Math/Physics

214,834 results, page 22

  1. physics

    A boy walks 13 km in 2.0 h. What is his speed in km/h and m/s. Show work.
  2. physics/measurements

    how do you compute the uncertainty in the volume of a block?
  3. Physics

    What is the speed of a 748N person that expends 2260J of K.E. ?
  4. Physics

    Can mirrors create virtual inverted images?
  5. physics

    Can fruits be used to make a lightaaulb glow?
  6. physics HELP

    which unit is equivalent to meters per second? a. hz*s b. hz*m c. s/hz d. m/hz
  7. physics

    A certain radio wave has a frequency of 2.0 * 10^6 Hz. what is its wavelength?
  8. physics

    what is the symbol for speed and what unit of measurement is used?
  9. physics

    What is the weight on earth of a girl with a mass of 30kg?
  10. Physics

    Calculate g at the midpoint of the earth moon system.
  11. Physics

    An electron has a total energy of 2.8 MeV. What is its momentum?
  12. Physics

    How do you find velocity if time is only given ???
  13. Physics

    why doesn't the light from the headlights of your car cause an interference pattern?
  14. physics

    What is an optical fibre? Briefly describe how they are used.
  15. physics

    differentiate between Emf and Potential difference Pd.
  16. physics

    differentiate between Emf and Potential difference Pd.
  17. physics

    What is a vibration? What is the relationship between period and frequency?
  18. physics

    What branch of science would a biologist belong?
  19. physics

    what does the slope of a position time graph represent?
  20. physics

    How much work is done when 30.0kg crate is lifted 15.0m?
  21. physics

    how does a magnify glass create a virtual image?
  22. Physics

    Describe the mechanism that make rifles recoiless.
  23. physics

    what does the shape of a distance vs. time graph indicate?
  24. Physics

    Why does a gun move backward(recoil) when it is fired?
  25. Physics

    what is the distance if its velocity is 10m/s and the time is 10 seconds
  26. physics

    find the length of a pendulum that oscillates with a frequency of 1.0 Hz
  27. history

    what is the most important contributions of physics to industry
  28. Physics

    I'm not sure how to do the last problem in this pdf: h t t p : / / t i n y u r l . c o m / y 9 q f 4 7 4 Any help would be appreciated. Thank you!
  29. physics

    What is the wavelength of radiation that has a frequency of 6.912 × 1014 s-1?
  30. Physics

    What is the y-component of a 95.3-N force that is exerted at 57.1 degrees to the horizontal?
  31. physics

    how the moons stay in orbit around jupiter ?
  32. Health Physics

    Why is the property of energy so important in nature?
  33. Health Physics

    What must a muscle do in order to work?
  34. physics

    2√2...can someone tell me what that expression means
  35. Physics

    What detector is used to pick up the x-rays in hospitals?
  36. physics

    how do i simplify the equation: v^2=Vo^2+2ax to solve for a? a=acceleration
  37. physics

    A car slows from 22 m/s to 3 m/s with an acceleration of -2.1m/s2. How long does this take?
  38. physics

    How will the weight of 20kg change if it was in a lift that accelerates at 4m/s
  39. PHYSICS

    How can an election be particle and a wave at the same time?
  40. physics

    How many coulombs of positive charge are in 3.8 mol of O2 gas?
  41. physics

    how will the weight of a 20 kg object change if it was in a lift that accelerates at 4 m.s?
  42. Physics

    what is the weight of a 10kg object on the moon if it is 1/6 that of the earth?
  43. physics

    how can a solenoid be used to fire4 small ball?
  44. physics

    what speed will an electron acquire if it has 1800 J of energy?
  45. Physics

    How do you find the phase constant of the oscillation on a graph.
  46. college physics

    What is the heat capacity of 20.0 kg of silver? kcal/K
  47. physics

    What is the energy of a photon that has the same wavelength as a 12-eV electron? (h = 6.63 × 10-34 J×s)
  48. Physics

    What is the proof for voltage versus length in the equation V=Cx?
  49. physics

    in an adiabatic process from A to B, do A and B have same temperature?
  50. physics

    can electric current be generated by magnetic force?
  51. reply to Q " Physics hard... can't get it right"

    kk this is what i did V=strt(3*k=8.31*T=1365)/m=5.32*10^-26
  52. Physics

    What is the speed of an object in circular motion called?
  53. Physics/ Science

    How does a derivation differ from an experiment or a theory?
  54. physics

    How far does a train moving at 800 m/s travel in 80 s?
  55. physics

    hi I need on the formula for average speed or rate thanks
  56. PHYSICS

    The density of a bottle is 100 and its mass is 50.What is its volume
  57. college physics

    As wavelengths decreases, energy _____.
  58. physics

    does the international space station have gravitational pe
  59. AP Physics

    the radius of a circle is 5.5cm, what is the circumference in meters?
  60. Physics

    the work done by the earth in moving round the sun is..................
  61. physics

    what are the values of g,m1,m2,and d if f=g times m1 m2 all over d squared
  62. physics

    How many molecules are in one liter (1000cm^3) of water
  63. Physics II

    A man weighs 0.80 kN on Earth. What is his mass in kilograms?
  64. physics

    Is it true that hot water freezes fast?
  65. physics

    how does the graph of velocity look like when staitionary?
  66. physics

    4) Why must a geostationary satelite be above the equator?
  67. physics

    is this right: velocty is speed in a particular distance.
  68. physics

    how long would it take for the car to go from 0 to 4mi/h
  69. Radiation Physics

    How can I get dose from exposure? Could you provide an example of it? Thank you
  70. physics

    if you pushed 50 newtons up 2 meters what was the length of the ramp
  71. Physics

    How do you find acceleration when given Force and Time?
  72. physics

    what are the better way to calculate the coefficient of friction
  73. 11th grade physics

    calculating the total distance ???
  74. physics nvm bob

    it all makes sense!!!! thanks
  75. physics

    what force will accelerate a 2000-kg. truck at a rate of 0.50
  76. physics

    what is a situation where friction is necessary for motion to occur?
  77. Physics

    How does the eye adjust the focus of an image on the retina?
  78. physics

    Do beams of charged particles contain isotopes ?
  79. Physics

    what propels a rocket away from the surface of the earth?
  80. Physics

    what propels a rocket away from the surface of the earth?
  81. Physics

    Solve the equation. 2 sinx = 0.8. 0< x < 360 degrees
  82. Physics

    find the deceleration of a cyclist reduces from 2.5m/s to 1.0 m/s in 12s?
  83. physics

    what impulse is needed to stop a 45 g mass traveling at 42 m/s?
  84. physics

    Solve for v1. O.500km/v1+3.50km/2v1=0.250h
  85. Physics

    What is the work done in lifting 60 kg of blocks to a height of 20m?
  86. physics

    can someone answer my question that i posted below?
  87. physics

    how much energy does a 200kg have when it's moving at 3 m/s?
  88. physics

    how do you convert 3x10^-3 rad to 10 min of arce
  89. Physics

    Define the focal length of a convex mirror?
  90. Physics

    How can you increase the current flowing in an electric circuit?
  91. physics

    ehich of the following is an example of projectile motion?
  92. Physics

    If the wavelength of the sound wave is 1.3 meters, what is the frequency?
  93. physics

    its a science word to do with forces and its scrambled itsreniat
  94. physics

    To what temperature can you cool the container before it collapses
  95. physics

    a hare can run 100m in 5 seconds what is its speed
  96. physics

    why would you need to divide mass by gravity?
  97. physics

    what are vectors? and how do you us them. for example, i don't understand vector addition.
  98. Physics

    how do you figure out take off speed?
  99. physics

    what is the velocity of a 53.7 kg jogger with a kinetic energy of 1054 J?
  100. physics

    Which type of wave would be beneficial to a surfer?
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