1. Physics

    A cue ball collides with two other snooker balls and comes to a complete stop. The angles between the centres at the point of collision are shown below. If the velocity of the incoming cue ball is 5 m/s, determine the velocities of all moving balls after

    asked by Olumide Adesiyan on April 14, 2014
  2. physics

    Water is shooting at the same speed out of the three tubes placed on the ground at different angles of 60°, 45°, and 30° to the horizon. Find the ratio of the greatest heights the streams can reach and the ratio of distances from the mouths of the tubes

    asked by Anonymous on August 18, 2011
  3. logic and design

    You have been contracted by a local antique store to design an algorithm determining the total purchases and sales tax. According to the store owner, the user will need to see the subtotal, the sales tax amount, and the total purchase amount. A customer is

    asked by EJ on January 15, 2012
  4. Math

    determine the length of the sides and the measures of the angles for the congruent quadrilaterals B'C' (On the picture it shows 50 degrees for B'C'(which is on the left hand side) and 9 for D'A' (On the right hand side)the picture shows that it is upside

    asked by Geena on May 6, 2011
  5. fast answer plss

    the sum of four angles about a point is 360degree.the measure of the 2nd angle is 6degreemore than 3times the 1st,the measure of the 3rd is 3degree more than twice the first,the measure of the 4th is 20 degree less than the 3rd.what is the measure of each

    asked by math algebra on October 11, 2013
  6. math

    A fishermen 's spring scale is extended to a total length of 0.18m when 0.12 kg fish is suspended from it .If the spring constant is 100N/ m ; what is the total length of the spring when 11.4 kg fish is suspended from it

    asked by chipondiwa george on March 6, 2016
  7. algebra

    Tickets to a sporting event cost $6 for children and $8 for adults. The total revenue from the tickets sold was $2340. There were 320 total tickets sold. How many children’s tickets were sold?

    asked by Brooke on October 13, 2017
  8. Math Word Problem

    Each course at college X is worth either 4 or 5 credits. The members of the​ men's swim team are taking a total of 52 courses that are worth a total of 22 credits. How many ​4-credit courses and how many 5​-credit courses are being​ taken?

    asked by Rebel on February 27, 2016
  9. Chemistry

    A sample of propane, C3H8, contains 10.0 moles of carbon atoms. How many total moles of atoms does the sample contain? Express the total number of moles of carbon and hydrogen numerically.

    asked by Aria on March 31, 2016
  10. Project Management

    Case Study: Calcutta's Metro In 1996, Calcutta’s long-waited metro finally opened to a collective sigh of relief from the long-suffering population of this large Indian city. Critics had long derided the project a one of the “slowest-moving” public

    asked by animal on October 5, 2008
  11. Physics

    The coefficient of static friction between the m = 3.75-kg crate and the 35.0° incline of the figure below is 0.320. What minimum force vector F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by Ryan on March 11, 2015
  12. Physics

    The coefficient of static friction between the m = 3.20-kg crate and the 35.0° incline of the figure below is 0.260. What minimum force vector F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by James on March 4, 2014
  13. physics

    The coefficient of static friction between the 3.0 kg crate and the 31° incline shown below is 0.300. What is the magnitude of the minimum force, F, that must be applied to the crate perpendicularly to the incline to prevent the crate from sliding down

    asked by sammy on October 23, 2011
  14. Statistics

    Can any one help me with this? ThermoStar has been producing residential thermostats for over 50 years. Looking over the past 20 quarters (5 years) of the different product lines, the general manager has been trying to get a handle on sales, costs, and

    asked by Trisha on August 20, 2009
  15. Englsih

    Can someone please proofread this essay? Totalitarianism Throughout World War 1 there were many totalitarian leaders that wanted to take over of a country. Leaders such as Stallin wanted to take over of a country forcing people to do what they told them to

    asked by Mario Garcia on February 15, 2013
  16. Quantum computers

    PROBLEM 5 Suppose we ran m steps of Grover's algorithm on some function f (which has one marked element y) and the resulting superposition was exactly |y⟩. PROBLEM 5A (4 points possible) If we run for m+1 additional steps (i.e. total of 2m+1 steps from

    asked by Manquillo on October 19, 2013
  17. college

    Answer the problems below and show or explain how you arrived at your final answer. 1. You sell premium toasters and are making a pricing decision. At a price of $100 (or “p = $100”) you predict that you can sell 30 of these premium toasters at your

    asked by jj on April 13, 2010
  18. Math (Please help immediately)

    Two angles form a linear pair. The measure of one angle is 8 times the measure of the other angle. Find the measure of each angle.

    asked by C on September 7, 2012
  19. Algebra Alley(MATH)

    Triangles ABC and RST are similar triangles. Angle A=2(x+15)^0 angle S=3x^0,and angle C=x^0. What are the measures of angles B,R,and T? What kind of triangles are they?

    asked by Bionca on September 21, 2010
  20. Math

    'one angle is 4 times as large as another angle of the same triangle. the third angle o the triangle has a measure of 60 degress.' what are the measures of the other two angles in the triangle.

    asked by Mike on February 24, 2012
  21. Physics

    The coefficient of static friction between the 2.90 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by David on October 7, 2013
  22. physics newtons laws 3

    The coefficient of static friction between the m = 3.20 kg crate and the 35.0° incline of Figure P4.41 is 0.260. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by luc on October 19, 2009
  23. Physics

    The coefficient of static friction between the 3.00 -kg crate and the 35 degree incline is .300. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline.

    asked by Jas on September 26, 2011
  24. physics

    The coefficient of static friction between the 2.3 kg crate and the 35.0° incline of Figure P4.47 is 0.241. What minimum force, F, must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by Anonymous on October 5, 2012
  25. physics

    The coefficient of static friction between the 2.3 kg crate and the 35.0° incline of Figure P4.47 is 0.241. What minimum force, F, must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by Anonymous on October 5, 2012
  26. physic

    The coefficient of static friction between the m = 3.20 kg crate and the 35.0° incline of the figure below is 0.340. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by Chan on October 16, 2009
  27. math

    Hi! I am super confused with this question and really need help. In a right triangle with a leg of 4 and a hypotenuse of 8, find the measures of all angles. a. 27 degrees, 63 degrees, 90 degrees b. 30 degrees, 60 degrees, 90 degrees c. 40 degrees, 50

    asked by girly girl on January 30, 2018
  28. Math

    Two dogs are 180 ft apart on opposite sides of a tree. The angles of elevation from the dogs to the top of the tree are 35 degrees and 23 degrees. What is the height of the tree?

    asked by May on July 30, 2008
  29. trig

    weather balloon is directly west of two observing stations that are 10 mi apart. The angles of elevation of the balloon from the two stations are 17.6 degrees and 78.2 degrees. How high is the balloon?

    asked by alth on October 8, 2012
  30. Geometry

    The measure of angle B, the supplement of angle A, is four times the measure of angle C, the complement of angle A. I need to find the measure of all angles and i have no idea of where to start, any help would be appreciated.

    asked by Anonymous on October 22, 2012
  31. math

    a triangle has three internal angles. one angle measures 37 degrees another one measures 67 degrees. how many degrees does the third angle measure? 1) 28 2) 34 3) 76 4) 256 5) not anought information is given

    asked by michael on May 10, 2010
  32. math

    The measure of one angle is six more than three times the measure of another angle. If the two angles are complementary, find the measure of each. i keep trying to answer these type of questions but i always get the wrong answer?

    asked by Kenny on August 8, 2016
  33. English

    I'm writing a creative writing piece for class and have trouble coming up with a coherent plot. Basically I'm stuck with a question. Why would two normal teenagers (boy and girl) suddenly have to run for their lives? Any advice is much appreciated I just

    asked by Kadley on July 22, 2016
  34. working in a pharmacy

    when a special begins to lose its impact you should a.transfer the products to theshelves at their normal price b.move the products to another spot c.send the stock back to the manufacture or supplier. d.set up an attractive display using your product

    asked by susue on January 23, 2013
  35. Science

    Adam suffers from severe emphysema. Gas exchange in his lungs is not adequate, and he requires supplemental oxygen. But even though his blood carbon dioxide levels are elevated, his blood pH is close to normal. Considering the urinary system, explain how

    asked by Colleen on July 30, 2014
  36. anatomy

    When comparing Tay-Sachs disease and Duchenne's muscular dystrophy which of the following do both have in common? A.they both involve malfunction of the nervous system B.they both involve mutations in which fat replaces normal tissue C.they both are

    asked by unknown on October 1, 2008
  37. Intermediate Algebra

    A car used 3.5 gallons to make a 110 mile trip. How many gallons of gas would it take the same car to make a 360 mile trip

    asked by Christell on May 1, 2012
  38. physics

    A large grinding wheel in the shape of a solid cylinder of radius 0.370m is free to rotate on a frictionless, vertical axle. A constant tangential force of 470 N applied to its edge causes the wheel to have an angular acceleration of 0.800 rad/s2. (a) What

    asked by Anonymous on November 11, 2012
  39. physics

    A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 210 N applied to its edge causes the wheel to have an angular acceleration of 1.161 rad/s2. (a)

    asked by Anonymous on November 9, 2011
  40. Chemistry

    "Suppose some sort of clamp is applied to hold an electron fixed at the distance of 2.5 Angstroms from a lithium nucleus Li3+ which is also clamped into position. Calculate the magnitude of the force between the two fixed particles." The books says the

    asked by Zach on October 17, 2011
  41. Math

    A glass is filled with water and the total weight is 220g. If the glass is halffilled with water, the total weight is 120g. What is the net weight of the glass? There may be a logic way of doing it but the following is the longer "math" way. G = weight of

    asked by Anonymous on April 1, 2007
  42. Cranes

    08/09/2005 Physics A crane is lifting a 200 pound object. The crane boom is 50 ft long. The boom forms an 85 degree angle with the horizontal. What is the torque applied to the crane boom?

    asked by Jerry on October 24, 2011
  43. Physics

    a 0.2kg rubber ball is dropped from the window of a building. It strikes the sidewalk below at 30 m/s and rebounds up at 25 m/s. If the ball is in contact with the sidewalk for 0.025s, what is the magnitude of the average force applied by the sidewalk on

    asked by Jazmin on October 22, 2012
  44. Physics !

    Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power

    asked by Ciara on April 8, 2015
  45. programming

    Assume the input to be the charge for the food, draw a flowchart that will compute the total amount of a meal purchased at a restaurant. The output should be the charge for the food, the amount of a 15 percent tip, the amount of the 7 percent sales tax (on

    asked by stephanie on August 20, 2014
  46. I NEED HELP WITH THIS

    Three identical light bulbs are connected in series, then are disconnected and arranged in parallel. For each of the scenarios below indicate what changes (if any) take place A. Total resistance of the circuit B. Total current of the circuit C. Power

    asked by Ciara on April 7, 2015
  47. Math

    Rainbow Harbor Cruises charges $16/adult and $8/child for a round-trip ticket. The records show that, on a certain weekend, 900 took the cruise on Saturday and 600 took the cruise on Sunday. The total receipts for Saturday were $12,800, and the total

    asked by Bersy on January 26, 2013
  48. Math

    Rainbow Harbor Cruises charges $16/adult and $8/child for a round-trip ticket. The records show that, on a certain weekend, 900 took the cruise on Saturday and 600 took the cruise on Sunday. The total receipts for Saturday were $12,800, and the total

    asked by Bersy on January 26, 2013
  49. math

    Rainbow Harbor Cruises charges $16/adult and $8/child for a round-trip ticket. The records show that, on a certain weekend, 1400 took the cruise on Saturday and 1000 took the cruise on Sunday. The total receipts for Saturday were $18,400, and the total

    asked by Anonymous on November 17, 2014
  50. physics

    What's your normal body temperature? It may not be 98.6°F, the oft-quoted average that was determined in the nineteenth century. A more recent study has reported an average temperature of 98.2°F. What is the difference between these averages, expressed

    asked by Anonymous on November 25, 2013
  51. AP calculus

    Find the equation of the normal to the curve f(x) = 3cos(2x) at the point x = 0. In class, we learnt to find the derivate of the function, which would represent the slope. After I did that, I found the slope to be 0.. but that is not what my graphing

    asked by cel on October 27, 2010
  52. elementary statistics

    The distribution of cholesterol levels in teenage boys is approximately normal with u=170 and o=30. Levels above 200 warrent attention. Find the probability that boy has a cholesterol level greater than 225.

    asked by joanne on May 30, 2011
  53. stats

    glucose level in patients free of diabetes are assumed to follow a normal distribution with a mean of 120 and a standard deviation of 16. (20 pts) What proportion of patients has glucose levels exceeding 115?

    asked by genia on July 26, 2015
  54. chemistry

    The normal boiling point of liquid butanol is 391 K. Assuming that its molar heat of vaporization is constant at 45.9 kJ/mol, the boiling point of C4H9OH when the external pressure is 0.647 atm is

    asked by Anonymous on December 1, 2017
  55. college

    Suppose that, for a certain exam, a teacher grades on a curve. It is known that the grades follow a normal distribution with a mean of 70 and a standard deviation of 7. There are 45 students in the class. How many students should receive an A? Please,

    asked by Anonymous on December 23, 2010
  56. physics

    A person pushes a 11.0 kg lawn mower at constant speed with a force of 82.0 N directed along the handle, which is at an angle of θ = 45.0° to the horizontal.Calculate the normal force exerted vertically upward on the mower by the ground.

    asked by Anonymous on November 5, 2010
  57. Criminal Justice

    Which statement best describes physical aggression in preschool children? A. It is a strong predictor of later violence. B. It declines if ignored by caretakers. C. It is a normal developmental behavior. D. It rarely, if ever, occurs in preschool children.

    asked by Amy on August 20, 2014
  58. Physics

    A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.

    asked by mm on March 30, 2010
  59. Calc I

    I need to find the equations of the tangent and normal line for x^2-y^2=16, at the point (-5,3). I have to show every detail for my work...then use graphing software to enter my equations, so can anyone help me showing all the details of the work so that I

    asked by Kejo, Help!!!! on June 28, 2011
  60. statistics

    The true highway mileage, Y, of a specific brand of hybrid vehicle has a normal distribution with a mean of 42 and a standard deviation of 1.5. Find the probability that a randomly selected hybrid vehicle gets more than 38 miles to the gallon.

    asked by lisa on June 17, 2014
  61. Math (Solving Equations)

    Find all solutions (answers should be given in simplified form). Some answers may involve the number i. *I will use lowercase l to represent absolute value lines.* 3 lx-1l + 4 = 19 We've never really worked with absolute value in solving equations before.

    asked by Leah on May 17, 2015
  62. Statistics

    A simple random sample of 10 households, the number of TV's that each household had is as follows: 1, 3, 1, 2, 0, 2, 1, 1, 1, 5 Assume that it is reasonable to believe that the population is approximately normal and the population standard deviation is

    asked by Anonymous on June 26, 2013
  63. math 12

    In his best year, Mickey Mantles batting average was o.365. In that year, what was the probability that he would get exactly 5 hits in 15 times at bat? Compare the results from the normal approximation with the results from a calculation using a binomial

    asked by kitkat on January 23, 2011
  64. math 12

    In his best year, Mickey Mantles batting average was o.365. In that year, what was the probability that he would get exactly 5 hits in 15 times at bat? Compare the results from the normal approximation with the results from a calculation using a binomial

    asked by kitkat on January 19, 2011
  65. statistics

    The GPAs of all students enrolled at a large university have an approximately normal distribution with a mean of 3.02 and a standard deviation of .29. Find the probability that the mean GPA of a random sample of 20 students selected from this university is

    asked by lol on April 16, 2013
  66. physics

    an athlete has a large lung capacity of 7.0L. Assuming to be an ideal gas how many molecules of air are in the athletes lungs when the air temperature in the lungs is 37 degrees celcius under normal atmospheric pressure.

    asked by Standard C. on February 28, 2010
  67. Physics

    A light ray strikes a flat, L = 3.7 cm thick block of glass of refractive index 1.47 in the attached figure, at an angle of È = 340 with the normal. Calculate the lateral shift of the light ray, d.

    asked by mm on March 30, 2010
  68. physical edu

    Homeostasis a. is a state of unmanaged stress. b. describes the body during the fight-or-flight reaction. c. is a state of normal "housekeeping" functions. d. is the response of the body to prolonged exposure to stressors. I'm confused between D & B

    asked by Andy on June 18, 2012
  69. statistik

    twenty percent of the employees of a large company are female.use the normal approximation of the binomial probabilities to answer the following question. what is the probability that in a random sample of 80 employeses a)exactly 16 will be female? b)14 or

    asked by mira on November 28, 2012
  70. chemistry

    Under an O2 pressure of 1.00 atm, 28.31 mL of O2 dissolves in 1.00 L H2O at 25 degrees. Determine the molarity of O2 in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of O2 in air is 20.80 \%. (Have no idea

    asked by david on February 21, 2010
  71. chemistry

    Under an O2 pressure of 1.00 atm, 28.31 mL of O2 dissolves in 1.00 L H2O at 25 degrees. Determine the molarity of O2 in an aqueous solution at equilibrium with air at normal atmospheric pressure. The volume percent of O2 in air is 20.80 \%. (Have no idea

    asked by david on February 20, 2010
  72. Physics

    A shell is launched at 140 m/s 56.0 degrees above the horizontal. When it has reached its highest point, it launches a projectile at a velocity of 110 m/s 35.0 degrees above the horizontal relative to the shell. 1) Find the maximum height (in m) about the

    asked by . on September 18, 2010
  73. Geometry- how to write proof

    ABC is a right triangle. Angle C is 90 degree. Altitude CD is drawn to hypotenuse AB. Prove AB/BC = BC/BD and AB/AC = AC/AD This is a theorem. How do I prove it? Thanks. Dont you have similar triangles? You can show this by looking at the angles

    asked by Jen on February 23, 2007
  74. Physics

    Mass 1 and mass 2 are connected as shown by a massless, non-stretch rope that passes over a massless, frictionless pulley. The masses are on inclines which have friction. When the angles of the string are as given, mass 1 experiences an acceleration up the

    asked by Zac on July 26, 2012
  75. College Algebra and Trigonometry

    Two guys wires for a radio tower make angles with the horizontal of 50 degree and 49 degree. If the ground anchors for each wide are 150feets apart, find the length of each wire assuming the wires are straight and find the height of the tower?

    asked by Julani on November 5, 2012
  76. Physics

    1)A 0.050 m long wire is carrying a current of 2.0 A at right angles to a 0.15 T magnetic field. What is the magnitude of the force exerted by the magnetic field on the wire? F=ILB (0.050)(2.0)(0.15) 0.015 N 2)Which device is used to measure very small

    asked by Jon on April 11, 2008
  77. Economics

    Mallory's total income last year was $24,000, but she could deduct $12,000 for various reasons. Her taxable income equals the amount left over after deductions. If she had to pay 15 percent of her taxable income in federal income tax, which you can

    asked by Kesha on March 16, 2015
  78. math

    Jackson has 14 pet birds and rabbits. The total number of rabbits have 44 more legs than the total number of birds. How many pets birds does he have?

    asked by Jada on October 17, 2013
  79. science quiz pls help!!!

    In the following diagram, the green ball changes direction after colliding with the red ball because the red ball has more momentum. True False***? 2. What is the momentum of a 20.0 kg scooter traveling at 5.00 m/s. 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100

    asked by TTR+S<3 on March 18, 2014
  80. math

    Three forces act on a hockey pick as it slides across the ice; the normal force N represents the force the ice exerts upward on the puck and is given by N= , the gravitational force G represents the downward force of gravity on the puck and is given by G =

    asked by Ryan on May 6, 2013
  81. verbs

    were suppose to find out if these are linking or action and find the verb this is what i put(also can you i dentify 4 helping verbs in the sentences 1)Mail travels overseaes on airplanes action travels 2)Mail also can go overseas by boats action go 3)Boats

    asked by Bob on October 29, 2008
  82. Statistics

    A mathematically defined curve that is the comparison distribution used in ANOVA is called the: - Normal distribution - Chi Square distribution - F distribution - T distribution

    asked by Trey on October 11, 2009
  83. calculus

    Find an equation of the plane through the point and perpendicular to the given vector. (7, 1, 5) ‹-3, 1, 2› I think I need the normal vector, but how do I find it? And then what do I do? Thank you.

    asked by lines & planes on August 25, 2011
  84. Physics

    A 25 N book sits on a table. What is the magnitude of the normal force the table exerts on the book?

    asked by Rachel on June 13, 2012
  85. physics

    - a 40 kf milk crate is placed on a 20◦ ramp. determine the force normal of the mil crate on the ramp.

    asked by Anonymous on December 14, 2010
  86. psychology

    In a normal distribution, what percentage of scores will fall between one standard deviation below the mean and one standard deviation above the mean?

    asked by alex on April 18, 2017
  87. physical

    What is the value of the normal force if the coefficient of kinetic friction is 0.22 and the kinetic frictional force is 40 newtons?

    asked by Anonymous on November 17, 2014
  88. geometry

    The skipper of a boat knows that the water is too shallow to bring his boat inside a "danger semicircle" that goes from lighthouse to lighthouse. How can the angle between his sightings of the two lighthouses help him decide when he is entering the danger

    asked by Lauren on December 6, 2009
  89. math

    You have found a summer job manning a lighthouse off the northern coast of Vancouver Island. It is a lonely job and you feel the need for some mental stimulation. In your position, 40 m above sea level, you observe two sailboats in line with the

    asked by matt on December 4, 2012
  90. physics

    A crate of weight Fg is pushed by a force on a horizontal floor. (a) If the coefficient of static friction is μs, and is directed at angle θ below the horizontal, show that the minimum value of P that will move the crate is given by the following

    asked by greg on October 17, 2011
  91. Trigonometry

    a boy standing 70m away from a flag–post observes that the angles of elevation of the top and bottom of the tower on top the flag–post are 70^ and 69^ respectively. Find the height of the tower

    asked by Daniel on October 23, 2017
  92. can u help me

    Which of the following statements is always true of similar polygons? (1 point) Corresponding angles of similar figures have the same measure. The lengths of corresponding sides form equivalent ratios. The lengths of corresponding sides have the same

    asked by tesj on January 17, 2013
  93. Trigonometry

    Two observers who are 2 miles apart on a horizontal plane observe a balloon in a same vertical plane with themselves. the angles of elevation are 50 degrees and 65 degrees respectively. find the height of the balloon,(a)if it is between the observers;(b)if

    asked by Jam on August 2, 2014
  94. Geometry

    Quadrilateral RUBY is a rectangle. Which of the following statements MUST be true? Check all that apply: [] All four of the sides of RUBY are equal. []All four of the angles of RUBY are equal. []RUBY has two pairs of parallel opposite sides.

    asked by Jess on December 10, 2013
  95. Pre Calc

    I have no idea how to do this problem I thought you would have to do something with the diagonals but not sure... The parallel sides of a trapezoid are 4 and 10 centimeters long and the oblique sides are 8 and 12 centimeters long. Fi9nd the angles and the

    asked by Pre Calc on October 5, 2009
  96. Physics

    A shock absorber is a form of spring that resists compression. If a 200.0 N force is applied to a particular shock absorber, it is compressed 2.1 cm. What is the proportionality constant for this shock absorber?

    asked by Anonymous on January 13, 2018
  97. science

    The coefficient of static friction between 3.00 kg crate and the 35.0 incline is 0.300.what minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline

    asked by kathy on September 13, 2017
  98. Physics

    The coefficient of static friction between the m = 2.95-kg crate and the 35.0° incline is 0.345. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?

    asked by Lala on October 26, 2011
  99. Math

    The table gives, for a particular object, the acceleration A caused by an applied force F. Acceleration (A)10 15 20 25 30 Force(F) 50 75 100 125 150 What force is required to produce an acceleration of 19? A) 19 B) 95 C) 114 D) 38

    asked by Sharee on August 5, 2010
  100. physics

    In the figure below, a constant force of magnitude 82.0 N is applied to a 2.55 kg shoe box at angle = 64.5°, causing the box to move up a frictionless ramp at constant speed. How much work is done on the box by a when the box has moved through vertical

    asked by Anonymous on October 14, 2012