1. Geometry HELP

    A soccer ball has diameter of 400 mm. A pin is stuck into the ball such that it creates the chord AC, which is 20 mm. What is the distance from the chord formed by the pin, and what is the length of EB? (Hint: CD=radius) a.)0.125 mm b.)0.5 mm c.)0.25 mm
  2. math

    A circular pool has a diameter of 3m and is filled to a depth of 70 cm. Mr Thorpe climbs into the pool and submerges for ten seconds while his son measures the new depth at 72 cm. Calculate Mr Thorpe’s volume
  3. maths

    A circular pool has a diameter of 3m and is filled to a depth of 70 cm. Mr Thorpe climbs into the pool and submerges for ten seconds while his son measures the new depth at 72 cm. Calculate Mr Thorpe’s volume
  4. Math

    A cone-shaped pile of sawdust has a base diameter of 40 feet, and is 15 feet tall. Find the volume of the sawdust pile. Round your answer to the nearest hundredth if necessary. Use 3.14
  5. Math

    Ok we are doing central angles and arcs and I can't figure out how to solve this problem: An arc is 70.7 m long and it subtends a central angle of 2ð/7. Find the diameter of the circle. How do you solve for this type of problem?
  6. physics

    A stretched wire vibrates in its fundamental mode at a frequency of 420 Hz. What would be the fundamental frequency if the wire were one fourth as long, its diameter were quadrupled, and its tension were increased two-fold?
  7. physics

    a wire has a resistance of 6 ohm it is stretched out to a new length which is three times its original length what is the resistance of the longer wire?assume uniform diameter.resistivity and density are constant
  8. Science~

    Please! Please! Please help me really quick! Pleae check my answers! 1. A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What
  9. physics

    A soccer ball of diameter 29 cm rolls without slipping at a linear speed of 3.6 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 18 m?
  10. physics

    A soccer ball of diameter 30 cm rolls without slipping at a linear speed of 3.1 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 15 m?
  11. Math - Equation of the circle

    Find an equation of the circle whose endpoints of a diameter are (−3,6) and (5,−14). I tried to figure it out, but I'm not sure if my answer is correct. I got.. (x-2)^2 + (y + 4)^2 = 116 Any help would be great. Thank you!
  12. physics

    Consider a very small hole in the bottom of a tank that is 17.0 cm in diameter and filled with water to a height of 90.0 cm. Find the speed at which the water exits the tank through the hole. A) 48.3 m/s B) 44.1 m/s C) 17.64 m/s D) 4.20 m/s
  13. math

    I have a math assignment and i am meant to do i backyard design and i have to fit in a fishpond which has an outside diameter of 2.5 and a water depth of 40cm. how should i measure it out into the backyard design?
  14. College Physics

    How many gallons of Oil would be in a cylindrical tank that was 24 feet long and had a diameter of 6 feet if the oil was 6 inches deep at the bottom of the tank?
  15. Circle geometry

    Please help Explain how I figure this out. A circle has diameter 70cm. A chord in the circle is 50cm long. How far is the chord from the center of the circle? I have been stuck on this for days. I appreciate any help. Thank you!!
  16. math

    A triangle has an area of 15 cm^2 and a base of 5 cm. If a circle is drawn with a diameter equal to the length of the triangle's height, what is the area of the circle ? a. 6 pi cm^2 b. 9 pi cm^2 c. 12 pi cm^2 d. 18 pi cm^2 e. 36 pi cm^2 please answer and
  17. Math

    Jill's front door is 42" wide and 84" tall. She purchased a circular table that is 96 inches in diameter. Will the table fit through the front door?
  18. Math

    a circular fishpond is surrounded by a path 2m wide. The inner and outer edges of the path are fenced. If the diameter of the fishpond is 8m,how much longer is the outer fence than the inner?
  19. physics

    A soccer ball of diameter 32 cm rolls without slipping at a linear speed of 2.4 m/s. Through how many revolutions has the soccer ball turned as it moves a linear distance of 16 m?
  20. physics

    Suppose that you wish to fabricate a uniform wire out of 0.900 g of copper. Assume the wire has a resistance R = 0.500 , and all of the copper is used. (a) What will be the length of the wire? (m) (b) What will be the diameter of the wire? (µm)
  21. geometry

    A circle of diameter 2 inches has its center at the center of a square with 2-inch sides. Find the area of the region that is inside the square and outside the circle.
  22. Math

    A sphere is inscribed in a right cone. The slant height of the cone = the diameter of the base of cone. If the radius of the sphere is r, find the volume of the cone in terms of r.
  23. math

    The diameter of each tire on Niki's bike is 66 centimeters (cm). It takes her 16 minutes to ride 10 kilometers (km). How fast did Niki ride, in kilometers per hour?
  24. math

    a peanut butter jar has a height of 5.9in and diameter of 3.6 in. one cubic inch holds 0.45 oz of peanut butter. How many ounces will fit in the jar
  25. s.g (math)

    if a triangle with sides 12 unit and 5 unit is inscribed in a circle with BC as diameter, then find the value of sin square theta +cos square theta -1
  26. 7th grade geometry

    A circular path two feet wide has an inner diameter of 150 feet. How much farther is it around the outer edge of the path than around the inner edge ?
  27. trig

    a central angle intercepts an arc on a circle equal in length to the diameter of the circle. find the measure, in radians, of the central angle.
  28. solid geometry

    A cone circumscribed a sphere and has its slant height equal to the diameter of its base. Show that the volume of the cone is 9/4 the volume of the sphere.
  29. Chemistry

    The specific heat capacity of solid lead is 0.159J/g°C, the molar enthalpy of fusion is 5.0kJ/mol, and the melting point of lead is 328°C. Calculate the total energy required to change 100g of lead at 25°C to molten lead at it's melting point. I will be
  30. Math

    The strength of a cable is proportional to the square of its diameter. If a 2-cm cable will support 800kg, how much will a 3-cm cable support?
  31. math

    diameter of coin is 26 mm in length find circumference & area of coin.Is 13 the answer for circumference of coin?
  32. Math

    A balloon has a diameter of 10 inches and a height of 20 inches. How much helium will it take to fill the balloon in inches cubed
  33. Chemistry

    A copper wire (density=8.96 g/cm^3) has a diameter of 0.25 mm. If a sample of this copper wire has a mass of 22 g, how long is the wire?
  34. Geometry

    line segment ab is the diameter of circle O whose center has coordinates (6,8) . what are the coordinates of point b if the coordinates of point a are (4,2)
  35. physics

    A 400N weight is sitting on a piston. The diameter of the piston is 8 cm. How much pressure does the weight exert on the piston?
  36. Geometry

    line segment ab is the diameter of circle O whose center has coordinates (6,8) . what are the coordinates of point b if the coordinates of point a are (4,2)
  37. Chemistry

    Need help, please. A copper wire (density = 8.96 g/cm^3) has a diameter of 0.25 mm. If a sample of this copper wire has a mass of 22 g, how long is the wire? Thank you.
  38. physics(URGENT!!!!!)

    A source of sound emits waves at a frequency f= 650 Hz. An observer is located at a distance d= 170 m from the source. Use u=340 m/s for the speed of sound. (a) Assume completely still air. How many wavefronts (full waves) N are there between the source
  39. Physics

    You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the back-middle of the cart, 0.525
  40. Physics

    You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the back-middle of the cart, 0.525
  41. physics

    You are given a four-wheeled cart of mass 11 kg, where the distance between a wheel and its nearest neighbors is 2.1 m. Suppose we load this cart with a crate of mass 109 kg, where the crate's center of mass is located in the back-middle of the cart, 0.525
  42. College Physics

    A fire hose 4.79 cm in diameter is capable of spraying water at a velocity of 17.1 m/s. For a continuous horizontal flow of water, what horizontal force should a fireman exert on the hose to keep it stationary?
  43. physics

    an ideal fluid in a pipe of diameter 14cm is moving at 6.0m/s. If the incompressible fluid density is 1.05grams/cc, what is the flow rate in kg/s and what is the speed of flow if the pipe narrows to 4.0cm radius?
  44. Pre calculus

    A window is made up of a circle embedded in a rectangle so that the diameter of the circle is a side of the rectangle. Find the demensions that will admit the most light if the perimeter ofthe window is 44 meters.
  45. Math

    A truck tire with a diameter of 36 in is rolling over level ground spinning at 11 rotations/second. If the speed limit is 55 miles per hour and the penalty is $20 per hour over the speed limit, should the driver be fined and if so, how much?
  46. phys102

    a copper wire has a diameter of 1.02mm,the wire carries a constant current of 1.67A,the density of the free electrons is 8.5X10^28 e/m^3.calculate the current density and drift velocity
  47. Math

    A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 24 ft, find the value of x so that the greatest possible amount of
  48. chemistry

    An argon ion laser puts 5 W of continuous power at a wavelength of 532 nm. the diameter of the laser beam is 5.5 nm. if the laser is pointed at an object, how many photons of laser will strike the object per second.|(1W=1Js-1).
  49. maths

    A storage tank is in the shape of a right circular cylinder that has a diameter of 20 inches and a height of 3yards. if oil costs $2 per cubic foot, what does it cost to fill the storage tank oil?
  50. physics

    A proton moves in a circular path perpendicular to a constant magnetuc field. If the field strengrh of the magnet is increased, does the diameter of the circular path incresse, decrease, or remain the same?
  51. geomtry

    The base of a 6-inch long ice cream cone with a diameter of 2 inches, is cut 0.25 inches from the base. The left over shape resembles a cylinder. What is the BEST estimate for this shape's volume?
  52. Geometry

    Kiley's in-line skate wheels have a 43-mm diameter. How many meters will Kiley travel after 5,000 revolutions of the wheels on her in-line skates? Round your answer to the nearest tenth of a meter.
  53. Geometry

    A regular hexagon is circumscribed about the ring surrounding the clock face. The diameter of the ring is 10in. Find the perimeter if the clock face. Please included work/steps to solve. Thanks!
  54. math

    A circular pond 26 yds in diameter is surrounded by a gravel path 2 yds wide. The path is to be replaced by a brick walk costing $50 per square yard. How much will the walk cost?
  55. Physics

    A 1.7kg block and a 2.7kg block are attached to opposite ends of a light rope. The rope hangs over a solid, frictionless pulley that is 28cm in diameter and has a mass of 0.74kg .
  56. Science

    a machine must be driven at 100 r/s from a belt pulley of 600 mm diameter revolving at 72 r/s . the maximum tensile force on the belt must not exceed 3000n .assume that the ratio of the tensile force is 2,5:1
  57. Geometry midpoint formula

    A circle on the Coordinate plane has a diameter with endpoints at (6,8) and (15,8). What are the coordinates of the center of the circle? What is the radius of the circle? Identify the coordinates of another point on the circle. Explain how you found your
  58. Physics

    A wheel spins on a horizontal axis, with an angular spped of 140rad/s and with its angular velocity pointing east. Determine the magnitude of the angular velocity after an angular acceleration of 35 rad/s^2, pointing 68 degress west of north, with a time
  59. Physics

    A wheel spins on a horizontal axis, with an angular spped of 140rad/s and with its angular velocity pointing east. Determine the magnitude of the angular velocity after an angular acceleration of 35 rad/s^2, pointing 68 degress west of north, with a time
  60. Physics

    A wheel spins on a horizontal axis, with an angular spped of 140rad/s and with its angular velocity pointing east. Determine the magnitude of the angular velocity after an angular acceleration of 35 rad/s^2, pointing 68 degress west of north, with a time
  61. Math

    The aperture setting, or f-stop, of a digital camera controls the amount of light exposure on the sensor. Each higher number of the f-stop doubles the amount of light exposure. The formula n=log_2(1/p) represents the change in the number, n, of the f-stop
  62. Math

    The aperture setting, or f-stop, of a digital camera controls the amount of light exposure on the sensor. Each higher number of the f-stop doubles the amount of light exposure. The formula n=log_2(1/p) represents the change in the number, n, of the f-stop
  63. Circle geometry

    The endpoints of the arms of an inscribed angle are the endpoints of a diameter. What is the measure of the inscribed angle? How do you know? Please help and please explain how I would draw a diagram of thus. Think you for your help!
  64. physics 23

    A 4.1-m-diameter merry-go-round is initially turning with a 4.2 period. It slows down and stops in 24 . How many revolutions does the merry-go-round make as it stops?
  65. Algebra 1

    Alisha is paying $20 for a large pizza,which is 18 inches in diameter, a better buy than paying $5 for a personal size pizza that is 6 inches across?Explain
  66. math

    A plot of land is in the shape of semicircle of diameter 28 meters. The plot fenced by erecting posts 4 meters apart. How many posts were used? (Take π =22/7)
  67. math

    A right cylinder has a diameter of 30 mm and a height of 30 mm, as shown. What is the volume of the cylinder? a. 27,000 mm3 b. 21,195 mm3 c. 2826 mm3 c. 1413 mm3 How do I do this?
  68. building a stair system

    My stair system, call it a triangle, is 360 inches in diameter, and 77.5 inches high. what is the length and formula?
  69. n2 maths

    A lead cylinder with a diameter of 25 cm and a heighth of of 40 cm is melted. the lead is used to cast lead spheres with a radius of 3 cm each. calculate how many spheres can be casted from the available lead.
  70. math

    if a cylinder with a height equal to its diameter has a volume of 20 cubic inches. How can you fine the volume of a sphere whose radius is equal to that of a cylinder
  71. surface area and volume

    The diameter of two cones are equal if their slant height are in the ratio 5:4, find the ratio of their curved surface area
  72. Math

    The radius,diameter, or circumferences of a circle is given. Find the missing measures. D=2a,r=___,C=___. For the radius I got 1a and the circumferences I got 6.28.a. Could someone check my answer? Thanks
  73. math

    A circular path 2 feet wide has a an inner diameter of 150 feet. How much farther is it around the outer edge of the path than around the inner edge? THX!
  74. Math

    In the accompanying diagram, abcd is a rectangle with ab as a diameter of semicircle o. Diagonal bd is drawn in rectangle abcd. The length of bd exceeds the length of ab by 1, and ad=5. Please help thank you
  75. Physics

    A horizontal pipe has a part with a diameter 1/3 of the rest of the pipe. If v is the speed of the fluid in the wider section, then the speed in the narrower section is:
  76. math

    in a grain bin 90' in diameter 130'tall how many bushel of grain at 1.2445 cubic feet per bushel will the bin hold?
  77. Geometry

    Is the equation correct? A circle has a diameter of 12 with a center translated 18 units left and 7 units down from the origin. 1. Write an equation for the circle. (x + 18) ^2 + (y + 7)^2
  78. Physics

    a quarter sits at the bottom of a wishing well where the gauge pressure reads 294 kPa. If the quarter has a diameter of 24mm, what is the total force acting on the top surface of the quarter? Note: Atmospheric pressure = 101.3
  79. calculus

    A hemispherical dome has a diameter of 100m. A spotlight is placed on point B along the circumference on ground level. A balloon is released at point A on the center at a rate of 2m/s. how fast is the shadow of the balloon move on the roof when the balloon
  80. Geometry

    You are designing a new container for powdered laundry detergent. You are considering a cylindrical container with a diameter of 14 inches and a height of 18 inches. Find the volume of this container to the nearest cubic unit. Use a calculator. A. 1,100
  81. CALCULUS

    A cylindrical oil storage tank 12 feet in diameter and 17feet long is lying on its side. Suppose the tank is half full of oil weighing 85 lb per cubic foot. What's the total force on one endof the tank?
  82. geomery

    1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about
  83. Calculus 1

    Gravel is being dumped from a conveyor belt at a rate of 20 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. How fast is the height of the pile increasing when the pile is 7 ft
  84. PHYSICS!!!

    A straight horizontal pipe with a diameter of 1.0 cm and a length of 46 m carries oil with a coefficient of viscosity of 0.11 N · s/m2. At the output of the pipe, the flow rate is 8.4 10-5 m3/s and the pressure is 1.0 atmosphere. Find the gauge pressure
  85. geometry

    1. Triangle ABC has a 63.0-degree angle at B, and side AC is 13.6 cm long. What is the diameter of the circle circumscribed about ABC? 2. And: Given any triangle ABC, with sides a, b, and c opposite angles A, B, and C, respectively, what can be said about
  86. Chemistry

    Which solution has the lower freezing point? 90.0 g CH3OH in 100. g H2O 180.0 g CH3CH2OH in 200. g H2O I have worked this problem for someone within the last 3-4 days. delta T = kf m kf is not needed for this problem. change 90 g CH3OH and 180 g CH3CH2OH
  87. Science

    Which of the following units are in order from smallest to largest? a) Epoch, period, era. b) Era, epoch, period. c) Period, era, epoch. d) Epoch, era, period. True or False? Folding, as well as motion along faults, can change the position of rock layers
  88. macroeconomics

    which combinations of fiscal policy actions would most likely be offsetting? A) increase taxes and government spending B) decrease taxes and increase government spending C) increase taxes, but make no change in government spending D) decrease taxes, but
  89. Math

    Kate wanted to have a cake in which Elmos’ nose was 6 inches in diameter, because the preschool is 6 years old. Her original recipe of the cake batter called for: 3 eggs, 2 baking mix, Half a cup of oil, 1 cup of water. How much of each ingredient will
  90. Physics

    A rubber ball filled with air has a diameter of 25.0 cm and a mass of 0.540 kg. What force is requiered to hold the ball in equilibrium immediately below the surface of water in a swimming pool? Start equation out by using sumF = ma Answer is 74.9 N I just
  91. MATH

    PLEASE COULD SAME ONE HELP ME. THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW AND
  92. Theory of machines

    A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine
  93. ^HYDRAULICS AND HYDROLOGY^

    Pls...,need help. QUESTION=Water flows through a pipe of diameter 300mm with a velocity of 5m/s.if the coefficient of friction is given by f=(0.015)+(0.08/Re^0.3) where Re is the Reynoid number. Take kinematic viscosity of water as 0.01stoke. *Find the
  94. Physics

    A raft is made of 14 logs lashed together. Each is 29.5 cm in diameter and has a length of 6.50 m. How many people (whole number) can the raft hold before they start getting their feet wet, assuming the average person has a mass of 75.0 kg? Do not neglect
  95. MATH

    THREE 2 INCH DIAMETER TENNIS BALLS SNUGLY FIT IN A CYLINDRICAL CAN. THE BALLS TOUCH THE SIDE, TOP AND BOTTON OF THE PLASTIC CAN. HOW MUCH AIR IS IN THE CAN? ROUND DECIMAL ANSWERS TO THE NEAREST TENTH OF A CUBIC INCH. SHOW OR EXPLAIN HOW YOU GOT YOUR
  96. rotational motion physics

    A 3.7 m diameter merry-go-round is rotating freely with an angular velocity of 0.63 rad/s. Its total moment of inertia is 1600 kg\cdot m^2. Four people standing on the ground, each of mass 70 kg, suddenly step onto the edge of the merry-go-round.
  97. english

    I'm not sure about my answers . The directions state rewrite the following sentece, focusing on the grammar and rule are . If the sentence is already correct write no change. Can you help me correct them please. The grammar rule is for sentences 1 & 2:
  98. envirn. please revise

    In your own words, define environmental sustainability. Then, list three behaviors of your own that threaten environmental sustainability. How could you change those behaviors to reduce threats to environmental sustainability? Environmental sustainability
  99. physics

    Two 0.55 kg basketballs, each with a radius of 15 cm, are just touching. Ignore any other gravitational interactions. (a) How much energy is required to change the separation between the centers of the basketballs to 1.0 m? (b) How much energy is required
  100. Calculus I

    Suppose we have a metal bar of length L0 metres at temperature T0 in degrees Celsius.When the bar is heated or cooled, the length of the bar changes. The amount that the length changes is proportional to the product of the temperature change and the