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The energy difference between parallel and antiparallel alignments of the z component of an electron's spin magnetic dipole moment with an external magnetic field B directed along the z component is 6.7 x 10-25 J. What is the magnitude of B?
Find an equation for the change in wavelength of a scattered photon by Compton effect.
A cylinder contains a mixture of helium and argon gas in equilibrium at a temperature of 145°C. What is the rms speed of each type of molecule
A 821 kg car is going 29 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads and rotors
The electrons in the beam of a television tube have a kineticenergy of 2.04 x 10-15 J. Initially, the electrons movehorizontally from west to east. The vertical component of theearth's magnetic field points down, toward the surface of theearth, an..
a wire loop of dimensions L = 50.0 cm and W = 30.0 cm lies in a magnetic field . If = (3.00 10-2 T/m)y : What is the direction of the emf induced in the loop
question what is the acceleration of a 5.0 kg object acted on by a resultant force of 35.0 n? what is the acceleration
The rotor in a certain electric motor is a flat, rectangular coil with 84 turns of wire and dimensions 2.45 cm by 4.04 cm. The rotor rotates in a uniform magnetic field of 0.800 T. Find the peak power output of the motor
A house has a volume of 450 m3. The air-conditioning system is designed to replace the air in the house every hour, The air in the ducts flows at 5.0 m/s, find the width of the ducts
a rock is tossed straight up with a speed of 27 ms. when it returns it falls into a hole 15 m deep.part a what is the
A rod of length 30.0 cm has linear density (mass per length) given by: ?= 50.0 + 20.0x. What is the mass of the rod
A pitcher throws a curveball that reaches the catcher in 0.55s. The ball curves because it is spinning at an average angular velocity of 280rev/min (assumed constant) on its way to catcher's mitt.
A parallel-plate capacitor has 1.85 cm2 plates that are separated by 5.72 mm with air between them. how much energy does it store
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