PHY132H1 Study Guide - Midterm Guide: Sound Intensity, Bilingual Dictionary, Calculator
Document Summary
Aids allowed: a pocket calculator with no communication ability. A single aid-sheet prepared by the student, no larger than 8. 5 x11 , written on both sides. = 3. 14159 is the ratio of the circumference to the diameter of a circle. The speed of sound in air may be assumed to be 343 m/s, unless otherwise stated. Coulomb"s law constant is k = 8. 99 109 n m2/c2. When one person shouts at a football game, the sound intensity level at the centre of the field is 60 db. When all the people shout together, the intensity level increases to 100 db. = micro- = 10 6 m = milli- = 10 3 n = nano- = 10 9 c = centi- = 10 2. I2 = ni1. (c) 10,000 (b) 400 (a) 40. Ocean waves with a wavelength of 120 m are moving east at a speed of 16 m/s relative to the shore.
