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A pendulum has a period of 0.80 s on Earth. What is its
Chapter 5, Problem 30P(choose chapter or problem)
Problem 30P
A pendulum has a period of 0.80 s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth?
Questions & Answers
QUESTION:
Problem 30P
A pendulum has a period of 0.80 s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth?
ANSWER:
SolutionStep 1Equation for Maximum theoretical efficiency Equation for maximum theoretical efficiency is, = Work done by the heat engine (output)/ amount of heat extracted from hot reservoir (input) Or, = W / Q H The work done by the heat engine is, W = Q - Q H C Where, Q - AmCnt of heat exhausted to the cold reservoir Therefore, the efficiency, = (Q - Q )HQ =C - (QH/ Q ) C H We can rewrite it in terms of temperature as, = 1 - (T / T ) --C---H--- (1) Where, T - tC erature of cold reservoir and T - temperaturHof hot reservoir