PHYS 6A Lecture 1: Hand written
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Freedman, ruskell, kesten, and tauck, college physics, 2nd edition. Only need to participate 75% of time for full 4% 1st midterm - jan 30th (open book exam) Three things to know from chapter 1. 3. 3 (days) * 24 (hours in a day) * 60 (minutes in an hour) = 4752 minutes. Change density of air (1. 3kg/m 3 ) into slugs/ft 3. 1. 3kg/1m 3 * 1^3 * 1 = (1. 3kg/1m 3 )(1 3 m 3 /3. 281 3 )(1 slug/14. 59kg) All measurements have some amount of uncertainty. Each number in a problem has an implied uncertainty based on the number of significant figures. Most numbers in the class will have 2-4 sig figs. Answer has the same amount of sig figs as the input with the smallest amount of sig figs. Must convert the answer to have 2 sig figs because the smallest amount of sig figs in the input is 2 sig figs (14m)
