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help with quick physics question?!?
1) How long would it take a plane flying at Mach 2 (at STP) to travel 180 km?
2) There i a concert hall and the total length from the stage to the back of the hall is 80 m. What time difference will occur between those listening in the front near the stage and the seats in back at 20 degrees celsius?
*please show all work and equations used*
1 Answer
- 8 years agoFavorite Answer
Considering speed of sound to be 331 m/s at STP (0 degree celsius)
1. Mach 2 means twice the speed of sound ie 331*2 = 662m/s
Distance = 180 km = 180000 m
Speed = 662m/s
Speed = Distance / Time
Time = Distance / Speed
Time = 180000 / 662
Time = 271. 903 s = 4.531 minutes
2. Considering speed of sound to be 343 m/s at 20 degree celsius (NTP)
Distance = 80m
Speed = 343 m/s
Time = Distance / Speed
Time = 80 / 343
Time = 0.2332 s
Source(s): Myself. Hope this helped. Have fun. (:
