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Question: "Concert A" is a pure sinusoidal wave having a frequency of 440Hz. The speed of sound in air at room temperature is about 340m/s. How far apart are the pressure maxima in the sound wave? The pressure minima? What is the period of the wave?
An accelerating voltage of 2.59 103 V is applied to an electron gun, What is the magnitude of the deflection on the screen caused by the vertical component of the Earth's magnetic field, taken as 20.0 µT down
use the biot savart to compute the magnetic field at the center of a matalic ring. the ring has a radius of 10^-6 m, compute the magnetic field at the center of the ring
A small galvanometer coil of resistance R = 20 ? and full-scale deflection at 1 mA is connected in series with a 4980 ? resistance to build an analog voltmeter
What effect does temperature have upon surface tension? Is it better to wash clothes in hot water or cold water?
A student stands at the edge of a cliff and throws a stone horizontally over the edge with a speed of 21.0 m/s. How long after being released does the stone strike the beach below the cliff
A 116 kg chesterfield is pushed up a frictionless ramp at the constant speed by a delivery person. If the ramp is inclined at 25.80° to horizontal. What is the magnitude of the normal force that is exerted on the chesterfield by the ramp.
Assume you start with the pendulum again at H. 46.6 o with respect to the vertical, but rather than releasing it from rest, you give it a push downward. It swings to the other side, and reaches a maximum angle of I. 66.6o with respect to the verti..
A proton orbits a long charged wire, making 5.66 *106 revolutions per second. What is the wire's linear charge density
An athlete crosses a 28 m-wide river by swimming perpendicular to the water current at a speed of 0.8 m/s relative to the water, How fast is the water in the river flowing with respect to the ground in m/s
Two narrow slits are illuminated by a laser with a wavelength of 549nm. The interference pattern on a screen located x = 4.50m away , Calculate the distance between the two slits
In a machine shop,a hydraulic lift is used to raise heavy equipment forrepairs. What force must be applied to the small piston inorder to lift the engine in units of N
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 32.5 dB. What is the intensity delivered to the eardrum
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