find the maxiumum height she attains and her speed at half maximum height. what are the interacting objects and how do they

    asked by yue xing lu on November 3, 2012
  78. Physics

    A system gains 473J of kinetic energy while losing 271J of potential energy. The thermal energy increases by 127J . Use an energy bar chart of this process to find the external work Wext.

    asked by Allen on June 5, 2014
  79. 9th Grade Honors English

    In the book Inside the Walls of Troy, what view does the reader get through her eyes? I know that Cassandra loathed her gift of foreseeing the future and that she didn't want anyone to find out about her gift,in fear of being judged and criticized for it,

    asked by Lillith on October 12, 2016
  80. calculus

    Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example

    asked by Leanne on November 28, 2012
  81. Precalc

    The figure shows the pre-image and first iteration for a set of transformations. If the iterations are carried on infinitely, the resulting fractal figure will have dimension given by Dimension=(LogN)/Log(1/r) It tells me to find N and r... What should I

    asked by Grace on January 19, 2012
  82. calculus

    Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to four significant digits.) HINT [See Quick Example

    asked by Leanne on November 28, 2012
  83. Physics

    A rod with cross-sectional area A and length L is made from a material with a Young's modulus of Y. This rod could be considered an extremely stiff spring with some spring constant k. Find an expression for k in terms of the other quantities.

    asked by Jane on February 25, 2011
  84. Math (finance )

    Find the monthly payment, needed to have a sinking fund accumulate the future value, $16,000. The yearly interest rate is 6.7% and the number of payments is 20. Interest is compounded monthly. I do not remember how to solve for this equation. Please help

    asked by Anonymous on April 22, 2017
  85. physics

    A team of dogs drags a 81.2 kg sled 3.12 km over a horizontal surface at a constant speed.The coefficient of friction between the sled and the snow is 0.172. The acceleration of gravity is 9.8 m/s^2 Find the work done by the dogs. Answer in units of kJ.

    asked by Maria on December 9, 2015
  86. math

    It is estimated that one third of one per cent of the Earth’s surface receives more energy from the sun than the total projected needs for the year 2014. Assuming the Earth’s surface to be 1.97 x 108 square miles. Find the area in acres.

    asked by david on September 13, 2012
  87. physics

    A 1.54 ×104 N boat experiences a force of 2 000 N from east by the ocean tide and a wind force against its sails with magnitude of 4000 N directed toward the northwest (60° N of W). Find the magnitude and the direction of the resultant acceleration

    asked by leslie on September 18, 2013
  88. chemistry

    The percentage of C,H,O in vitamin C were determined by burning a sample weighing 2.00g. The masses of carbon dioxide and water formed are 3.00mg and 0.81mg respectively. Find the percentage of each element and the empirical fomula of vitamin C

    asked by Jude Patrick on October 22, 2014
  89. physics

    Suppose the charge q2 in the figure below can be moved left or right along the line connecting the charges q1 and q3. Given that q = +15 µC, find the distance from q1 where q2 experiences a net electrostatic force of zero? (The charges q1 and q3 are

    asked by stoic-rider77 on January 12, 2013
  90. math

    A gardener measures the tallest of his prize-winning sunflowers and finds that the height is 60 in. The sunflower was 52 in. tall the last time the gardener measured it. Write and solve an equation to find how many inches the sunflower grew.

    asked by Anonymous on October 28, 2009
  91. Physics

    A solid disk rolls along the floor with a constant linear speed v. (a) Find the fraction of its total kinetic energy that is in the form of rotational kinetic energy about the center of the ball. Krot/Ktotal = ?

    asked by Ace on March 8, 2010
  92. Spanish

    I have an assignment to write the subject pronoun that you would use when addressing a person and then what pronoun you would use when talking about them. I am totally confused and cant find help in my text. looks like this: Don francisco Maite y Ines Ines

    asked by Shannon on August 30, 2011
  93. Physics

    A 4.90-kg ball, moving to the right at a velocity of +2.50 m/s on a frictionless table, collides head-on with a stationary 8.00-kg ball. Find the final velocities of the balls if the collision meet the following conditions. (a) elastic 4.9-kg ball = 8-kg

    asked by Miranda on January 13, 2013
  94. Math

    Mr. VanNevel makes rectangular glass aquariums with glass tops. The aquariums measure 12 in by 6 in by 8 in. a.) draw a net and find the total surface area I know there are no photos allowed on the website but if you can try to explain this it would be

    asked by Homework Help Please on January 9, 2018
  95. Math

    I need to find the equation for the following (compound interest): number of years: 12 initial principal: 10000 annual interest rate: 0.03 additional investment each subsequent quarter: 500 The value in 12 years is 43074.4088874

    asked by Trevor on September 30, 2010
  96. algebra

    Find the slope-intercept form of the line that passes through given the point and has the given slope. Include your work in your final answer. Type your answer in the box provided or use the upload option to submit your solution. (1, 3) m = 2

    asked by amber on September 4, 2014
  97. Algebra

    For a nonsmoker, the biological half-life of theophylline is 8 hours. Find the amount of the drug retained in a nonsmoker's system 18 hours after taking a one-unit dose. (Round your answer to three decimal places.)

    asked by cindy on March 27, 2016
  98. physics

    Three lead balls of mass m1= 13kg, m2= 26kg, and m3= 9.6kg are arranged as shown in the figure below. Find the total gravitational force exerted by balls 1 and 2 on ball 3. Be sure to give the magnitude and the direction of this force

    asked by Anonymous on November 4, 2012
  99. statistics

    Henry performed a two- tailed test for an experiment in which N = 24. He could not find his table of t critical values, but he remembered the tcv at df = 13. He decided to compare his tobt with this tcv. Is he more likely to make a Type I or a Type II

    asked by adrienne on September 11, 2014
  100. Statistics

    On standard IQ tests, the mean is 100 and the standard deviation is 13. The results are very close to fitting a normal curve. Suppose an IQ test is given to a very large group of people. Find the percent of people whose IQ score is between 61 and 139.

    asked by Anonymous on February 14, 2012

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