The alarm at a fire station rings and an 86-kg fireman, starting from rest, slides down a pole to the floor below (a distance of 4.0 m). Just before landing, his speed is 1.4 m/s. What is the magnitude of the kinetic frictional force exerted on the fireman as he slides down the pole?
ilami (ki2628) – Homework #10 – reichl – (55945) 1 This print-out should have 17 questions. From the ideal gas law Multiple-choice questions may continue on the next column or page – ﬁnd all choices P V = nRT 3 before answering. n = P V = (455 Pa) 0.000392 m RT (8.31451 J/K · mol)(273 K) 001 10.0 points = 7.85775 × 10 −5 mol . The coeﬃcient of linear expansion for a silver strip is 1.9 × 10 / C. What is its length on a hot day when the 003 (part 2 of 2) 10.0 points temperature is 36 C if the strip is 0.9 m long when