1. math

    If you had a fraction strip folded into tenths what fractional lengths could yu measure with the strip?
  2. Physics

    A wheel turns through 90.0 revolutions in 15.0 sec. The angular speed at the end of this 15.0 sec period is 10.0 rev/s. Assuming that the angular acceleration is constant, calculate a) the angular speed at the beginning of the 15.0 sec interval, and b) the
  3. Science

    Give two advantages that a telescope lens or mirror of large diameter has over one of small diameter The light-gathering power of an optical telescope is directly related to the diameter (or aperture) of the objective lens or mirror. Note that the area of
  4. Math

    convert 0.0125 to a fraction and simplify what is the 0.0125 in fractional notation?
  5. grammar please help!

    3. The sun shines more brightly at noon than at dusk. a. Change more to most . b. Change brightly to brighter . c. Change more brightly to brightlier . d. Make no change
  6. Physics

    The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on. If the atom's diameter is 1 multiplied by 10-10 m in its lowest energy state, what is its
  7. Working With Decimals

    Compare decimal notation to fractional notation. Which is easier to work with, in your opinion?
  8. physics

    a lead bullet is placed in a pool of mercury. what fractional part of the volume of the bullet is submerged?
  9. 6th grade

    if you had a fraction strip folded into tenths, what fractional lengths could you measure with the strip?
  10. math

    Your friend says that 14.5% is equivalent to the decimal 14.5. Explain why your friend is incorrect by comparing the fractional equivalents of 14.5% and 14.5.
  11. computer

    write the following exponent.form.into fractional form: 1) 55.67878E05 2) 67.34567-E04 3) 34.5678E05
  12. Physics

    A force of 20 N is applied horizontally to a 1 kg mass on a level surface. The coefficient of friction is .2. if the mass is moved a distance of 5m what is the change in KE? W= change in Ke Fd= Change in KE (20)(5)=Change in Ke 200 J =change in Ke But the
  13. chemistry

    how would you go about calculating the change in H' of the reaction 2N2O <-> 4NO2+O2 if you are given the H'of formation for N2O and NO2 but not the H' of formation for O2? is H' of O2 zero? if so why? and also how can you tell to use change in
  14. Physics

    Look up or derive the frequencies of the standing waves of a length of wire, L, clamped at the ends and under tension. What are the similarities and differences between a vibrating string and a resonating pipe? Does the diameter of the wire matter? Does
  15. Physics

    Consider a rod plus disc system. The rod has a total length L =1.30 m, while the disc has a radius of R = L/2. The pivot is at P where the distance between P and the end of the rod is L/4. Point O is at the center of the disc, and the distance between O
  16. 6th grade math

    fraction strip folded into 12ths what fractional length could you measure with the strip?
  17. Math

    A printer has 15 rolls of newsprint in a warehouse. What fractional total will remain (in lowest terms) after 10 rolls are used?
  18. chem

    Does anyone know what graph you would obtain if the fractional distillation had been a complete separation of pure toluene or pure cyclohexane?
  19. Algebra II

    The resistance of a wire is inversely proportional to the square of its diameter. If an AWG (American wire gauge) size 12 conductor (0.0808-in. diameter) has a resistance of 14.8, what will be the resistance of an AWG size 10 conductor (0.1019-in.
  20. Algebra 2

    i need help, step by step, in solving for fractional coefficients. can someone walk me through?
  21. Math

    Like fractional notation, __________ notation is used to denote a part of a whole.
  22. physics

    The moon's diameter is 3.48 106 m, and its mean distance from the earth is 3.85 108 m. The moon is being photographed by a camera whose lens has a focal length of 48.5 mm. (a) Find the diameter of the moon's image on the slide film. (b) When the slide is
  23. physics

    In a cargo plane, the center of gravity must be between the front and rear landing gears in order to maintain a torque equilibrium. The front landing gears help counteract the torque provided by the rear landing gears in this case. A jet transport has a
  24. REALLY EASY

    Which of the following explanations correctly describes the reason we see the Sun rise and set each day? 1.The Sun rotates on its axis 2.The Earth revolves around the Sun in an elliptical path 3.The Earth rotates on its axis 4.The Sun revolves around the
  25. physicssssss

    In a cargo plane, the center of gravity must be between the front and rear landing gears in order to maintain a torque equilibrium. The front landing gears help counteract the torque provided by the rear landing gears in this case. A jet transport has a
  26. chem

    if a fractional distillation failed to separate two components efficiently, what alternatives would one consider to effect clean separation by distillation?
  27. Algebra joint, inverse and direct variation

    Urgent! If t varies inversely as the cube of z and directly as the square of r, and t=4 when z=3 and r=6, find t when z=6 and r=9. T= k (square) r/(cubed) z 4=k (square) 6/ (cubed) 3 The electrical conductance of a wire varies directly as the square of its
  28. Rational Expressions Algebra

    Electronics The electrical resistance (r) of a cable varies directly (y=kx) as its length (l) and inversely (y= k/x) as the square of its diaeter (d). If a cable 16,000 ft long and 1/4 in. in diameter has a resistance of 3.2 ohms, what is the resistance of
  29. physics

    1.An elastic cord is 5.0m long and 1.0cm in diameter and acts as a spring with spring constant 70 N/m, what is the young's modulus for this material? 2.A heavy uniform beam of mass 8000 kg and length 2.0m is suspended at one end by a nylon rope of diameter
  30. AP Calculus BC

    A cylindrical tank is constructed to have a diameter of 5 meters and a height of 20 meters. Find the error in the volume if: (a) the diameter is exact but the height is 20.1 meters (b) the height is exact, but the diameter is 5.1 meters.
  31. Physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest or “ground” state, n=3 is the third state, and so on. If the atom’s diameter is
  32. physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or “ground” state, n=3 is the third state, and so on. If the atom’s diameter
  33. Physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n^2, where n=1 labels the lowest or "ground" state, n=3 is the thrid state, and so on. If the atom's diameter is 1 x
  34. Physics

    A wheel is rotating freely with an angular speed of 4840rad/s on a shaft whose moment of inertia is negligible. A second wheel, initially at rest and with 8 times the rotational inertia of the first is suddenly coupled to the same shaft. a) What is the
  35. physics

    A wheel is roatating freely at an angular speed of 800 rev/min on a Shaft of negligible moment of inertia. A second wheel initially at rest and with twice the moment of inertia of the first, is suddenly coupled to the same shaft. (a) what is the angular
  36. physics

    A wheel is roatating freely at an angular speed of 800 rev/min on a shaft of negligible moment of inertia. A second wheel initially at rest and with twice the moment of inertia of the first, is suddenly coupled to the same shaft. (a) what is the angular
  37. Chemistry

    The phrase “the heat absorbed or released by a system undergoing a physical or chemical change at constant pressure” is a. the change in enthalpy of the system. b. the change in internal energy of the system. c. the definition of a state function. d.
  38. Math

    If you had a fraction strip folded into twelfths, what fractional lengths could you measure with the strip? b. How is your answer in part (a) related to the factors of 12?
  39. physics

    A spherical shell of radius carries a uniform surface charge density (charge per unit area) . The center of the sphere is at the origin and the shell rotates with angular velocity (in rad/sec) around the -axis ( at the origin). Seen from below, the sphere
  40. math

    what is the equation for selecting a winning numbers for a lotto wheel if 90 numbers are put in the wheel and five had been selected first 13-6-60-24-48 what is the equation for selecting five another winning numbers
  41. ELA

    What should be changed in this sentence? Yes, only six rooms is finished A. change Yes, to Yes B. change is to are C. change finished to finish D. make no change B? What should be changed in this sentence? Construction was started eight years ago in 1792,
  42. Chemistry

    Why is a Gas Chromatography separation more efficient than a fractional distillation? What characteristics must the liquid stationary phase have? describe a method for identifying a compound using GC analysis. If you could answer anyone of these that would
  43. diameter

    if the sum of the diameters of two circles is 28 inches one circle has a diameter that is 8 inches longer than the diameter of the other what are the diameters of the two circles
  44. physics

    What two facts did Newton need to be able to calculate the acceleration of the Moon? A) the distance to the Moon and the diameter of the Moon B) the time it takes the Moon to make one revolution and the distance from the Earth to the sun C) the diameter of
  45. physics

    What two facts did Newton need to be able to calculate the acceleration of the Moon? 1) the distance to the Moon and the diameter of the Moon. 2)the time it takes the Moon to make one revolution and the distance from the Earth to the sun. 3)the diameter of
  46. physics

    What two facts did Newton need to be able to calculate the acceleration of the Moon? 1) the distance to the Moon and the diameter of the Moon. 2) the time it takes the Moon to make one revolution and the distance from the Earth to the sun. 3) the diameter
  47. math

    A cross section of a hollow circular pipe shows that its inner diameter is 2 1/10 inches and that the pipe is 3/5 inch thick. What is its outside diameter?
  48. Math

    The inner diameter of a piston is normally distributed with mean of 10 cm and standard deviation 0.03cm a)below what value of inner diameter will fall fifteen percent of the piston rings?
  49. fluid mechnics

    A 1 diameter pipe with volumetric flow rate of 1 m³/s has a constriction down to half the original diameter.what is the velocity in the constriction.
  50. physics

    A piston, A, as shown below, has a diameter of 0.54 cm. A second piston, B has a diameter of 3.8 cm. Determine the force, F, necessary to support the 500.0 N weight in the absence of friction.
  51. math

    a cross section of a hollow circular pipe shows that its inner diameter is 2 1/10inches and that the pipe is 3/5inch thick. what is the outside diameter
  52. physics

    A tennis ball has a mass of 58 g and a diameter of 8 cm. Find the moment of inertia about its diameter. Assume that the ball is a thin spherical shell.
  53. Statics

    An aluminum wire has a diameter of d in. Determine the minimum diameter D of the coil in which the wire can be wound without exceeding a bending stress of 30,000psi
  54. Math

    Janet has a circular garden in her front yard with a diameter of 8 feet. How does the diameter d compare to the circumference C of the garden? f) d = 1/3C g) d = 1/2C h) d = 2C i) d = 3C
  55. Math

    Janet has a circular garden in her front yard with a diameter of 8 feet. How does the diameter d compare to the circumference C of the garden? F) D = 1/3C G) D = 1/2C H) D = 2C I) D = 3C
  56. Physics

    A piston, A, has a diameter of .87 cm. A second piston, B, has a diameter of 5.6 cm. Determine the Force "F" necessary to support the 850 N weight in the absence of friction.
  57. Math

    Ernesto makes a snack mix. For every cup of raisins he adds 2 cups of peanuts and 3 of pretzels. What fractional part is peanuts?
  58. math

    Show how to divide 2 3/4 rectangular candy bars so that the three friends may share them equally. What fractional part of the candy bar will they receive ??
  59. math

    A company's sales revenue decreased by 15% from one operating period to the next. Assuming no change in the prices of its inputs and outputs, by what percentage did: Fixed costs change? Unit variable costs change? Total variable costs change?
  60. Math

    If diameter of iron pipe is 2.8cm and 1mm thickness is melted and cylindrical rod of same length is formed find diameter of rod
  61. calculus

    if a snowball melts so that its surface area decreases at a rate f 1cm^2/min, find the rate at which the diameter decrease when the diameter is 10cm?
  62. Calculus 1

    A spherical snowball melts in such a way that its surface area decreases at a rate of 1 cm2/min. Find the rate at which its diameter is decreasing when the diameter is 10 cm
  63. Physics

    A hydraulic hoist has a ram of 30 cm diameter and a plunger of 1 cm diameter. If 70 N effort is applied to the plunger and the efficiency is 80%, find the maximum load it can raise.
  64. science

    what are the characteristics of a physical change? The substance may change state but it does not change composition.
  65. hydraulic

    a cylinder has a 3" diameter and a 1-7/8" diameter rod with 800psi. what is the force output of the cylinder extending and retracting
  66. physics

    The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n = 1 labels the lowest, or "ground" state, n = 2 is the second state, n = 3 is the third state, and so on.
  67. MATH

    1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14 B.144 C.8 D.12***
  68. Math

    1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14 B.144 C.8 D.12***
  69. Physics

    Can someone help me with this, i have started it but cant get it to work out. The higher the energy level occupied by an electron in the hydrogen atom, the larger the atom. The diameter of the atom is proportional to n2, where n=1 labels the lowest, or
  70. Maths

    An iron pipe of internal diameter 2.8 cm and uniform thickness 1 mm is melted and a solid cylindrical rod of the same length is formed. Find the diameter of the rod.
  71. science

    Compare the light gathering power of a telescope with a 10-centimeter(about 4-inch) diameter mirror to that of the human eye. (Take a diameter of the pupil of the eye to be about 5 millimeters)
  72. Precalculus

    A drinking glass 5 inches tall has a 2.5 inch diameter base. Its sides slope outward at a 4 degree angle. What is the diameter of the top of the glass?
  73. math

    a drinking glass 5 inches tall has a 2.5 inch diameter base. its sides slope upward at a 4 degree angle. what is the diameter of the top of the glass?
  74. Physics

    A flywheel rotates
  75. chemistry

    How to calculate enthalpy change of the following reaction? : S + 2h2o >>> so2 + 2h2 given: s+o2 >>> so2 - enthalpy change = -296.8 kJ h2 + 1/2o2 >> h20 enthalpy change= -285.8kj I was trying to solve it myself but i got confused..
  76. Math

    A bike is in fourth gear. When the pedals turn 3 times, the rear wheel turns 7 times. When the pedals turn twice, how many times does the rear wheel turn?
  77. 7th grade art ms.sue asap please

    1. The ingredients, or building blocks, of an artwork (1 point) studies of art principles of art categories of art elements of art 2. The name of a color (1 point) value intensity hue fue 3. The arrangement of hues in a circular format (1 point) color
  78. Physics

    A 2 kg clay ball traveling left to right at a speed of 6 m/s strikes and sticks to a 10 kg ball at rest. What is the fractional loss of kinetic energy after collision?
  79. Organic Chem

    Is it possible to obtain pure (200- proof) ethanol using fractional distillation from a fermentation mixture that contains equal amounts of water and ethanol? why or why not?
  80. chem

    Use a temperature - composition diagram to explain why fractional distillation of two components is more easil? easily accomplished if the components have boiling points that differ by 20*C or more.
  81. chemistry

    A mixture of 1-butanol and chlorobenzene is heated and the vapours at 115.3 degrees celsius condensed and collected. What is the percent weight composition of this distillate if a careful fractional distillation was performed?
  82. math

    Anna is covering a circular pool with a cover for winter. The pool's diameter is 24 feet. The cover extends 12 inches beyond the edge of the pool, and a rope runs along the edge of the cover to hold it in place. What is the area of the cover? What is the
  83. Physics

    1.(a)When a record player is stopped, the turnabble initially rotating at 33.3rpm,slows down and stops 60s.Calculate the angular acceleration of the turnable.(b)a grinding wheel when turned on,accelerates with an agnular acceleration of 50rad/s^2 . How
  84. Algebra- circles

    On my paper, there's a circle drawn inside of a square, whose side length is 12. I have to find diameter, radius, area, area in terms of pi, ... For the diameter first of all, would it be 12? Or do I have to subtract? Thanks.
  85. Physics

    A hollow spherical iron shell floats almost completely when submerged in water. The outer diameter is 50.0cm, and the density of iron is 7.87g/cm^3. Find the inner diameter.
  86. Math

    let AB and CD be perpendicular diameters of a circle. two chords AE and AF, which lie in the two different semicircles determined by the diameter AB are cut by the diameter CD in the points X and Y respectively. prove that angle EXF = angle EYF
  87. Math-check my answers please :)

    1.Find the length of the hypotenuse of a right triangle with the legs of 9cm and 12cm A.8 B.21 C.15*** D.225 2.The length of a hypotenuse of a right triangle is 13cm. The length of one leg is 5cm. Find the length of the other leg. A.14*** B.144 C.8 D.12
  88. Physics Gravitation Question

    Vesta, a minor planet in the Asteriod Belt between Mars and Jupiter, has a mean radius of 525 km and mass of 2.59 X 10^20 kg. The Dawn Spacecraft (m = 1240 kg) orbited Vesta in 2011 & 2012. A. Find the local acceleration due to gravity at the mean surface
  89. Math

    Find the volume of the cylinder. The formula for the volume is V=Pr^2h but it give a diameter. Does this mean first I divided the diameter by 2?
  90. math

    how do you work out a radius and diameter don't know at all there is a circle with the number 5mm and they want me to tell them what the radius is and the diameter
  91. math

    A garden hose has an outside diameter of 1 1/4 inches. Its inside diameter is 1 inch. How thick is the hose?
  92. Math

    Juan says the diameter of circle with a radius of 8 inches is 4 inches. What is his error? What is the correct diameter?
  93. physics

    two copper wires A and B are of the same length. If the diameter of A is 3 mm and its resistance is 3 ohms, what is the diameter of B if its resistance is 0.08 ohm ?
  94. astonomy

    If 100 asteriods, each of diameter of 100 km, were combined into a single object, approximately what would its diameter be?
  95. Math

    How much more crust does a large pizza with a diameter of 12 inches have than a small pizza with an 8-inch diameter?
  96. Bps science

    When electricity is passed through water hydrogen and Oxygen gas are found change. A change in the state of matter occurs. Is this a chemical or physical change.
  97. PHYSICS

    A 54.0-cm diameter disk rotates with a constant angular acceleration of 2.0 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at this
  98. physics

    A 126 kg student sits on a chair which is solely supported by a solid 0.4 meter-long steel rod 0.81 cm in diameter. To the nearest micron (millionth of a meter), what is the change in length of the rod produced by the student's weight?
  99. science

    During a competition, a 60kg cyclist rides along a horizontal road on a bike with a mass of 5kg. During her ride, she changes gears and uses the chain wheel with a radius of 7.5cm and 36 teeth, and the rear sprocket with 18 teeth. The pedal handle is 20 cm
  100. physics

    A flywheel in the form of a heavy circular disk of diameter 0.83 m and mass 111 kg is mounted on a frictionless bearing. A motor connected to the flywheel accelerates it from rest to 1430 rev/min. a)What is the moment of inertia of the fly- wheel? Answer