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The distance between a loudspeaker and the left ear of a listener is 2.70 m.
a.) How long would it take for sound to travel this distance if the air temperature is 20 degrees C.
b.) Assuming that the sound frequency is 523 Hz, how many wavelengths of sound are contained in this distance?
At the equator, the earth's magnetic field is approximately horizontal and is directed toward the north and has a value of 8 * 10^-5 T. What is the emf if the bullet travels south
The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires a gun, she is driven back over the edge and into the sea. Assume its velocity is +693m/s and the mass of a bullet is 0.0281 kg. H..
The normal airflow over the Rocky Mountains is west to east. The air loses much of its moisture content and is chilled as it climbs the western side of the mountains. What is its temperature at the end of the descent
A sinusoidal voltage Δv = (100 V) sin (160t) is applied to a series RLC circuit with L =50 mH, C = 100 μF, and R = 38 Ω. What is the impedance of the circuit? What is the maximum current in the circuit?
A TV remote control emits IR light. If the detector on the TV set is not to react to visible light, What is the shortest-wavelength light that can strike silicon without causing electrons to jump from the valence band to the conduction band
Violet light and red light travel through air and strike a block of plastic at the same angle of incidence. find the index of refraction for violet light in plastic
A person weighs 695 {\rm N} in air however only 495 {\rm N} when standing in water up to the hips. Discover the volume of each of the person's legs (in m3)
a 1.000 meter long rod (measured when stationary) is moving at 0.8 c. How long would the rod appear to a stationary observer
Water is pumped into a storage tank from a well delivering 19.0 gallons of water in 26.0 seconds through a pipe of 1.00 in.2 cross-sectional area. What is the average velocity of the water in the pipe as the water is pumped from the well?
A 2.00 kg hoop with a radius of 0.0750 m was placed at the top of a3.00 m long ramp. The top of the ramp was 0.800 m above the lower end of the ramp. The hoop rolled down the ramp. Compute hoops angular velocity
Two insulated wires, each 2.90 m long,are taped together to form a two-wire unit that is 2.90 m long. One wire carries a current of 7.00 A;the other carries a smaller current I in the opposite direction. The two wire unit is placed at angle of 51...
Two lenses were 10 cm apart. An object was 30 cm from the first converging lens. The second diverging lens has a focal length of 8 cm. Find the focal length of the first converging lens
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