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A cyclotron with a 0.5 T magnetic field is fed a stream of electrons traveling at 500,000 m/s. Find the radius of their circular orbit and their circulating frequency.
A Hall effect sensor 10mm long, 10 microns wide and one micron thick is made of silicon with an electron concentration of 5 * 1012 per cubic centimeter. What is the Hall voltage when exposed to a 0.1T magnetic field and fed a current of 10 microamps.
Two thin, straight parallel wires suspended 10 mm apart are carrying one amp of current in opposite directions. Find the magnitude and direction of the forces between them.
When monochromatic light shines perpendicularly on a soap film(n = 1.33) with air on each side, the second smallest nonzero film thickness for which destructive interference of reflected light is observed is 422 nm. What is the vacuum wavelength of t..
Sam heaves a shot with weight 16-lb straight upward, giving it a constant upward acceleration from rest of 45.7 m/s^2 for a height 65.0 cm. What is the speed of the shot when he releases it
A competitive mini-golf player notices an opponent's ball situated 50cm in front of a wall containing two tunnels. One tunnel leads to the hole, the other to a bunker. The player skill fully putts their ball due East at the opponent's ball with a ..
an object is located 23.0 cm to the left of a diverging lens having a focal length f -30.0 cm. use the correct sign
A piece of thin spherical shell that has a radius of curvature of 90 cm is silvered on both sides. How far was the mirror moved
How much time has elapsed between the two measurements.
If the charge of the point charge in the figure were -2Q (instead of +Q), by what factor would the magnitude of the force on the point charge due to the dipole change.
A 2.50 kg textbook is forced against a horizontal spring of negligible mass and force constant 250 N/m, determine how far the book moves from its initial position before coming to a rest
Gas in a container is at a pressure of 1.5 atm and a volume of 4.0m3. What is the work done on the gas (a)if it expands at constant pressure to twice its initial volume? (b) if it is compressed at constant pressure to one-quarter its initial volum..
Two parallel inducting wires each carry a current of 50A. Theforce per unit length between these wires is equal to the force ofthe gravitational pull on wire 1m long. calculate the distance d between the two parallel wires
When an object of mass m1 is hung on a vertical spring and set into vertical simple harmonic motion, it oscillates at a frequency of 10.7 Hertz. Obtain the ratio m2/m1 of the masses
Vector A has magnitude 16m and vector B has magnitude of 17m. The scalar product A x B is 81m2. What is the magnitude of the vector product between these two vectors
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