Math/Physics

214,834 results, page 34

  1. physics

    Distance covered per unit of time is called _________.
  2. Physics

    Could you explain to me how it is possible to run a distance of 1.0 km and have zero displacment.
  3. physics

    what is the speed of light moving through a medium of index of refraction 2.45?
  4. physics

    a spacecraft has an acceleration of magnitudes 5.0g what distance is needed for it to attach a velocity of 10 km/s?
  5. Physics

    the total amount of energy possessed by a body always remains.............
  6. Physics

    for imcomplete cancellation to occur, opposite pulses must have?
  7. Physics

    The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R
  8. Physics

    The problem contains graphics that I don't know how to show other than in an image format: h t t p : / / b i t . l y / c D H P V M h t t p : / / b i t . l y / 9 m b y C R
  9. Physics

    Whatis the volume of a piece of iron (p= 7.9g/ cm cubed) that has a mass of 0.50kg?
  10. physics

    A car brakes, changing from 18 m/s to 6.0 m/s in 3.0 seconds. How far did it travel in this time?
  11. physics

    you drive 2.0 km east and then 1.0 km northeast. What is your total displacement from the starting point?
  12. physics

    A fully loaded 737 aircraft takes off at 250 {\rm km/h}.
  13. physics

    What relationship should be used to solve this situation? 1. x = v − t 2. x =v/t 3. x = vt 4. x = v + t 5. None of these
  14. physics

    a 1500 kg car accelerates from 0 to 25 m/s in 7.0 s. What is the average power delivered to the engine?
  15. physics

    0.24 h to reach the school from your house. velocity of the bus is 19.7 km/h to the east, what is the displacement?
  16. Physics

    A car brakes from 18 m/s to 6.0m/s in 3.0 seconds. How far did it travel in this time? I got 36 m...
  17. physics

    What is the average density of Mars? Mass = 6.42 x1023 kg, radius = 3390 km.
  18. physics- urgent

    an object travels at a rate of 48.5 km/sec. how many cm/min would that be
  19. Physics

    An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
  20. Physics

    An airplane normally flies at 280 km/h. What is its airspeed if it experiences 80 km/hr headwind?
  21. physics

    An object is thrown vertically upward with a speed of 31.8 m/s. How high does it rise?
  22. Physics

    The sum of 5.2713x10^3 + 6.54014x10^3 expressed to 4 significant figures would be?
  23. physics

    An object is thrown vertically upward with a speed of 22.4 m/s. How high does it rise?
  24. physics

    An object is thrown vertically upward with a speed of 22.4 m/s. How high does it rise?
  25. physics

    What force is needed to accelerate a child on a sled (total mass = 65.0 kg) at 1.75 m/s^2
  26. physics

    What capacitance is required to store an energy of 13 kW·h at a potential difference of 940 V?
  27. physics

    if a car was compacted into a cube would the weight change?
  28. physics

    5. What is the acceleration of a 20 N object that is pulled up a 30° incline by a 25 N force? The coefficient of friction is 0.30
  29. physics

    5. What is the acceleration of a 20 N object that is pulled up a 30° incline by a 25 N force? The coefficient of friction is 0.30.
  30. physics

    in what direction should a force be applied to produce maximum torque.?
  31. Physics

    How much work is required to stop an electron (m= 9.11 * 10^-31 kg) which is moving with a speed of 1.80×10^6 m/s?
  32. physics

    would an object weigh more or less if there were no atmosphere on earth
  33. physics

    whats the acceleration of a car traveling 402 meters in 6 seconds
  34. physics

    The rate at which distance changes in a time period is called acceleration
  35. physics

    What angle does the tangent to the curve y(x)=sin^2(x/9)+16sin(x/9) at x=9\pi make with the x-axis?
  36. physics

    is the force exerted by the wall on the person’s hand passive or active?
  37. 7th grade Physics

    Give 2 examples of force pairs when you do your homework?
  38. physics

    How much work will a net force of 56·N west do on the cart as it moves 1·m?
  39. physics

    what's the resulting acceleration when unbalanced force of 98N applied to a 5.1 kg object?
  40. physics (Science)

    If a bee flew 27 centimeters in 10 seconds what would its speed be?
  41. physics

    all electric charges are multiples of the charge on an electron, or atom?
  42. physics

    What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!
  43. physics

    With acceleration of 2500 m/s2, how long will it take to rreach speed of light
  44. physics

    What force is required to accelerate a 90kg bike to 20 m/s in 15 sec? I need to know HOW to do it!
  45. physics

    With acceleration of 2500 m/s2, how long will it take to rreach speed of light
  46. physics

    Calculate the mass of the Earth, if it had a radius of 3000 km and a gravity of 6 m/s^2.
  47. physics bob

    yeah im really confused. is there any way i can pay you to be my tutor
  48. physics

    A car that decreases its speed from 100 km/h to 20 km/h undergoes ______ acceleration.
  49. physics

    express the angular velocity of the second hand on a clock in rev/hr
  50. Physics

    How do you calculate the energy needed to heat 4 kg of water from 25oC to 45oC?
  51. Physics

    A football is thrown at 14.0 m/s at an angle of 35.0 degrees. How far away does it land?
  52. Physics

    How long would it take (in seconds) to travel 1 km at a speed of 100 km/h?
  53. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  54. physics

    A 5 kg block of average density .625 kg/m^3 has a volume of about _____ cu. m
  55. Physics

    You are standing 0.75 m from your bathroom mirror in the morning. How far away is your image from you?
  56. physics

    how long does it take to do 432 joules of work with 75 watts of power?
  57. physics

    if 478 watts of power are used in 14 seconds, how much work was done?
  58. Physics

    A 3.5 kg body accelerates from rest to 20 m/s in 5 s. Calculate: A its acceleration B the force required.
  59. Physics

    Why does tension in a rope increase as the rotational speed of a ball increases?
  60. 11th grade physics

    A car slows down from +32 m/s to +8 m/s in 4s. Calculate the acceleration .
  61. Physics

    The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?
  62. physics

    what happens to the gravitational energy of a firefighter when he slides down the firepoles?
  63. physics

    What force is necessary for a person to hold a 50 kg mass over their head?
  64. physics

    What force is necessary for a person to hold a 50 kg mass over their head?
  65. Physics

    An arrow is shot from a bow at 42 m/s at 70 degrees what is the horizontal and vertical components
  66. physics

    If 53 W of power are exerted and the amount of work done is 7 N-m, how much time did it take?
  67. Physics

    Describe Robert Millikan's experiment and what significant info he learned?
  68. physics

    if you exert a force of 500 N to walk 4 m up a flight of stairs in 4 s, how much
  69. physics

    pls show answers and work with the questions i have posted.
  70. physics

    What is the mass of a marble cylinder with a diameter of .42m and a length of 1.25m?
  71. physics

    if a wooden beam is 30 x 20 x 500 cm. and has a mass of 150 kg. what is the density of the wood
  72. physics

    what is tangential velocity of the earth as it travels in its orbit around the sun?
  73. Physics

    Calculate the volume of a spherical balloon which has a surface area of 0.0793 m2
  74. physics

    Calculate the number density of strontium titanate (SrTiO3), ρ = 5.12 g cm -3
  75. physics

    What is the height of 3.0 meter ladder leans against a wall 37 degree.
  76. Physics

    What are the components of a vector of magnitude 1.5 m at an angle of 35 degrees from the positive x-axis?
  77. Physics

    Show that work done in a wire, E=YAsqr(e)/2l, explainthe symbols. pls help.thanks
  78. Physics

    a sled is capable of reaching speeds of 450 m/s in 1.82 s then stopped in 1.92 s what is the acceleration
  79. Physics

    What is the efficiency of an athlete who consumes 3000kcal of food and does 2.5 x 10*6 J of useful work?
  80. AP Physics B

    What's the equation to find the maximum height after a spring decompresses?
  81. physics

    Suppose that you have a circle with a radius of 4.02 ± 0.39 m, what is the calculated uncertainty in the area?
  82. physics

    Carrying out the following mathematical manipulations: (5.78 +/- 0.04)^2 How do you set this problem up?
  83. Physics

    If a 75-kg skater starts his skate at 8.0m, at his lowest point (height = 0), what is his velocity?
  84. physics

    A car has an acceleration of 16 pc/y2. This value can be CONVERTED into which of the following units?
  85. physics

    what is the kinetic energy of a 200 g bullet travelling at a velocity of 400 m/s?
  86. physics

    how does temperature affect the time it takes to reach thermal equilibrium?
  87. physics

    a car accelerates from 5 m/s to 21 m/s at a rate of 3m/s^2 how far does it travel while accelerating
  88. physics

    there is any peak shift between bulk and nano materials in xrd.
  89. Physics

    Calculate the magnitude of the potential difference between points a and b in the figure if R1=2.36 Ù, R2=4.29 Ù,and R3=10.08 Ù.
  90. Physics

    If the amplitude of a sound wave is quadrupled, by what factor will the intensity increase?
  91. physics

    the kilowatt-hour is a unit of: force, work, power, or time?
  92. Physics

    How many calories are released when 3 grams of 100º C steam turns to 0º C ice
  93. physics

    A mass is attached to a string and then dropped. What is its velocity after 5 sec?
  94. Physics

    How much work is done in accelerating a 2000 kg car from rest to a speed of 30 m/s?
  95. Physics

    A rock is dropped from a height of 2.7 m. How fast is it going when it hits the ground?
  96. PHYSICS

    Determine the equivalent capacitance between A and B for the group of capacitors in the drawing. Let C1 = 12 µF and C2 = 4.0 µF.
  97. physics

    how high does a stone rise if it initially thrown at a rate of 15m/s?
  98. physics

    traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
  99. physics

    traveling at 27.78 m/s with a deceleration rate of 5m/s squared.....How long will it take you to decelerate to 0.
  100. physics

    Three charges, +2.5 µC, -4.3 µC, and -6.0 µC, are located at (-0.20 m, 0.15 m), (0.50 m, -0.35 m), and (-0.42 m, -0.32 m), respectively. What is the electric field at the origin?
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