Physics!

74,730 results, page 40
  1. Physics

    Two organ pipes are imitating a sound of 12 Hz, one of them is 12 m long. What is the length of the other pipe?
  2. physics

    A car accelerates from rest at 2.57 m/s2. What is the velocity at the end of 5.4 s? Answer in units of m/s
  3. physics

    How much time will elapse between seeing lightening and hearing the thunder happening 8000 m from you?
  4. physics

    what is net force acting on the ball after attaning terminal velosity?
  5. physics

    How much time will elapse between seeing lightening and hearing the thunder happening 8000 m from you?
  6. Physics

    explain the input energy and out put energies of two kitchen machines
  7. Physics

    Given 435 in^3 of nitrogen at 1340psi (absolute) at 72.0°F. Find the volume at 1150psi at 45.0°F.
  8. physics

    Find the height from which you would have to drop a ball so that it would have a speed of 6.4 m/s just before it hits the ground.
  9. Physics 221

    How much charge flows through a 12 –V battery when a 2.0 mF capacitor is connected across its terminals?
  10. Physics

    The gravitational force between two electrons that are 0.98 m apart is 5.64 10-71 N. Find the mass of an electron. (Use G = 6.67 10-11 N·m2/kg2.) Do you use F=G(m1*m2)/r^2???
  11. 7th grade Physics

    Give 2 examples of force pairs when you do your homework?
  12. Physics 2

    the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency?
  13. physics

    The gravitational force between two electrons that are 0.98 m apart is 5.64 10-71 N. Find the mass of an electron. (Use G = 6.67 10-11 N·m2/kg2.) Do you use F=G(m1*m2)/r^2???
  14. physics

    a car moving through road what is the direction of force and surface of acting
  15. college physics

    the speed of light is about 3.00 x 10^8 m/s. convert this figure to miles per hour
  16. Physics pls help

    At what depth in water is the pressure equal to 2m atmosphere. Explain how
  17. physics

    find the acceleration of a bicycle slowing fron 3m/s to a stop in 5 seconds?
  18. physics

    A rock is dropped from a 196-m-high cliff. How long does it take to fall (a) the first 98.0 m and (b) the second 98.0 m?
  19. physics

    how to show with the help of a model that resistivity of a conductor increases with increase in temperature?
  20. physics

    Determine the percent error in this approximate value. (There are 365.24 days in one year.)
  21. physics

    explain the input energy and out put energies of two kitchen machines
  22. physics

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

    a boy drops a mango from a tree it falls without rebound what happens to it's momentum
  24. Physics

    How much energy (in cal) is required to raise the temperature of 15.0g of isopropyl alcohol from 10.0 C to 25.0 C?
  25. physics

    A rock is dropped from a 196-m-high cliff. How long does it take to fall (a) the first 98.0 m and (b) the second 98.0 m?
  26. physics

    true or false an object with a mass of 9.0 kg has an acceleration of 3 m/s. the force acting on it is 3n
  27. Physics

    Find the attractive force bet a 50 kg girl and a 60 kg boy, if they stand 2.00 m apart.
  28. physics

    If body is rotating 30r.p.m in clockwise what is angular velocity and it direction
  29. physics

    The x-component of an electric field vector E = (200 N/C, 45 deg) is ___N/C.
  30. physics

    A sports car accelerates from rest to 86km/h\, km/h in 5.2s\, s . What is its average acceleration in m/s2{\rm{m/s}}^2.
  31. physics

    If Zulfiqar fold this colored paper as shown in the image, which cube will he get? A C B D
  32. Physics

    A car speeds up from 12 m/s to 20 m/s in 6.4s.If its mass is 1200 kg,what force must its engine provide ?
  33. Physics

    A 2200. Kg vehicle is traveling at 26 m/s what is the force needed to stop it in 21 seconds?
  34. physics

    two identical objects move with speeds of 5.0 m s and 25.0 m s. What is the ratio of their kinetic energies?
  35. Physics

    a football is kicked in 36 meter per second and 30 degree angle with land.After 1 second,how much it's velocity will ?
  36. physics

    Determine the normal force for a laundry basket with a mass of 4.3 kg in each of the following situations
  37. physics

    TWO R WHEN CONNECTED IN PARALLEL GIVE RESULTANT VALUE BECOMES 9 OHM CALCULATE VALUE OF REESISTIVITY
  38. physics

    how does temperature affect the time it takes to reach thermal equilibrium?
  39. Physics/Cars

    Does the mass of the car matter when driving on the road? When skidding?
  40. physics

    what is the pressure exerted on the ground by a cube which has a weight of 600n and a side of 1m
  41. Physics Classical Mechanics

    Hi Enjoy, Thanks. I got the acceleration right and the Force wrong. Need help on Question 2.
  42. Physics

    Runners in the 100-m dash use starting blocks. Explain what this device does. PLEASE HELP.
  43. Physics

    calculate the magnitude and direction of the resultant of two vectors 5N and 7N inclined at an angle 30° to each other
  44. physics

    what is your age in seconds? this is a conversion problem. someone help please with all the multiplication and division... very confused. THANK YOU
  45. physics

    A carton of juice remains intact even after you have sucked out all the drink from it. please explain
  46. physics

    What is the momentum of a proton travelling at v = 0.95c in the x-direction in the reference frame?
  47. Physics

    Finding of radius of capillary tube without knowing surface tension
  48. physics

    what law is it when gravity pushes down on a rocket that is accelerating at a rate of 270 km/h
  49. AP Physics

    A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant?
  50. Physics

    I've read all my resource materials and looked for outside resources already and i can't find an equation for this. I would appreciate any help
  51. physics

    A bus that is traveling at 31.0 km/h, speeds up at a constant rate of 3.7 m/s2. What velocity does it reach 6.8 s later?
  52. 11th grade Physics

    How many current paths are there in a parallel circuit connection?
  53. physics

    explain the input energy and out put energies of two kitchen machines
  54. physics

    how do you find the magnitude of the net force if you have 2 forces acting on an object: 8.4 N[S] and 7.5 N[E]
  55. physics

    If the electron experiences a force of 5.6 x 10-6 N, how large is the field between the deflection plates?
  56. Physics

    A charge q1=7.8x10^-6 C is placed at the origin. q2=-3.4x10^-6 C is placed at y=-1 m, x=2 m. q3=-9.2x10^-6 C is placed at y=4 m. What is the total force on q1? On q3?
  57. PHYSICS

    TWO FORCES F1 AND F2 ARE ACTING AT RIGHT ANGLE TO EACH OTHER FIND THE EXPRESSION FOR THE RESULTANT FORCE?
  58. physics

    how the frequency of sound produced will change in an aluminium string of 15 cm length
  59. physics

    how do you find the verticle component of velocity of a projectile just as it strikes the ground?
  60. physics ! HELP PLEASE !!!!1

    what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ?
  61. physics

    Explain why voltage doesn't change when connecting resistance in series
  62. physics

    Explain how the pitch of the roaring sound relates to the length of the tube.
  63. physics

    What net force is needed to accelerate a 1.6 × 103kg automobile forward at 2.0 m/s2?
  64. 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?
  65. physics

    can anyone give me a site that "best explains" about Rotational motion/Angular. thanks a lot.. :)
  66. physics

    A meteoroid is speeding through the atmosphere, traveling east at 24.5 km/s while descending at 11.6 km/s. What is its speed, in km/s?
  67. physics

    An electron travels 3.75 m in 6.41 × 10−8 s. How fast does it travel? Answer in units of cm/s
  68. physics

    the air pressure in the tyres of a car increases during driving.Explain.
  69. Physics

    What is the wavelength of visible light emit- ted at 4.2 × 108 MHz?
  70. Physics

    Why is the CM of a 1.00m length of pipe at its midpoint, whereas this is not true for your arm or leg?
  71. Physics (Kinematics Check)

    What is the average velocity of a dropped brick that falls 4.0 m? vi = 4.0 m/s vf = 0 m/s a = 9.81 m/s^2 t = vf-vi / a t = -4/9.81 t = 0.41 s v = d/t v = 4.0/0.41 v = 9.81 m/s^2 <----------
  72. physics

    A dart is thrown horizontally toward X at 30 m/s as shown. It hits Y 0.29 s later. The distance XY in centimeters is:
  73. physics

    a go cart starts at rest and accelerates to 40 m/s in 200m what is the acceleration of the cyclist?
  74. Grade 11 Physics

    Rearrange the equation : d=v2t - 1/2at(squared) to solve for a
  75. physics

    spring has k=82 N/m use a graph to determine the work needed to stretch it from x= 3.8 cm to x=6.2 cm where x is the displacement
  76. PHYSICS

    A hypothetical planet has a mass 1.55 times that of Earth, but the same radius. What is g near its surface?
  77. physics

    At what distance (in m) from a 3.8 mC charge is the electric potential equal to 32 V? (k = 9 x 109 Nm2/C2)
  78. physics

    A bus slows down uniformly from 65.0 km/h to 0 km/h in 20.0 s. How far does it travel before stopping? Answer in units of m
  79. 11th grade Physics

    How many current paths are there in a series circuit connection?
  80. physics

    An object is thrown vertically upward with a speed of 19.1 m/s. How high does it rise?
  81. physics

    a 15 kg bucket is raised to paint a ladder with an acceleration of 3 m/s.^2 what is the tension in the rope?
  82. Physics

    Two resistors 3 Ù and 6 Ù are connected in parallel across a 6 V battery. What is the current flow through the 3 Ù resistor?
  83. Physics

    Would electrons be ejected from aluminum if the incident violet light has a wavelength of 4.00 x 10-7 m?
  84. physics

    A magnetic field is uniform in a region of radius 10 cm, and increasing at 0.02 Tesla/second.
  85. Physics

    An airplane has an airspeed of 100km/h north. if there is a 30km/h headwind what is its groundspeed
  86. Physics sci & eng

    A force of 5.8 N acts on a 16 kg body initially at rest.
  87. physics

    what are the methods of computing the veolicty of a particle in one- dimensona motion from a graph ?
  88. physics

    a cannon fire a .453 kg shell with initial velocity vi=9m/s in the direction 50
  89. physics

    An object is dropped from a height H. During the final second of its fall, it traverses a distance of 57.8 m. What was H?
  90. Physics

    If the gravitational force between the electron (9.11 ✕ 10-31 kg) and the proton (1.67 ✕ 10-27 kg) in a hydrogen atom is 1.06 ✕ 10-47 N, how far apart are the two particles?
  91. PHYSICS

    What is the force of attraction between two masses 5kg and 8kg at a distance of 60cm apart.
  92. Science

    Name 3 physical (physics) occurances that happen within a roller coaster ride?
  93. Gr 9 Science - physics

    If all 3 resistors in a series 12V circuit are the same, what will the voltage be across resistor no. 3?
  94. Physics

    Does angular acceleration on a spinning disk increase centrifugal force?
  95. Physics

    How long is Mayra, a ballerina, in the air when she leaps striaght up with a speed of 1.23 m/s?
  96. Physics

    How long is Mayra, a ballerina, in the air when she leaps straight up with a speed of 1.23 m/s?
  97. physics

    Calulate the amount of substance io 120g of trioxocarbonate (iv)ion,co2
  98. Physics

    A rocket is fired with 9.37 km/hr, find the maximum altitude. (no air resistance)
  99. physics

    why does the filament of a bulb does not melt though it heats more than 3400 degree celcius
  100. physics

    In one dimension ,how does energy depend on size of region if an electron is confined there ??