Answer:
reflection of water ,sound and water waves etc
Answer:
The answer is B. Without a college education, workers will actually lose money in the long run.
Explanation:
Just got it right on the assignment
The answer is: to determine that electric beams in cathode ray tubes were actually made of particles
I hope this helps!
Answer: 60m/s
Explanation:
The wavespeed is the distance covered by the wave in one second. It is measured in metre per second, and represented by the symbol V
Wavespeed (V) = Frequency F x wavelength λ
i.e V = F λ
In the first case:
Wavespeed = 30 m/s
Frequency of sound = 6Hz
Wavelength = 5m
In the second case:
Wavespeed = ?
Frequency of sound = (2x 6Hz = 12Hz)
Wavelength = 5m (remains constant)
Apply V = F λ
Wavespeed = 12 Hz x 5m
Wavespeed = 60m/s
Therefore, when frequency is doubled, the speed is also doubled. Thus, the new speed of the wave is 60m/s
Exosphere is the answer . I have done this lesson in my physics class it's exosphere.
