Michelle is going to vacation in a location on the globe that is currently experiencing summer and daylight. According the model
below, which location could Michelle be visiting? Location A - Axis Sun Location C Location B Equator Location D A) Location A B) Location B ) Location ( D) Location D
1 answer:
You might be interested in
Answer:
Pi(3.14) radians or 180º degrees
Explanation:
First of all, we need to obtain the wavelength of a wave traveling to the speed of sound and 420 Hz of frequency.
The formula is:
where l = wavelength in meters
With current values:
l = 336 [m/s]/420[1/s] = 0.8 meters
Since a complete cycle (360º or 2pi radians) needs 0.8 meters to complete, 0.4 meters or 40 cm is just half of it, making a 180º degree phase or 3.14 radians.