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The speed of a wave is the frequency multiplied by the wavelength. If a 200Hz sound travels through the following materials, use the given table of speeds of sound to determine the wavelength of sound:
-Air (20C) -Steel -Human Tissue Material Speed (m/s)Air (20C) 344Helium 1,006Water 1,440Human tissue 1,540Aluminum 5,100Granite 4,000Iron and steel 5,200
A 56-? loudspeaker, a 8.9-? loudspeaker, and a 2.3-? loudspeaker are connected in parallel across the terminals of an amplifier. Determine the equivalent resistance of the three speakers
q. two spherical conductors are connected by a long conducting wire and a total charge of 20.0 muc is placed on this
Consider an object that is hot enough to glow violet blue (a peak frequency of 7.5 x 1014 Hz). What is the temperature of this object
The tank is shelling at a target that is 4km away and 60m above ground. what should be the release speed of the shell
A flower pot falls from the roof and passes in front of a window of height h as it falls to the ground to smash to pieces. If the flower pot takes a time T to pass from top to bottom in front of window. Find the (as-yet-unknown) height H from the ..
She is traveling at 9.8 m/s when she hits the water and it takes her 3.1 seconds for her to go down the slide. What is the average net force on the girl?
Mr. DelliGatti decides to go bungee jumping. He goes to the Macau Tower in China and leaps from a height of 233 meters.
0.5m side wooden cube floats on the lake surface with 2/3 of the cube submerged under the water. calculate the minimum work down on the cube that would sink it?
A 8150 kg sailboat is moving through the waters of the Atlantic. Initially, the boat is traveling at 30 mph, 17 degrees East of North. What is the force of the wind acting on the boat
You are required to build a 12 picofarad capacitor. If the plates can be only 2mm apart and circular, what is the radius of each of the plates
Electrons are accelerated towards a television picture tube through a potential difference of 1.80 kV. Compute the energy of an electron when it is about to strike the face of the tube.
In a serious accident, a nuclear power plant%u2019s reactor vessel cracks, and all of the cooling water drains out. how much energy will it take to melt the core
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