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An LRC series circuit with R = 100 Omega, L = 56mH, and C =1.7 muF is powered by an ac voltage source of peak voltage V0 = 210 V, Determine the phase angle of the source voltage relative to th
A midle C note (262 Hz) is sounded on a piano to help tune a violin string. When the string is sounded, nine beats are heard in 3.0s. How much is the violin string off tune?
Two forces, of magnitude F1 = 80.0 N and F2 = 45.0 N, act in opposite directions on a block which sits atop a frictionless surface. Find the work W1 done on the block by the force of magnitude F1= 80
You blow some more, and the film detaches to form a complete spherical bubble of radius 3.46 cm, which floats off the wand. What is the net flux through the bubble
A piece of thin spherical shell that has a radius of curvature of 90 cm is silvered on both sides. How far was the mirror moved
A 51.0cm -long solenoid 1.35 cm in diameter is to produce a field of 0.335mT at its center. How much current should the solenoid carry
A circular coil of 50 loops and a diameter 20.0 cm is lying flat on a tabletop, and carries a clockwise current of 2.50 A. A magnetic field of 0.450 T, What is the torque on the coil
A man whose mass is 80kg on the earth's surface is in a spacecraft at a height of 2 Earth radii above the earth's surface. At that height what is the acceleration due to gravity
a very long, straight solenoid witha cross-sectional area of 6.25cm^2 is would with 44 turns of wire per centimeter, What is the average inducted emf in the secondary coil
A piano tuner stretches a steel piano wire with a tension of 964N. What is the frequency of its fundamental mode of vibration
Three long parallel wires are 3.8cm from one another. Determine the magnitude and direction of the magnetic field at the midpoint of the side of the triangle between wire M and wire N
Suppose this rod can expand in sections like an umbrella shaft. Calculate the final angular speed if it expands in a totaly length of 2.0 m while rotating, assuming its angular momentum is conserved
The wheel weighs 70 kg, and is 120 cm in diameter. you mount the wheel by its central axis, What is the angular velocity of the wheel at the end of the fall
Starting from rest a wheel accelerates at a rate of 9.2 rad/s^2 for 5.61 s. Calculate the number of revolutions it makes in this time
Calculate the net impulse delivered to a 138-kg quarterback initally running at 4.5 m/s if he's hit by a defending player and slowed to a speed of 1.1 m/s
We all sound like great singers in the shower, due to standing waves. What are the wavelengths of the first two overtones for this shower
You are trying to overhear a juicy conversation, but from your distance of 16.0m , How close should you come
A roller coaster is riding along the rails at an amusement park. Explain why the normal force the track exerts on the coaster does zero work on it
To examine a particular blood sample in biology lab, a student uses a compound microscope set to have a magnification of -4530. What is the distance between the blood sample and the objective lens
An object is a distance 6f from a converging lens. construct a ray diagram showing the location and orientation of the image
An inductor has inductance of 0.240H and carries a current that is decreasing at a uniform rate of 19.0mA/s. Find the self-induced emf in this inductor
A commonly used method of fastening one part to another part is called "shrink fitting." By how many Celsius degrees should the rod be cooled
What is the rms current in a series RC circuit if R = 5.0k%u03A9 , C = 0.90%u03BCF , and the rms applied voltage is 130V at 69Hz
Consider two planets in space that gravitationally attract each other. If the mass of one planet is increased six-fold, then the force between them changes by what factor
Sirius is a binary star (two stars orbiting their center of gravity) they are separated by 2 light hours, What diameter aperture must we use in the telescope to resolve the red light(700 nm) from the