wavelengths and such

[Studyinghard]

A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s
a) what is the distance in the air between the flying bullets?
b) What happens to the distance between the bullets if the rate of fire is increased?


2) Consider a wave generator that produces 10 pulses per second. The speed of the wave is 300 cm/s
a) what is the wavelength of the waves?
b) What happens to the wavelength if the frequency of pulses is increased?

thnx

[Mao]

1 a) 30m, b) decreases

2 a) 30m, b) decreases