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CAPA - Practice Problems 1 1.You measure the mass of a...

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Practice Problems 1 1 .You measure the mass of a physics textbook to be 1.63±0.08 kg, and use this value to estimate the total mass of 500 identical physics textbooks in the bookstore. What is the absolute uncertainty in your estimate of the total mass? Answer: 4e+01 kg 2 . What is the relative uncertainty in your estimate of the total mass? Answer: 5e-02 3 . What is the relative uncertainty in your original measurement of the mass of a single book ? Answer: 5e-02 4 . A physics textbook is 42±1 mm thick, and a math textbook is 48±2 mm thick. If the two are placed side-by-side on a bookshelf, what is the most likely value of the total space (length of shelf) they will occupy? Answer: 90 mm 5. What is the absolute uncertainty in the shelf space needed? Answer: 3 mm 6 . What is the relative uncertainty in the shelf space needed? Answer: 3e-02 7 . A gravel truck is weighed as it arrives at a construction site, and weighed again as it leaves, after dumping some of its gravel. The loaded truck had a mass of

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CAPA - Practice Problems 1 1.You measure the mass of a...

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