Braddy connected the lose wire to the battery and created an electromagnet. he picked up 45 thumb tacks with his electromagnet, though his goal was to pick up 50 thumb tacks. what could braddy do to increase the strength of his electromagnet and pick up more thumbtacks? a) use fewer coils of wire. b) use a screw instead of a nail. c) use two batteries instead of one. d) replace the nail with a piece of steel.

Braddy could use two batteries instead of one.  One way he could increase the strength of his magnet is to increase the current and add a second battery. He could also add more coils of wire, not use fewer.

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.