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A uniform electric field of magnitude 339 N/C is directed along the +y-axis. A 5.00 µC charge moves from the origin to the point (x, y) = (-30 cm, -39 cm).
(a) What is the change in the potential energy associated with this charge?
(b) Through what potential difference did the charge move?
A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 9.00 m/s at an angle of 20.0° below the horizontal. Find the height from which the ball was thrown
In the process of changing a flat tire, a motorist uses a hydraulic jack. She begins by applying a force of 41 N to the input piston, determine the force that the output plunger applies to the car
A "torsional pendulum" comprises a uniform vertical quartz fiber attached to the top of a uniform solid sphere of mass m = 2 kg and radius r = 0.1m. what is the angular amplitude of the subsequent motion
A circuit contains a 150-? resistor, a 0.0530-H inductor, a 0.420-?F capacitor, and a source of time-varying emf connected in series. Determine the voltage drop across the inductor
the energy levels of a localized particle are 0 epsilon and 2 epsilon . the middle level is doubly degenerate and the
A 2.0-C charge moves with a velocity of (2.0i + 4.0j + 6.0k) m/s and experiences a magnetic force of (4.0i - 20j + 12k) N. The x component of the magnetic field is equal to zero. Find out the y component of the magnetic field.
The peak value of the ac current in a circuit is 6.0 A, and peak value of the ac voltage applied to the circuit is 4.7 V. What is the average power derived to the circuit?
A block of mass m is attached to a fixed wall by means of a spring whose force constant is k. The block slides on an inclined plane of angle θ. The kinetic friction coefficient between the block and the inclined surface is μ.
Two identical launchers fire projectiles with the same initial velocity. One launcher is 3.54m above the ground and fires horizontally. what is the intial velocity of the projectiles
a roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. a passenger feels
When a battery is connected to a 100-Ω resistor, the current is 4.00 A. When the same battery is connected to a 421-Ω resistor, the current is 1.07 A. Find the emf supplied by the battery and the internal resistance of the battery.
Two boxes with different masses M1 = 1.4 kg and M2 = 2.3 kg are tied together on a frictionless ramp surface which makes an angle ? = 27° with the horizontal, What is the tension in the rope connecting the first box to the ramp
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