The rigid bar is pinned at a and supported by two aluminum rods, each having a diameter of 1 in. a modulus of elasticity eal = 10(103) ksi, and yield stress of (sy)al = 40 ksi. if the bar is initially vertical, determine the angle of tilt of the bar when the 20-kip load is applied.

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?

The force it would take to accelerate an 900-kg car at the rate of 6m/s2

Write a hypothesis about the effect of increasing resistance on the current in the circuit. use theformat and be sure to answer the lesson question. “how do changes in voltage or resistance affect current in an electric circuit? ”