Physics, 25.11.2019 22:31, josephcarriveau
Sound with frequency 1300 hz leaves a room through a doorway with a width of 1.10 m . at what minimum angle relative to the centerline perpendicular to the doorway will someone outside the room hear no sound? use 344 m/s for the speed of sound in air and assume that the source and listener are both far enough from the doorway for fraunhofer diffraction to apply. you can ignore effects of reflections.
Answers: 2
Physics, 22.06.2019 12:00, angelamirga332
Asolid round steel rod 6.25 mm in diameter and 375 mm long is rigidly bonded to the end of solid square brass rod 25 mm on a side and 300 mm long. the geometric axes of the bare are along the same line. an axial tensile force of 5.4 kn is applied at the extreme ends of the assembly. for steel e = 200 gpa and for brass e = 90 gpa. determine the total elongation for the assembly.
Answers: 1
Physics, 22.06.2019 17:30, etaylor3421
Frequency of electromagnetic waves that a radio station is assigned is called
Answers: 1
Sound with frequency 1300 hz leaves a room through a doorway with a width of 1.10 m . at what minimu...