Math/Physics

215,206 results, page 59

  1. physics PLEASE HELP!

    what are three possible thicknesses that a soap film should be to transmit yellow light ? (Lambda=590nm)
  2. Physics help!!!

    What potential difference is required in an electron microscope to give electrons a wavelength of 0.05 nm ?
  3. Physics

    Does the de Broglie model assert that an electron must be moving in order to have wave properties?
  4. Physics

    What is the tension in a 1-meter string that is spinning a 0.5-kg rock in a horizontal circle 3 times per second?
  5. physics

    what is the force of gravity on a mass of o.5kg hanging by a string in a beaker of water
  6. General Physics I

    What is the spring constant of a 129N object the vibrates at a period of 4.98s?
  7. physics

    A jet travels at 434 m/s. How long does it take to travel 294 m? Answer in units of s
  8. Physics

    What is the typical wavelength of an X-ray ? I searched google and I couldn't find it. If you know the answer I'd appreciate it .
  9. physics

    A car starts from rest and accelerates for 6.1 s with an acceleration of 3.1 m/s2. How far does it travel? Answer in units of m.
  10. Physics

    What is the gravitational force between two runners standing 100 meters apart on a track, if their masses are 60 kg and 75 kg respectively?
  11. physics

    A car starts from rest and accelerates for 2.8 s with an acceleration of 2.1 m/s2. How far does it travel? Answer in units of m
  12. physics

    a pendulum swing with a speed of 1.5 m/s at its lowest point. How high will it rise before it stops
  13. physics

    What type of contamination involves Rags, tie wraps, and safety wire?
  14. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  15. Physics

    Emily rides her horse 48 km in 3 hours.What is her average speed in kilometers per hour?
  16. Physics

    A standing wave has wavenumber 200 rad/m. What is the distance between two adjacent nodes.
  17. physics

    A roller coaster travels 101 ft at an angle of 56.8 above the horizontal. How far does it move horizontally?
  18. Physics

    After undergoing through 90 degree compton scattering, the fraction of energy lost by photon is A) 10 % B) 50 % C) 20 % D) Zero E) None
  19. Physics

    Throw a stone straight up in the air. At its highest height what is its speed? Is it accelerating then?
  20. Physics

    Air in a balloon does 25 J of work while absorbing 81 J of heat. What is the change in internal energy?
  21. physics

    a 10-kg bos slides down a frictionless ramp with acceleration 3.6 m/s calculate the weight anlge? f ?
  22. physics

    if a race cars velocity increases from 4 m/s to 36 m/s over a 4 s time interval, it average acceleration would be 10 m/s2.
  23. physics 8th grade

    If a woman hasa mass of 50 kg calculate her weight in neutons
  24. Physics

    What is the circular force of a 150 g yoyo swung around on a 1.00 m string at a velocity of 5.0 m/s (in Newtons)?
  25. physics

    How might you determine the age of a star from an Earth-based telescope? What measurements might you make?
  26. Physics

    To rearrange the furniture in your room, you need to exert a force of 20 N to push your desk 10 m. How much work do you do?
  27. physics

    An object accelerates uniformly from rest at a rate of 2 m/s2 for 3 s and then 5 m/s2 for 15 s. Find its final velocity?
  28. physics

    a 150g-iron ball at 95 Celsius is dropped into a cavity in a block of ice
  29. physics

    Write down the unit in which reaction rate is measured in this observation? Equation is Zn(s)+I~ZnI
  30. Physics

    An object accelerates uniformly from rest and covers 8m in 2 seconds. What is the distance covered in the third second?
  31. Physics

    What does shifting the phase between the sources in a double slit experiment do to the interference pattern?
  32. physics

    What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s
  33. physics

    If a spring has a constant of 20N/m how much potential energy does it store if it is compressed 2m in joules? <3
  34. Physics

    What is the net force required to accelarate a 2000kg car to 6m/sec us equation F=ma
  35. physics

    What is the kinetic energy of a car of mass 1900 kg moving at a constant speed of 21 m/s
  36. Physics

    if you push a wall with a force of 50N, the work you do is...... (a)500J (b)5000J (c)50J (d)zero
  37. Physics

    What is the significance in the observation of discrete spectral lines in the emission spectrum of hydrogen??
  38. Physics honors

    If a racer runs at an average speed of 7m/a how far will she run in 1 min 45 seconds?
  39. physics

    A 6.2kg piece of metal displaces 0.80 L of water when submerged.Find its density.
  40. Physics

    A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?
  41. physics

    Consider a particle with initial velocity that has magnitude 12.0 m/s and is directed 60.0 degrees above the negative x axis.
  42. Physics

    A 68.5kg man is standing still on an elevator that isn't moving, what is the normal force on him?
  43. Physics

    A 56 kg swimmer jumps off of 15 m tower. Find the swimmers velocity when hitting the water.
  44. Physics

    If an object has a work of 300J and a displacement of 20m, how would I determine the net force?
  45. Physics

    If an object on Pluto has a mass of 10 kg and a weight of 6.6 N, what is the acceleration due to gravity at its location?
  46. Physics

    Find the slope of the line that is tangent to the given function’s graph for the specified value of the independent variable. f(x) = 9x – 8; x=10.
  47. Physics

    A ball travels 200cm in the first 2sec and 220cmin the next 5sec. Find the velocity at 7s
  48. physics

    Find the electric field at the folowing radii from the center of this charge configuration.
  49. Physics

    Find the slope of the line that is tangent to the given function’s graph for the specified value of the independent variable. f(x) = 9x – 8; x=10.
  50. physics

    c) A penny sits 12 cm from the center of a record turning at 33 1/3 rpm. What is the tangential speed in m/s?
  51. Physics

    How much work is required to lift a bag of wheat (mass 50kg) to a height of 2.4m?
  52. Physics

    An object is shot upwards, from the ground, with an initial velocity of 120 m/s. How high will it be after 4.0s?
  53. Physics

    Given that q = +17 mu C and d = 14 cm, find the magnitude of the net electrostatic force exerted on the point charge q2.
  54. physics

    A car moves at a constant speed of 24m/s. How long (in minutes) will it take to travel 15.0 km?
  55. physics

    How center mass affects an arrows distance traveled (include source)
  56. Physics

    What is the smallest a flat mirror can be while still being able to see your full reflection? I need to show my work/explain. Can anyone help me?
  57. Physics

    What are differences and similarities of the electric charges (+ and -) and the magnetic forces (North and South)?
  58. physics

    A standard 1 kilogram weight is a cylinder 48.5 mm in height and 52.0 mm in diameter. What is the density of the material?
  59. Physics

    A car travelled at an average speed of 200km/h. What distance does it cover in 10minutes.
  60. Physics

    At what other angle (other than 45 degrees) could a gun be fired to travel the same horizontal distance Is the answer: There is not one?
  61. physics

    Why is there always a difference between the experimentally calcuated error for resistance, and the actual components tolerance value?
  62. physics

    Can an adult male be rescued from a fall by tying a rope to a car's axle?
  63. Physics

    Find the velocity of a car of mass 1300kg and has kinetic energy of 3800 J.
  64. physics

    If Michael Jordan has a vertical leap of 1.29 m, then what is his takeoff speed and his hang time?
  65. physics

    A drag racer accelerated from 0 to 475km/h in 4.88 s. Assuming a constant acceleration, how far did it travel?
  66. science/physics

    What acceleration will you give to a 25.8 kg box if you push it horizontally with a net force of 89.6 N?
  67. Physics urgent

    What is the weight of a 76 kg astronaut on the Moon where the value of 'g' is only 17% the strength of 'g' on the Earth? (Answer should be expressed in N).
  68. Physics

    A meteoroid is speeding through the atmosphere, traveling east at 14.8 km/s while descending at a rate of 12.5 km/s. What is its speed, in km/s?
  69. Physics

    If you take a bite of pizza, the sauce may burn your mouth while the curst, as the same temperature will not. Explain.
  70. physics

    a body travels 200 cm in the first two second and 220 cm in the next 4 seconds.what will be the velocity at the seventh second from the start.
  71. physics

    YOU PUSH A REFRIGERATOR WIT HA FORCE OF 50N AND IT MOVES 3 METERS ACROSS THE FLOOR
  72. Physics

    What force is required to stop a 1500-kg car in a distance of 0.20 m if it is initially moving at 2.2 m/s?
  73. physics

    if a ball is thrown down at an inital speed of 22 m/s, what will be its position after 2.8 seconds? acceleration is 9.8 m/s squared
  74. physics

    2) The weight of tank is 50 000 kg, area of his tracks is 5 m2. What pressure acts on the ground?
  75. Physics

    An electric fan is rated 240W,25V.Which fuse value is more suitable for the set
  76. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  77. Physics

    A bike starts from rest and accelerates to 20 m/s over a period of 6 seconds. What is the acceleration of the car?
  78. physics

    Why is it better to put ince rather than an equal mass of cold water into a drink you want to chill?
  79. physics

    Why is it better to put ince rather than an equal mass of cold water into a drink you want to chill?
  80. physics

    Find the intensity level 10m from a 0.24 watt source of sound energy?
  81. physics

    A 8.20 cm tall object is placed 30.0 cm in front of a concave mirror with a focal length of 4.20 cm. What is the magnification?
  82. Physics

    A dog is running at 3.0 m/s for 3.6 km. How long did it take him to arrive at his destination? (Give answer in seconds)
  83. physics

    what has no beginning and no end. it is also considered as the medium for light in einstein's theory of relativity
  84. physics

    Henry drives off a 200m high cliff at 132m/s.How far out,how far down,and how far all together did he travel in 2.6seconds
  85. Physics

    Which color light is the result of a greater energy transition, red or blue?
  86. physics

    how much energy would it take to melt 250kg of lead assuming it starts at 30 degrees centigrade.
  87. PHYSICS

    A 30 kg. balloon is filled with 100 m to the third power of helium. how much force is needed to hold it down?
  88. physics

    A car starts from rest and accelerates for 8.7 s with an acceleration of 4.4 m/s 2 . How far does it travel? Answer in units of m.
  89. Physics

    A meteoroid is speeding through the atmosphere, traveling east at 14.8 km/s while descending at a rate of 12.5 km/s. What is its speed, in km/s?
  90. physics

    If you tried to smuggle gold bricks by filling your backpack, whose dimensions are 63 cm*29 cm*20cm, what would its mass be?
  91. physics 101

    A 72.9 kg man is standing on a frictionless ice surface when he throws a 1.6 kg book at 11 m/s.
  92. physics

    how much heat enrgy must be taken in 24 gram of water to reduce the temperature of 7 degrres celcius
  93. physics

    If a car accelerates from rest at a constant 5.5m/s^2, how long will be required to reach 28m/s?
  94. physics

    Calculate the coefficient of kinetic friction for tyre rubber on the road surface.
  95. Physics

    Is there any point along the path of a projectile where its velocity and acceleration vectors are: a) perpendicular to each other? b) parallel to each other?
  96. physics

    So if I have two light bulbs with different wattage how could I show what happens to them in series and parallel. The voltage remains the same.
  97. physics

    What is the gravitational potential energy of a ball with a weight of 72 N when it is sitting on a shelf 1.4 m above the floor?
  98. physics

    2) The weight of tank is 50 000 kg, area of his belts is 5 m2. What pressure acts on the ground?
  99. Physics

    1. Name three different kinds of graphs that are often used to plot information and discuss the value of each. i have no idea what the heck this means
  100. Physics

    A cube of ice weighing 18 grams sublimes into vapor. How many liters of gas will you get?
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