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Do sound waves exhibit diffraction effects? If so, determine the "slit" width that would diffract an audible sound wave (frequency between 20 Hz and 20 kHz). Would a doorway work or do you need a different sized opening?
A 12 kg- hammer strikes a nail at a velocity of 8.5m/s and comes to rest in a time interval of 7.7 m/s. What is the average force acting on the nail
Three resistors, 27, 49, and 79 , are connected in series, and a 0.55 A current passes through them. What is the potential difference across the three resistors
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
A 0.25 kg block attached to a spring of spring constant 36.5 N/m is oscillating on a horizontal frictionless surface as shown. What is the amplitude of the motion of the block
An object is placed 24.5 cm to the left of a thin converging lens that has focal length +12.1 cm. What is the distance between the object and the image
A listener increases his distance from a sound source by a factor of 3.05, what is the change in the sound intensity level in dB
A proton moves in a circular path perpendicular to a 1.19 T magnetic field. Calculate the energy of the proton in eV
An iguana that is slowing down at a uniform rate of acceleration while moving in positive direction.
You wind a small paper tube uniformly with 173 turns of thin wire to form a solenoid. What is the inductance, in microhenries, of your solenoid
You are testing a new amusement park roller coaster with an empty car with mass 123 kg. One part of the track is a vertical loop with radius 11.1 m, how much work is done by the friction
A 0.150 T magnetic field B crosses the xy plane perpendicular to the x axis and at an angle of 70.0° to the y axis. What is the total magnetic flux through the surface
1.7 kilograms of water are changed from ice at 0?C into liquid water at 0?C, determine the change in mass of the water
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