When the piston of a fountain pen with a nib is dipped into ink and the air is relaesed by pressing it the ink fill in the pen. Why?

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

One form of energy can be another type of energy. a. created to form b. transformed into c. destroyed and then created to form

Suppose a wire with a current is pushed upward by a magnetic field. how would the wire move if the direction of the current reversed? explain your answer.