Recent content by Sovos

Since the problem states "by the time the block stops." we can assume the final energy is purely potential energy. So one possibility could be finding the initial potential and kinetic energy and subtracting the final potential energy from those. KEi+PEi-PEf=Energy lost Then plug in...

I think this problem could be understood in 2 ways. Regardless of which way it is worded: At the start, A would be the brightest, since path A offers the least resistance of the two paths in the circuit. B and C would have a brightness less than A, but equal to each other. Perception 1: When...