Can someone help me with a physics lab? pls. it's a uniform acceleration motion lab

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Abird flies directly overhead from where you stand at an altitude of 300.0 m and at a speed horizontal to the ground of 20.0 m/s. the bird has a mass of 2.0 kg. the radius vector to the bird makes an angle \thetaθ with respect to the ground. the radius vector to the bird and its momentum vector lie in the xyxy-plane. what is the bird’s angular momentum about the point where you are standing?

The junction rule describes the conservation of which quantity? note that this rule applies only to circuits that are in a steady state.