Ryan is experimenting with core materials for an electromagnet. he slides different core materials through a coil of current-carrying wire. sort the core materials based on whether they will or won’t increase the strength of ryan’s electromagnet. a)wood, b)steel. c)silver. d)nickel. e)iron. f)glass

will increase strength: iron, nickel, steel

won't increase strength: wood, silver, glass

Explanation:

when two balls of the different masses are dropped from equal height, they reach the ground at the same time .this is because they experience the same acceleration.

the acceleration is independent of mass.

thus when they are dropped they will always maintain the same velocity and travel the same distance (neglect air resistance of course) at the same time.