Physics, 07.08.2019 04:20 xgibson123
Awireless transmitting microphone is mounted on a small platform that can roll down an incline, directly away from a loudspeaker that is mounted at the top of the incline. the loudspeaker broadcasts a tone that has a frequency of 1.000 × 104 hz, and the speed of sound is 343 m/s. at a time of 1.5 s following the release of the platform, the microphone detects a frequency of 9952 hz. at a time of 3.5 s following the release of the platform, the microphone detects a frequency of 9888 hz. what is the acceleration a (assumed constant) of the platform
Answers: 3
Physics, 22.06.2019 05:10
A26 cm object is 18 cm in front of a plane mirror. a ray of light strikes the object and is reflected off the mirror at a 42-degree angle. what is the angle of reflection? degrees what type of image is formed? what is the size of the image? cm
Answers: 2
Physics, 22.06.2019 17:10
Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up
Answers: 2
Physics, 22.06.2019 23:00
Amother used 150 watts of power to raise a 15 newton object in a time interval of 8.0 seconds. through what vertical distance was the object raised ?
Answers: 1
Awireless transmitting microphone is mounted on a small platform that can roll down an incline, dire...
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