Diffraction of sound waves is demonstrated when sound waves with a frequency of 1300 hz from a distant source are diffracted through a doorway which is 84 cm wide. calculate the angle between the first two orders of diffraction taking the speed of sound to be 343 m/s.
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Physics, 22.06.2019 05:30
A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?
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Physics, 22.06.2019 14:00
Ascientific blank must be testable and capable of being proven false?
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Physics, 22.06.2019 18:50
An insulated thermos contains 148 g of water at 72.7 ˚c. you put in a 11.7 g ice cube at 0.00 ˚c to form a system of ice + original water. the specific heat of liquid water is 4190 j/kg•k; and the heat of fusion of water is 333 kj/kg. what is the net entropy change of the system from then until the system reaches the final (equilibrium) temperature?
Answers: 2
Diffraction of sound waves is demonstrated when sound waves with a frequency of 1300 hz from a dista...
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