Suppose you have two solid bars, both with square cross-sections of 1 cm2. They are both 21 cm long, but one is made of copper and one of iron. You place the two side by side and braze them together, making a composite bar with a cross-section of 2 cm2. If one end of this rod is placed in boiling water and the other end in ice water, how much power (to three significant digits) will be conducted through the rod when it reaches steady state?.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

Which early modernism trend in art focused on prehistoric or exotic cultures? a. primitivism b. expressionism c. impressionism d. total serialism

Analyze the forces acting on a cyclist who is slowing down as he or she climbs a hill