What is the wavelength of a wave if it moves at 100 m/s and has a frequency of 33 Hz?

The average speed of a sound is 343 m/s. If a pitch is heard at 500 Hz, what is the wavelength of that sound?

The average speed of sound is 343 m/s. If a wavelength of a certain sound is 1.3 m, what is the frequency of that sound?

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

The intensity of a polarized electromagnetic wave is 12 w/m^2. part a) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=0∘ with the plane of polarization? part b) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=30∘ with the plane of polarization? part c) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=45∘ with the plane of polarization? part d) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=60∘ with the plane of polarization? part e) what will be the intensity after passing through a polarizing filter whose axis makes the angle θ=90∘ with the plane of polarization?

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?