Magnets will always... 5 points
Attract to aluminum and other non-metals
Repel each other when their poles are opposite (i. e. a North and South pole)
Attract when opposite poles (North/South poles) are next to each other

The pilot of a helicopter hovers at an altitude of 1200 feet over a park. the angle of depression to the base of a statue is 17 degrees. the angle of depression to the nearest park exit, in line with the statue, is 14 degrees. to the nearest foot, what is the distance from the statue to the exit?

Ideal meters problem. what internal resistance is ideal for a voltmeter? what internal resistance is ideal for an ammeter?

Why is a noble gas different from other elements?