star a is 4 light ears away from earth. star b is 10 light years away from earth. when you observe both stars from earth they appear to have the same brightness. how do the stars apparent magnitudes compare?

Most of the volume of an atom is occupied by the

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.