Maddie wanted to make a sugar-water solution to put in her hummingbird feeder. she found some sugar cubes and was about to drop them into a glass of water, when her brother suggested crushing the cubes before mixing. was this a good suggestion? why or why not?

Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?