A disk with mass m rests on an inclined surface for which ������ =0. 2. Determine the maximum vertical force p that may be applied to link ab without causing the disk to slip at c.

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?