Physics, 07.10.2019 22:30 xsanexensprocke7341
Two loudspeakers in a 20c room emit 686 hz sound waves along the x-axis. a. if the speakers are in phase, what is the smallest distance between the speakers for which the interference of the sound waves is perfectly destructive? b. if the speakers are out of phase, what is the smallest distance between the speakers for which the interference of the sound waves is maximum constructive?
Answers: 2
Physics, 22.06.2019 08:30
Abike rider starts from rest and accelerates 28.0 meters down a slope in 5.00 seconds. what is her acceleration? select one: a. 3.21 m/sec2 b. 1.75 m/sec2 c. 9.80 m/sec2 d. 2.24 m/sec2
Answers: 3
Physics, 22.06.2019 10:10
Henry, whose mass is 95 kg, stands on a bathroom scale in an elevator. the scale reads 830 n for the first 2.4 s after the elevator starts moving, then 930 n for the next 2.4 s. part a what is the elevator's speed 4.8 s after starting? express your answer with the appropriate units.
Answers: 2
Physics, 22.06.2019 16:40
The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .
Answers: 3
Two loudspeakers in a 20c room emit 686 hz sound waves along the x-axis. a. if the speakers are in p...
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