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A block of mass 50 kg is free to slide on a horizontal frictionless surface. A constant force F acting 20° above the horizontal is applied to the block. As a result, the block has a horizontal acceleration of 4 meters-per-second squared. What is the magnitude of the applied force F?
An proton (m = 1.67 ´ 10-27 kg and q = 1.6 ´ 10-19 C) travelling at 2.7 × 105 ms-1 enters a magnetic field of 1.2 T at right angles to the direction of motion of the electron. What is the centripetal force on proton.
A ball is thrown so that its initial vertical and horizontal components of velocity are 50 m/s and 15 m/s, Estimate the maximum height the ball reaches
In a RLC circuit, the rms current is 7.00 A, the maximum voltage 230. V and the current lags behind the voltage by 53.0 degrees. Find the average power dissipated in the circuit
A 2.0-nF parallel plate capacitor with a sheet of mylar (k = 3.1) filling the space between the plates is connected to a 90 V battery. Determine the change in the charge on one of the plates
Two waves with identical frequency but different amplitudes A1 = 6.0 cm and A2 = 3.0 cm, What is its amplitude if they interfere destructively
A 1.05 kg mass is attached to a light cord that is wrapped around a pulley of radius 2.65 cm, which turns with negligible friction. Find the moment of inertia of the pulley
The velocity of a boat with respect to the shore is 2 meters/second. The velocity of the water with respect to the shore is 1 meter/second. What is the distance traveled by boat after 3 minutes if the boat is traveling in the opposite direction of..
Two masses of 4.00 kg each, connected by a string, slide down a ramp making an angle of 45° with the horizontal. Find the magnitude of the acceleration of the masses
A cord connected at one end to a block which can slide on an inclined plane has its other end wrapped around a cylinder resting in a depression at the top of the plane . Determine the speed of the block after it has traveled 1.80 along the plane, ..
A hydrogen atom at rest in the laboratory emits the Paschen ? radiation. Compute the recoil kinetic energy of the atom
When the temperature of a coin is raised by 71.8 C°, the coin's diameter increases by 2.11 x 10-5 m. find the coefficient of linear expansion
An uncharged capacitor and a resistor are connected in series to a source of emf. If emf = 6.00 V, C = 16.0 µF, and R = 100 ?, find the maximum charge on the capacitor
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