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De Broglie postulated that the relationship λ= h/p is valid for relativistic particles. What is the de Broglie wavelength for a (relativistic) electron having a kinetic energy of 3.22 MeV?
Point charges q1=+2.00?C and q2=?2.00?C are placed at adjacent corners of a square for which the length of each side is 4.50cm, What is the electric potential at point b
An inclined plane of angle theta has a spring of for ceconstant k fastened securely at the bottom so that the spring isparallel to the surface. A block of mass m is placed on the planeat distance d from the spring.
A 0.70-kg disk with a rotational inertia given by MR2/2 is free torotate on a fixed horizontal axis suspended from the ceiling. A string is wrapped around thedisk and a 2.0-kg mass hangs from the free end. I
a 50 w light bulb shines through two polarizers. after having passed through the first polarizer the electric field
A proton ,a neutron and an alfa particle ,accelerated through the same potential difference ,enter a region of uniform magnetic field moving at right angles to B.(a) compare their kinetic energies .(b) if the radius of the proton’s circular path is 1..
In a velocity selector, the uniform magnetic field of 1.6 T is produced by a large magnet. What voltage should be applied across the plates
A ball of mass 0.200 kg has a velocity of ; a ball of mass 0.300 kg has a velocity of . They meet in a head-on elastic collision. Proof that the collision was elastic
What is the direction of the current - by changing the magnetic field - center of a conducting wire loop in a horizontal plane with the north end of the magnet toward the loop.
Cyclotrons are sometimes used for carbon-dating by accelerating singly ionized C14 and C12 ions from a sample of material. find the difference in cyclotron frequencies for the two ions
A rectangular loop is 1.2 m wide and 0.80 m tall and carries 0.50 A of current clockwise. Find the net force and torque on the rectangular loop
Only two forces act on an object (mass = 3.30 kg), as in the drawing. (F = 79.0 N.) Find the magnitude and direction (relative to the x axis) of the acceleration of the object
A block weighing 10.82 N rests on a 34° inclined plane. Find the normal force exerted by the plane on the block
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