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- please help me with this problem. ASAP! show complete and explicit solution. do not skip any mathematical stepI gave you a multiple choice question and you gave me an answer that wasn't even there...If a sound with frequency fs is produced by a source traveling along a line with speed vs. If an observer is traveling with speed v along the same line from the opposite direction toward the source, then the frequency of the sound heard by the observer is 6-(C+₂)6 fo where c is the speed of sound, about 332 m/s. (This is the Doppler effect.) Suppose that, at a particular moment, you are in a train traveling at 42 m/s and accelerating at 1.6 m/s². A train is approaching you from the opposite direction on the other track at 47 m/s, accelerating at 1.7 m/s², and sounds its whistle, which has a frequency of 438 Hz. At that instant, what is the perceived frequency that you hear? (Round your answer to one decimal place.) 580.7 X Hz How fast is it changing? (Round your answer to two decimal places.) X Hz/s 5.90
- A UFO travels at such a speed as to remain above one point on the earth ata height of 200 km above the earth's surface. A radio signal of frequency 110:0 MHz is sent to the UFO. i.What is the shift in the frequency received by the UFO? ii. If the signal was reflected back to earth, what would be the observed frequency of the return signal?In the deep space between galaxies, the number density of atoms is as low as 106 atoms/m3, and the temperature is a frigid 2.7 K. part (a) What is the pressure, in pascals, in the region between galaxies? part (b) What volume, in cubic meters, is occupied by 3.5 mol of gas? Part (c) If this volume is a cube, what is the length of one of its edges, in kilometers?Ggg