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In diffraction experiment, if the distance between slit and screen Equals Ten thousand times the distance between central fringe to first fringe. Then find the wavelength of laser wave that diffracted on slit with width 6 mm.
What is gausss law
Are there any locations in the United States where a magnetic compass will point to the geographic north pole?
How can you magnetize an iron bar of the Earth is the only magnetic around?
Are there any locations in the United States where a magnetic compass will point to the geographic north pole?
Three point charges are arranged along the y-axis in a vacuum. The topmost charge bears a charge of -4.0 µC, the middle charge has a charge of +3.0 µC, and the bottom one carries a -7.0 µC charge. What is the magnitude and direction of the net electrostatic force that the middle charge experiences?
An electron (m = 9.11 x 10-31kg, q = 1.60 x 10-19C) at rest is accelerated through an electric potential difference of 12.0 V. It then enters a uniform magnetic field of 0.100 T [up], when initially moving [N].
a) Find the initial speed of the electron entering the magnetic field.
b) Find the magnetic force on the electron entering the magnetic field.
c) Find the radius of the circular path of the electron in the field.
Two stationary frictionless pucks are placed on a level surface at an initial distance of 3.0m. The mass of puck 1 is 0.55kg and it has a charge of
+5.0 x 10-4C,
while puck 2 has a mass of 0.25kg and a charge of +3.5 x 10-4C. Find the velocity of each puck after they have moved very far apart.
The radius of the earth s 6.38 x 106m. If a satellite is in orbit around the earth at an altitude of 1500km, what is the speed of the satellite?
Mass 1 is five times as large as mass 2. Both masses area at rest and are separated by 150 m.
Where could you place a third mass, mass 3, if the net force on mass 3 must be zero?
