What current is required to create a magnetic field of 0.500 gauss a distance 0.219 from a wire? Provide your answer to the proper number of significant digits and include the proper unit.

An ideal transformer has 60 turns in its primary coil and 360 turns in its secondary coil. if the input rms voltage for the 60-turn coil is 120 v, what is the output rms voltage of the secondary coil?

Most short-period comets do not have randomly oriented orbits because

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration