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An electron moves with a speed of 8.0 x 106 m/s along the +x-axis. It enters a region where there is a magnetic field of 2.5 T, directed at an angle of 60o to the +x-axis and lying in the xy-plane. (1 eV = 1.60 x 10-19 C, mel = 9.11 x 10-31 kg) Calculate the magnitude of the magnetic force on the electron.
a circuits consists of a resistor and a capacitor in series with an ac source that supplies an rms voltage of 240 v. at
A square coil of wire with 17 turns is in a magnetic field of 0.11 T. Find the area of one turn if the field is perpendicular to the plane of the coil
a 741 kg stopped at a intersection is rear ended by a 1580kg truck moving at 17.5 m/s. Find final speeds of both vehicles
A 10 m beam of mass 330 kg extends over a ledge. The beam is not attached, but simply rests on surface. A 53 kg student intends to position the beam so that he can walk to the end of it. How far from the edge of the ledge can the beam extend.
a 2.00 kg projectile is fired at an angle of 20.0deg above the horizontal. what is the magnitude of the net force
An RC circuit with C = 38.8 µF and R = 6.5 has a 27 V source in it. With the capacitor initially uncharged, an open switch in the circuit is closed. What is the voltage across the capacitor at that time
A student wants to determine the coefficients of static frictionand kinetic friction between a box and a plank. What is the coefficient of kinetic friction
A small object with mass 0.200 kg moves with constant speed in a vertical circle of radius 0.500 m. It takes the object 0.400 s to complete one revolution. What is the translational speed of the object
A 245 kg person lays on board that is supported only on the ends and that has a mass of 12.0 kg. what is the force on either side where the board is supported
A 0.45 kilogram object connected to a light spring with a force constant of 19.6 N/m oscillates on a frictionless horizontal surface. Compute the speed of the object when the spring is compressed 1.5 centimeter
A uniform magnetic field (0.20 T) is directed 35 degrees above the horizontal, penetrating a horizontal circular coil (radius 6.0 cm)
a physics book slides off a horizontal tabletop with a speed of 1.10 . it strikes the floor in 0.350 . ignore air
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