I don’t even know I’m pretty sure it’s 7.0 though
Answer:
Transverse wave
Explanation:
Depending on the direction of the oscillation, there are two types of waves:
- Transverse wave: in a transverse wave, the oscillation occurs in a direction perpendicular to the direction of propagation of the wave. These types of waves are characterized by alternating crests and troughs. Examples of transverse waves are electromagnetic waves.
- Longitudinal wave: in a longitudinal wave, the oscillation occurs in a direction parallel to the direction of propagation of the wave. These types of waves are characterized by alternating regions of higher density (compressions) and lower density (rarefactions). Examples of longitudinal waves are sound waves.
Answer:
a)30.67 m/s
b)348,12 Hz
c)32,34 m/s
d)289,69 Hz
Explanation:
a)
To convert 69 mph to m/s we have:
b)
For a resting receiver and an approaching source we have the following Doppler formula:
where is the source, and c is the speed of sound, f the perceived frequency and the frequency as perceived by the source. Plugging all the relevant values we get:
c)
Using the same formula as above and solving for we have:
d)
Now we have another Doppler formula for a source that is moving away from the receiver: