1. math

    To secure a 500 meter radio tower against high winds, guy wires are attached to a ring that is 5 meters from the top of the tower. The wires form a 15 degree angle with the tower. Find the distance from the base of the tower to the guy wire anchor in the

    asked by danielle on May 22, 2014
  2. Writing

    How can I write my research paper to where my research makes sense? The first thing you have to do is come up with a point. I saw you were asking a lot of questions about the holocaust (I assume this is the same Brooke), so assume this is what you're

    asked by Brooke on May 14, 2007
  3. English essay

    I would be very thankful if you could correct my essay for grammar and spelling mistakes, thank you! Japanese music Lately Ifve been quite addicted to Japanese culture. Not that I havenft always been, but itfs getting worse and worse. My most recent

    asked by Juliane on February 3, 2007
  4. Science (Geology)

    I am doing an assignment on the rock quartzite, and I cannot find any information as to what rock comes after quartzite in the rock cycle (What rocks are formed from quartzite)? Help would be much appreciated.

    asked by Kait on May 23, 2017
  5. math

    10 pesos = .909198 US dollars. Use estimation and rounding to find out how many US dollars equal 200 pesos. B) how many pesos approximately are 4 US dollars?

    asked by alandra on May 22, 2012
  6. geometry

    a line segment is divided into two segments that are in a ratio 4 to 7. the measure of one segment is 15 inches longer than the measure of the other. Find the measure of each segment.

    asked by Anonymous on March 2, 2011
  7. kyc

    in a 2 digit number sum of two digit is 7 of the difference of two digit number and number obtained by reversing the degit is 9 find the numbers

    asked by manan on July 3, 2017
  8. geometry

    a line segment is divided into two segments that are in a ratio 4 to 7. the measure of one segment is 15 inches longer than the measure of the other. Find the measure of each segment.

    asked by Anonymous on March 2, 2011
  9. Maths

    In a class 30 students pass in maths, 20 pass in physics and 8 pass in both. Find the number of students failed in both if the total students are 45.

    asked by Swapnamayee sahoo on October 21, 2016
  10. add math

    Given sin (x-y)=1/4, sin x cos y=3/5,and tan y=3/2,without using mathematical table or scientific calculator,find the values for: (a)cos x sin y (b)cos (x+y)

    asked by cianhuan on June 24, 2011
  11. math plz help

    the Average age of three number is 32 base 5.If the sum of two number is 131 base 4.Find the third number in base 6? Step plz

    asked by troy on May 27, 2016
  12. math

    A number cube with the numbers 1 through 6 is rolled. find the given probability P(number < 2) (1 point) 1/6 2/6 *** 4/6 3/6 2. P(number ≥ 3) (1 point) 4/6 1/6 2/6 5/6 I think it's A .. I'm not quiet sure. please help 3. P(complement of 4) (1 point) 1/6

    asked by anonymous on March 25, 2015
  13. math (algebra honors)

    the edge of one cube is 2 cm shorter than the edge of a second cube. The volumes of the two cubes differ by 386cm^3. Find the edge of the smaller cube.

    asked by rosa on February 27, 2014
  14. math

    a right circular cylindrical container ,contains 2160cubic cm water. if the diameter of the base of the cylindrical container is 24 cm, then find the height of the cylindrical container.

    asked by akash on September 3, 2017
  15. Math

    cotA = tan(90degrees- A) True or False The vectors and are orthogonal True or False 2 = 16 True or False * = + = Find c if a = 3, b = 5, and A = 30degrees=

    asked by April on December 3, 2015
  16. Math

    cotA = tan(90degrees- A) True or False The vectors and are orthogonal True or False 2 = 16 True or False * = + = Find c if a = 3, b = 5, and A = 30degrees=

    asked by April on December 3, 2015
  17. maths --.

    If sin theeta=3/5 , cos alpha= -12/13 and theeta,alpha both lie in 2nd quadrant,find the value of tan (theeta+alpha).

    asked by Anonymous on December 24, 2012
  18. Maths

    A knife has a mass of m grammes. It is 20g heavier than a spoon. The mass of a knife and four spoons is 330g. Find the mass of the Knife.

    asked by Maxwell on September 3, 2016
  19. maths

    The minute hand of a clock moved from 12 to 4.if the length of the minute hand is 3.5cm.find the area covered by the minute hand

    asked by frimpong on October 1, 2017
  20. Math

    There are 5 Saturdays in February 2020. What day of the week is February 03, 2020? Note: There are 29 days in February 2020. What is the best way to find the answer?

    asked by Kabir on October 13, 2017
  21. math

    A basketball team needs 5 players. The team can choose from a group of 7 players. Explain how to find the number of combinations of players that can e on the team.

    asked by patty on March 26, 2013
  22. math

    a wire 54cm long is cut into three pieces. the second piece is twice the length of the first, and the third piece is three times the length of the first. Find the length of each piece?

    asked by shariza on December 11, 2013
  23. Science

    ON a walk through the woods with a friend,you find a plant neither of you has seen before.The plant is Herbaceous and has yellow flowers.Your friend say it is a Vascular plant.How does your friend know this?

    asked by Lika on September 1, 2008
  24. math

    Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters

    asked by manny on September 4, 2007
  25. Pre-Calculus

    Sue is building a triangle out of sticks. The length of the first side is "a" and the second side is of length "b". The length of the third side must be between 8 and 26 units. Find the product of "a" and "b".

    asked by Hannah on February 11, 2013
  26. math

    How do you solve this problem? Find the slope-intercept equation of the line that has the given characteristics. Slope 8 and y-intercept (0,5) The slope-intercept equations is y=

    asked by samuel-32 on January 13, 2011
  27. Mathematics

    The length of a car park is 12m longer than its with. The area of the car park is 64m². Find the dimensions of the car park?

    asked by Math on July 18, 2019
  28. Algebra

    5 buckets contain a total of 100 tennis balls. How many balls are in each bucket if each bucket contains n more balls than the previous bucket? Find all the possible values for n.

    asked by Sam on September 27, 2017
  29. math

    Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters.

    asked by sweety on September 7, 2007
  30. math

    A basketball team needs 5 players. The team can choose from a group of 7 players. Explain how to find the number of combinations of players that can be on the team.

    asked by Alex on April 4, 2012
  31. social studies 9

    Find out Joseph Brant's Mohawk name. How did he get the name "Joseph Brant"? Why do you think Joseph Brant was able to establish diplomatic links with the British to the extent that he did?

    asked by kim on May 13, 2014
  32. math

    The length of a rectangle is 4 times the width. The perimeter is 50cm. Find the length and width. Write the equations. What is the length and width?

    asked by lea on March 14, 2012
  33. Geometry

    a line segment is divided into two segments that are in a ratio 4 to 7. the measure of one segment is 15 inches longer than the measure of the other. Find the measure of each segment.

    asked by lula on March 2, 2011
  34. Geometry

    a line segment is divided into two segments that are in a ratio 4 to 7. the measure of one segment is 15 inches longer than the measure of the other. Find the measure of each segment.

    asked by lula on March 2, 2011
  35. Calculus/Logarithms

    Find the derivative of f(x) = (square root of x)(ln x). Using my notes, I came up with f'(x) = (1/2*square root of x)/x The answer in the back of the book says f'(x) = (2+ln x)/(2*square root of x). Can someone please explain how? Thanks.

    asked by Amy on June 29, 2009
  36. MAth

    how do i find the domain and range of equations? example: f(x)=ab.solute value of x-3. f(x)=square root 36-x^2 g(x)=-2x+2. how would i know what the domain and range is of these. could i use a graphing calculator to tell me the domain and range??

    asked by Jamie Lynn on December 16, 2008
  37. Math

    Trapezoid with base lengths 3 inches and 7 inches and height 12 inches Find the area. Formula : A=1/2(base 1 + base 2)h A=81.6in?

    asked by Jerald on February 1, 2014
  38. Chemistry

    An aqueous solution of NaCl is 270m. If the density of the solution is 1.20g/ml. Find a) % NaCl by mass b) Molarity of NaCl in the solution.

    asked by Arwida on July 16, 2014
  39. Finance

    Question 1: You wish to start a project. Your initial investment is $100000. You generate 0 cash flows for the first 2 years but generate $16000 in year 3 and increase by 15% every year till year 7, after which time they decline by 2% until year 9. You

    asked by A on November 4, 2007
  40. Differential equation

    A spherical balloon remains spherical as it is slowly inflated. The radius of the balloon r (in cm) at time t (in seconds) satisfies the differential equation. Dr/dt = k/r^2 where k is a positive constant. When the radius is 3 cm, the radius is increasing

    asked by Anon on February 19, 2017
  41. math

    Can someone explain how I missed this question. Sample has a mean of 47 and a standard deviation of 9. Find the z-score for each value of x=53.(give answer correct to 2 decimal places) I did it this way and missed it 53-47divided by 9 = 0.666 and I put 0.6

    asked by Sue on May 23, 2013
  42. Science

    A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 55 cm,

    asked by John on November 30, 2011
  43. Differential equations

    Good morning. Quick question. dr/dt=K/r^2 When the radius is 3cm, the radius is increasing at a rate of 5/36pi. Use this fact to find the constant K. I know that the general form of these growth factors is e^kt but im not sure where the rate and the

    asked by Mat on February 19, 2017
  44. Math - Calculus

    Find the area of the surface of revolution generated by revolving the curve y = 3 sqrt (x), 0

    asked by Anon on December 8, 2016
  45. Physics

    A 6.2 g bullet is fired into a 2 kg ballistic pendulum. The bullet emerges from the block with a speed of 281 m/s, and the block rises to a maximum height of 15 cm . Find the initial speed of the bullet. The acceleration due to gravity is 9.8 m/s 2 .

    asked by Somya on December 12, 2016
  46. Thinking Mathematically

    solve A Flag Pole Has A Height Of 16 Yards. It Will Be Supported By Three Cables, Each Of Which Is Attached To The Flagpole At A Point 4 Yards Below The Top Of The Pole And Attached To The Ground At A Pole. Find the total number of feet of cable that will

    asked by Edward on September 23, 2012
  47. Arithmetic progression

    A person buys national savings certificate of values exceeing of the last years purchase by Rs. 100. after 12years he finds that the total value of certificate purchased by him is Rs. 7,200 find the value of the certificate purchased by him (1) in the

    asked by Warnar on December 5, 2016
  48. Physics

    A dentist's drill starts from rest. After 3.00 s of constant angular acceleration it turns at a rate of 2.8 104 rev/min. (a) Find the drill's angular acceleration. (b) Determine the angle (in radians) through which the drill rotates during this period.

    asked by Kelsey on March 24, 2010
  49. physics

    Spherical particles of a protein of density 1.4 g/cm3 are shaken up in a solution of 20°C water. The solution is allowed to stand for 1.0 h. If the depth of water in the tube is 4.0 cm, find the radius of the largest particles that remain in solution at

    asked by Bah on September 7, 2012
  50. Physics y.s.n.

    A body start with an initial velocity of 10metre per second move along the straight line with constant acceleration and the velocity of the body is 50 metre per second the acceleration is reversein the direction find the velocity of the particle as it

    asked by Nisha on November 25, 2016
  51. ece literacy

    please help I just can't find the answer to this question. Words are: A)convenient communication shortcuts B)not arbitrary symbols C)unique to each individual in english D) thoughts written down I really cant decide which is correct. the definition of

    asked by Deb on February 13, 2012
  52. History

    Hello can anyone help me with this question . It will be greatly appreciated . analyze an economic and political activity in the Caribbean South America since its independence. Include at least one example os an economic activity and one example of a

    asked by ... on February 6, 2017
  53. Calc

    A metal cable has radius r and is covered by insulation, so that the distance from the center of the cable to the exterior of the insulation is R. The velocity v of an electrical impulse in the cable is v = -C(r/R)^2*ln(r/R) where c is a positive constant.

    asked by Greg on December 2, 2009
  54. Math

    Suppose heights of men are normally distributed with a mean 69.0 inches and standard deviation 2.8 inches. What percent of men are over 6 feet tall? Round to the nearest tenth of a percent. I understand finding the z score but I'm not sure how to find the

    asked by Anonymous on March 6, 2016
  55. physics

    Find the magnitude of the linear momentum of (i) a 7.1 kg bowling ball traveling at 12 m/s and (ii) a 200 kg automobile traveling at 90 km/h. (b) A pool player imparts an impulse of 3.2 N-s to a stationary 0.25 kg cue ball with a cue stick. What is the

    asked by Byron on December 3, 2013
  56. Math

    Selina has a homework consisting of 4 questions.In each question,she needs to find the value of each power.When she turns in her homework,her teacher says she got 3 correct answers which of the following values did she calculate incorrectly? a.(-3)0 = 1

    asked by Leilani on November 29, 2016
  57. The Question that was not answered. (twice)

    What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels? I don't know what it's asking to start with and can't find anything relevant online, in my textbook or in my study guide! Since it says levels, I

    asked by Jason on August 28, 2010
  58. bio

    What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels? I don't know what it's asking to start with and can't find anything relevant online, in my textbook or in my study guide! Since it says levels, I

    asked by Jason on August 28, 2010
  59. Physics

    A man throws a ball horizontally from the top of a hill 4.9m high. He wants the ball to clear a fence 2.4m high, standing on a horizontal surface and 8m horizontally away from the point of projection. Find the minimum speed at which the ball must be

    asked by Kiran on February 13, 2014
  60. Physics

    A 0.473 kg mass is attached to a spring with a spring constant 110 N/m so that the mass is allowed to move on a horizontal frictionless surface. The mass is released from rest when the spring is compressed 0.119 m. Find the maximum force on the mass.

    asked by AIsh on October 28, 2015
  61. Math

    From a 10-inch-by-19-inch piece of cardboard, 3-inch-square corners are cut out, as shown in the figure above, and the resulting flaps are folded up to form an open box. Find the surface area and volume of the open box

    asked by Tory on April 26, 2011
  62. AP Biology

    What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels? I don't know what it's asking to start with and can't find anything relevant online, in my textbook or in my study guide! Since it says levels, I

    asked by Jason on August 28, 2010
  63. physics - electrostatics

    A charged particle of mass m of 1 kg and charge q = 2 uC is thrown from a horizontal ground at an angle teta = 45 degree with speed 20 m/s. In space a horizontal electric field E = 2 x 10^7 V/m exist. Find the range on horizontal ground of the projectile

    asked by uma on April 14, 2012
  64. Statistics Range, Variance, and Standard Deviation

    26. Flight Data: Find the range, variance, and standard deviation. Express answers using appropriate units, such as "minutes." Refer to Data Set 15 in Appendix B and use the times required to taxi out for takeoff. Flight 1 1 1 1 1 1 1 1 1 1 1 1 3 3 3 3 3 3

    asked by Alexis on May 10, 2016
  65. Statistics

    A study of the amount of time it takes a mechanic to rebuild the transmission for a 1992 Cavalier shows that the mean is 4.5 hours and the standard deviation is .6 hours. If 42 mechanics are randomly selected, find the probability that their mean rebuild

    asked by Elizabeth on July 20, 2015
  66. Math

    Minta deposits 1000 euros in a bank account the bank pays a nominal annual intrest rate of 5% compounded quartterly find the time in years until minta withdraws the money from her bank account

    asked by Roygbiv on April 29, 2016
  67. math,correction

    Geometry. The volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box. the diagram has the height being x+2 My answer is: A=(x+5)(x+3) -------------------------------------- Multiply the

    asked by jas20 on March 2, 2007
  68. science

    I have researched for an hr. Can someone help me find what energy transformation takes place when a firecraxker explodes? The choices given to me are : a. Gravitational potential to mechanical and electromagnetic. B:NUCLEAR to kinetic and,chemical. C:

    asked by james on December 5, 2015
  69. algebra

    the number of bacteria in a certain population is predicted to increase according to a continuous exponential growth model at a relative rate of 6% per hour. suppose that a sample culture has an initial population of 94 bacteria. find the predicted

    asked by jasica on October 24, 2016
  70. physics

    A large rock is dropped from a plane flying horizontally at an altitude of 4.00 x 10 ^3 ( to the power of 3) and with a speed of 900km h. a) calculate the distance that the rock will move horizontally before hitting the ground b) find the velocity of the

    asked by sabine on June 11, 2013
  71. physics

    Before going into orbit, an astronaut has a mass of 55 kg. When in orbit, a measurement determines that a force of 67.1 N causes her to move with an acceleration of 1.1 m/s2. To regain her original weight, should she go on a diet or start eating more

    asked by David on September 23, 2012
  72. PHYSICS

    A physics book slides off a horizontal table top with a speed of 1.15 . It strikes the floor after a time of 0.360 . Ignore air resistance.Find the horizontal component of the book's velocity just before the book reaches the floor.

    asked by WASEEQ on March 3, 2012
  73. MECHANICS NEED HELP ASAP PLEASE !!!

    A block of mass 3.8 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 20 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 60 cm,

    asked by shek on December 1, 2013
  74. calculus

    A box of volume 72m^3 with square bottom and no top constructed out of two different materials. The cost of the bottom is $40/m^2 and the cost of the sides is $30/m^2. Find the dimensions of the box that minimize the total cost. How do I set up the

    asked by Samatha on November 29, 2011
  75. Pre-algebra

    I can't figure out how to solve: Question #1: Two number cubes are rolled and a coin is tossed. Find the number of possible outcomes. Question #2: What is the probability of winning a lottery game where the winning number is made up of 6 digits from 0-9

    asked by Tyler on December 3, 2009
  76. math

    a certain mountain has an elevation 19580 feet in 1907 the glacier on its peek covered 8 acres by 2002 this glacier had melted to 1 acre assume the glacier melted at a constant rate each year find this yearly rate

    asked by max on January 27, 2013
  77. Mathematics

    There were 120 multiple choice questions.a candidate was given 1mark for each correct answercand penalised ¼ mark for every wrong answer.the candidate answered all the questions and scored 80marks.find the number of correct answers given by the candidate.

    asked by Rubi on January 11, 2016
  78. algebra

    the bill(parts and labor) for the repair of a car was $458. the cost of parts was $339. the cost of labor was $34 per hour. write and solve an equation to find the nuber of hours of labor. make sure you show your work.

    asked by bre on September 18, 2008
  79. help me physics

    The femur is a bone in the leg whose minium cross-sectional area is about 3.60 E-4 m2. A compressional force in excess of 6.90 E4 N will fracture this bone. (a) Find the maximum stress that this bone can withstand. 1 N/m2 (b) What is the strain that exists

    asked by william on November 16, 2010
  80. Math

    The Position of two A and B on the earth’s surface are (36°N, 49°E) and (36°N, 131°W ) respectively. (a) The difference in long between town A and town B (2 marks) (b)) Given that the radius of the earth is 6370, calculate the distance town A and

    asked by k on April 14, 2018
  81. Celery absorbing dye

    Science Fair Project - Topic - What color will be absorbed fastest by celery. I have been assuming that the color with the smallest molecule would be absorbed fastest but I can't find any reference material on the size of color molecules. Any ideas how to

    asked by Nanci on October 16, 2008
  82. math

    kendall saw an advertisement for a used car that was being sold for 12% off.the regular price of the car is listed as $7,250.which format of the percent equation can you use to find the discount on the price of the car?justify your decition. 7,250*12/100

    asked by Lashmi on March 19, 2016
  83. BioChem

    If you want to determine the actual salicylate concentration for a sample that gives you a darker color than the highest standard, you would need to make a dilution of it. If you dilute it by mixing .25 mL of sample with .75 mL of water and then find that

    asked by Dreamland11 on October 31, 2011
  84. Algebra

    If the area & circumference had the same number value what is the diameter of the circle? A fraction i equivalent to 2/3. if 5 is added to the numerator than the fraction is 5/6. What was the original fraction? If y is four less than the square root of x,

    asked by Amy on October 31, 2014
  85. Calculus

    Suppose that the region between the x-axis and the curve y=e^-x for x>=0 has been revolved around the x-axis. Find the surface area of the solid. I got 3*pi The book shows an answer of pi * [sqrt(2) + ln(1 + sqrt(2))] Where do I go wrong? For the sides of

    asked by mathstudent on January 13, 2008
  86. Physics

    A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 52(angle sign here) downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50.0 m length of aisle. Someone tell me if

    asked by Edwin on October 24, 2010
  87. Physics

    A femur is a bone in the leg whose minimum cross sectional area is about 4.0 x 10^-4 m^2. A compressional force in excess of 6.8 x 10^4 N will fracture this bone. A.) Find the maximum stress that this bone can withstand and B.) What is the strain that

    asked by Lori on February 23, 2013
  88. 8th Grade Algebra

    Find each product. { this means the square root sign. 1. (3+2{20)(5+3{45) 2. The length and width of the rectangle are x-5 and 2x-6 a. Write a trinomial that represents that area of the rectangle. b. What is the smallest integer value of x that will give

    asked by Joy on January 19, 2009
  89. college algebra

    Charlie and Violet met for lunch at a restuarant between their two locations (exactly in the middle). It took Charlie 2.6 hours to get there, but it only took Violet two hours because she was driving 15 mph faster than Charlie. The distance between the two

    asked by elvi on October 6, 2018
  90. Math

    A rectangular garden is to be fenced off and divided into 3 equal regions by fencing parallel to one side of the garden. 200 feet of fencing is used. find the dimensions of the garden that maximizes the total area enclosed. what is the maximum area?

    asked by Usman on June 15, 2011
  91. physics

    Question Part Points Submissions Used 1 –/2.35 0/100 Total –/2.35 ... Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.53 kg mass to the spring's other end. If the spring stretches 3.9 cm

    asked by hannah on March 25, 2015
  92. physics

    Find the pressure difference on an airplane wing where air flows over the upper surface with a speed of 119 m/s, and along the bottom surface with a speed of 105 m/s. (b) If the area of the wing is 40 m2, what is the net upward force exerted on the wing?

    asked by Kim on April 25, 2010
  93. Geometry

    Two buildings are separated by an alley. From a window 80 feet above the ground in one of the buildings, it can be observed that the angle of elevation to the top of the other building is 62*, and the angle of depression the the bottom of the building is

    asked by George on October 23, 2016
  94. research paper

    My class is writing a paper on China and India and I cant seem to find these topics. although a communist country, how has china opened its boarders to international commerce? Describe the benefits China and India have gained through their presences in the

    asked by Julie on February 10, 2008
  95. calculus

    How do you find: the Integral of arcsin(1 / (sqrt x^2 - 1) ) dx ?? (The integral of arcsin of one over the squareroot of x squared minus 1) So far, I've used trig integration to simplify down to arcsin(1/tanb) *secbtanb b is theta Then, I've used

    asked by Cindy on October 13, 2008
  96. science

    provide 2 institution\community organization that are involve in supporting or giving redress to these disasters .Explain how these organization are involve in providing a safe and healthy environment.suggestion find out about NGO's or other organization

    asked by hloni on April 28, 2011
  97. Statistics

    The distribution of heights of adult males has a mean of 69 inches and a standard deviation of 4 inches. A random sample of 36 adult males is selected. Find the probability that the average height will be more than 70 inches. a.0.668 b.0.858 c.0.908

    asked by Monique on October 31, 2011
  98. 8th Grade Algebra: Radicals

    Find each product. { this means the square root sign. 1. (3+2{20)(5+3{45) 2. The length and width of the rectangle are x-5 and 2x-6 a. Write a trinomial that represents that area of the rectangle. b. What is the smallest integer value of x that will give

    asked by Joy on January 19, 2009
  99. Physics

    A block of mass 3.1 kg hangs vertically from a frictionless pulley of mass 5.9 kg and radius 14 cm. Treat the pulley as a disk. Find: a) the acceleration of the block; b) the tension in the rope; c) the speed of the block after it has fallen 55 cm,

    asked by warrren on November 28, 2011
  100. Physics

    A dentist's drill starts from rest. After 3.20 s of constant angular acceleration it turns at a rate of 2.7 104 rev/min. (a) Find the drill's angular acceleration. (b) Determine the angle (in radians) through which the drill rotates during this period.

    asked by Sam on November 4, 2010

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