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stepan [7]
3 years ago
9

Which word best describes the tone of the poem "Sir Isaac Newton"? A. magical B. mystical C. series D. humorous

Physics
2 answers:
salantis [7]3 years ago
8 0
The answer to this question is b mystical
erma4kov [3.2K]3 years ago
6 0

a. magical i hope it help

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Part complete Sound with frequency 1240 Hz leaves a room through a doorway with a width of 1.11 m . At what minimum angle relati
Sedbober [7]

Answer:

14.43° or 0.25184 rad

Explanation:

v = Speed of sound in air = 343 m/s

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In the case of Fraunhofer diffraction we have the relation

dsin\theta=\lambda\\\Rightarrow \theta=sin^{-1}\frac{\lambda}{d}\\\Rightarrow \theta=sin^{-1}\frac{0.2766}{1.11}\\\Rightarrow \theta=14.43^{\circ}\ or\ 0.25184\ rad

The minimum angle relative to the center line perpendicular to the doorway will someone outside the room hear no sound is 14.43° or 0.25184 rad

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