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A beam of electrons is accelerated through a potential difference of 10 kV before entering a velocity selector. If the B-field of the velocity selector is perpendicular to the velocity and has a value of 0.05 T, find what value of the Electric field is required (in the magnetic field region) if the particles are to be undefeated?
V/m
If the pressure of the 1.2-cm3 volume is reduced to 1.2 × 10?11 Pa (an extremely good vacuum) while the temperature remains constant, how many moles of gas remain in the container
Draw a free body diagram for each block in the system. Find the acceleration of the system and the tensions in the ropes. Coefficient of kinetic friction of 0.3 exists between the two blocks with no other frictional surfaces.
The displacement of a wave traveling in the positive x-direction is D(x,t)=(3.5cm)sin(3.2x-132t), where x is in m and t is in s . Part A What is the frequency of this wave? Part B What is the wavelength of this wave? Part C What is the speed of this ..
In what direction should the plane head in order to fly.
Calculate the fast neutron flux needed to produce the same injury as 0.50 mSv/hr of thermal neutrons, and then, as 6,000 thermal neutrons per sq. cm per sec.
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston. Neglect any height difference between the plunger and the piston. ..
A player kicks a football, giving it an initial velocity of 12 m/s W, at an angle of 40 degrees up from the horizontal. A second player, standing 28 m west of the kicker, immediately starts running to meet the ball. With what velocity must the seond ..
Transverse waves on a string have wave speed v=8m/s , amplitude A=0.0700 m , and wavelength lambda= 0.320 m . The waves travel in the -x direction, and at t = 0 the x = 0 end of the string has its maximum upward displacement.
A 4 gram bullet is moving horizontally with a velocity of +355 m/s, where the + sign indicates that is moving to the right. Find the ration of the total kinetic energy after the collision to the total kinetic energy before the collision
One cubic meter (1.00 m3) of aluminum has a mass of 2.70 103 kg, and the same volume of iron has a mass of 7.86 103 kg. Find the radius of a solid aluminum sphere
a 11 cm long metal rod pulled along two frictionless conducting rails at a constant speed of 1.7 ms. the rails have
Suppose that you have a 390 ?, a 780 ?, and a 2.20 k? resistor. What is the maximum resistance you can obtain by combining these
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