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An AC circuit has a voltage source amplitude of 200 V, a resistance of 500 ohms, an inductor of 0.4 mH, and a capacitor of 100 pF.
a. What is the frequency (Hz) that will put the circuit in resonance?
b. What is the reactance for the inductor and the capacitor in resonance?
c. What is the current amplitude in resonance?
A string is wrapped around a disk of mass m = 1.7 kg and radius R = 0.08 m. Starting from rest, you pull the string with a constant force F = 7 N along a nearly frictionless surface. At the instant while the center of the disk has moved a distance..
A charge of -1.0 µC is located at the origin, a second charge of 2.6 µC is located at x = 0, y = 0.1 m, Find the forces that act on each of the three charges
You drive 96km/h east for 29min , then 76km/h north for 46min . Let the +x-axis point east and the +y-axis north. Find your average speed for the entire trip
How many electrons must be removed from each of two 4.4-kg copper spheres to make the electric force of repulsion between them equal in magnitude to the gravitational attraction between them?
The magnetic field of the earth at a certain location is directed vertically downward and has a magnitude of 50.0 µT. FIND magnitude of the magnetic force the field exerts on the proton
A 24 ? resistor is frozen in a 0.50 kg block of ice with its two leads exposed. The resistor is then attached to a 9.0 V battery. how many hours does it take to completely melt the ice
A mass of 35.3kg is attached to a light string that is wrapped around a cylindrical spool of radius 10cm and moment of inertia 4.00 kg*m^2. How long does it take to reach the floor
A uniform plank of length 4.9m and weight 228N rests horizontally on two supports, with 1.10m of the plank hanging over the right support. To what distance x can a person who weighs 449N walk on overhanging part of the plank before it just begins ..
A car initially travelling at 25.90 m/s undergoes a constant negative acceleration of magnitude 1.60 m/s2 after it brakes are applied. How many revolutions does each tire make before the car comes to a stop, assume the car does not skid and the ti..
A Carnot engine operating with an ideal gas takes heat energy from the hot reservoir at 500 degrees C and exhausts heat energy to the cold reservoir at 250 degrees C. If the engine does 400J of work per cycle, what is its efficiency.
A 25.9 g mass is moving in the +x-direction at 56.6 cm/s while a 22.3 g mass is moving in the -x-direction at 41.6 cm/s. Find their velocity (in cm/s) after the collision
Two sinusoidal waves with identical wavelengths and amplitudes travel in opposite directions along a string with a speed of 11 cm/s. what is the wavelength of the waves
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