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Two tuning forks oscillating coherently and in phase at 12000Hz are separated by 0.35m.
a) Calculate the angles of maximum intensity on a circular wall 10m radius and centered on the forks.(angles should extend over the full range 0-360 degrees.)
b) Calculate the angles of minimum intensity.
c) What is the phase angle difference between the waves at 40 degrees lab angle?
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm, Calculate the electric field between the plates and Calculate the capacitance
On a typical mission, the Space Shuttle (m = 2.00 106 kg) orbits at an altitude of 250 km above the Earth's surface. Find the speed of the shuttle in its orbit.
What is the value of a current in the smaller loop that would result in zero total magnetic fields at the center of the two loop system.
A girl is standing at the edge of the cliff 271 m above the ground. She reaches out over the edge of the cliff and throws a rock straight upward with a speed of 6.17 m/s. a) how long does it take the rock to hit ground? b) What is the speed of the ro..
If an electric wire is allowed to produce a magnetic field no larger than that of the Earth .45E-4 T at a distance of 27 cm
A tsunami is generated by an earthquake off the coast of Alaska. It has a wavelength of 677 km. It travels at a distance of 3536 km in a period of 5.49 hr. What is the frequency of the wave in Hz?
Mutual induction can be used as the basis for a metal detector. A typical setup uses two large coils that are parallel to each other , find the new value of the induced emf
A kayaker needs to paddle north across an 85 m wide harbor. The tide is going out, creating a tidal current that flows to the east at 1.7 m/s. The kayaker can paddle with the speed of 3.0 m/s.
The loaded cab of an elevator has a mass of 3000kg and moves 216-m up the shaft in 23s at constant speed. At what average rate does the force from the cable do work on cab.
Suppose a single electron orbits about a nucleus containing two protons (+2e), find the magnitude of the electron's centripetal acceleration
A ball is thrown toward a cliff of height h with a speed of 30m/s and an angle of 60? above horizontal, What was the maximum height of the ball
The manufacturers of a particular brand of car conduct head-on collision tests and find that in the absence of a passenger side air bag, What is the average force exerted on the childs head during collision
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