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You are holding a compass 3.50 m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. Instead of orienting to any consistent "north" direction, the compass needle swings aimlessly no matter how you tilt or shake the instrument. The strength of the Earth's magnetic field at your location is 5.12×10?5 T. What is the magnitude of the current carried by the wire?
What is the highest value of the magnetic force.
Suppose that 3.00 g of hydrogen is separated into electrons and protons. What is the resulting compressional force on the Earth
The small spherical planet called "Glob" has a mass of 6.06×1018 kg and a radius of 5.84×104 m. What was the initial speed of the rock as it left the astronaut's hand? (Glob has no atmosphere, so no energy is lost to air friction
A 111 gram apple falls from a branch that is 3.5 meters above the ground, How much time elapses before the apple hits the ground
A single loop of wire is lying in the plane of a paper, What will be the direction of the induced current flowing in the loop
One particle has a mass of 4.41 x 10-3 kg and a charge of +6.92 ?C. A second particle has a mass of 6.52 x 10-3 kg and the same charge. The two particles are initially held in place and then released.
What is the relationship between the light emitted by an atom and the energies of the electrons in the atom?
The nonconservative wind and lift forces take the balloon up, doing +9.70 104 J of work on the balloon in the process. Illustrate at what height above the surface of the earth does the balloon have a speed of 7.20 m/s?
A block of mass m = 600 g is released from rest and slides down a frictionless track of height h = 59.9 cm. What is the value of the spring constant k
A 1.00x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P, so that the net work done by it and the k..
Would a plucked guitar sting vibrate for a longer time or a shorter time if the instrument had no sounding board? explain.
In NYU's Diffraction and interference lab for general physics 2, what are the widths given on the slide with the double slits. On the lab manual it says they were given on the slide.
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