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The source of a sound wave has a power of 1.60 µW. Assume it is a point source.
(a) What is the intensity 4.40 m away? (W/m^2)
(b) What is the sound level at that distance? (dB)
A uniform magnetic field of magnitude 1.00 T is directed perpendicular to the plane of a rectangular loop having dimensions 8.1 cm by 10 cm
Two waves have the exact same frequency, wavelength, and amplitude. They are both travelling in the +x direction, What is the phase difference between the two waves.
A volume of 2000 cm^3 of carbon dioxide gas at normal pressure and 20 C is compressed isothermally into a 2 cm^3 container, what is the final pressure inside the container
This problem introduces the concept of tension. The instance is a rope, oriented vertically, that is being pulled from both ends. Let and (with u for up and d for down) represent the magnitude of the forces acting on the top and bottom of the rope..
The pulley system is used to lift a 61 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. The crate is rising with an acceleration of 2.4 m/s2. Assume the masses of the ch..
a ray of light traveling through the air has an angle of incidence of 30 degrees on a block of glass, find speed of light on the block of glass
An electron is moving at a speed of 1.0 x10^4 m/s in a circular path of radius of 2.1cm inside a solenoid. The magnetic field of the solenoid is perpendicular to the plane of the electron's path. The solenoid has 25 turns per centimeter.
A cylindrical iron wire of length 16 m is connected to the terminals of a .3 V battery. What is the diameter of the wire, in mm
A spring of spring constant 11,000N/M is compressed by a block of mass 3kg is released from rest at the top of the incline plane. how far has the block moved down the incline
Force F = (6.0 N) i hat + (-9.0 N) k hat acts on a pebble with position vector r = (0.90 m) j hat + (-0.6 m) k hat, What is the resulting torque acting on the pebble about the origin
A diffraction grating has 3047 lines/cm. Light that contains all wavelengths between 463 and 628 nm shines on the grating. Calculate the width of the dark area
The current in a 100 watt lightbulb is 0.800 A. The filament inside the bulb is 0.220 mm in diameter. What is the current density in the filament
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