How can hypotheses best be tested? by asking questions through experimentation by forming an opinion through technology

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

Why is the use of carbon-14 limited

Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.