A wave, propagating along the x direction accordingto Equation (5.18), has a maximum displacement of4.0 cm at x 0 and t 0. The wave speed is 5.0 cm/s,and the wavelength is 7.0 cm. (a) What is the frequency?(b) What is the waves amplitude at x 10cm and t 13 s?
FIU - PHYSICS WITHOUT CALCULUS I - PROF. HAWKINS REVIEW #1: INTRO TO CH 1 & 2 ▯ www.clutchprep.com ▯ FIU - PHYSICS WITHOUT CALCULUS I - PROF. HAWKINS REVIEW #1: INTRO TO CH 1 & 2 CHAPTER 1 – INTRO TO PHYSICS ● Physics is the study of natural phenomena, including LOTS of measurements and equations. It’s math with rules. UNITS IN PHYSICS ● In science, we measure physical quantities. Measurements have __________. We also have lots of _______________. - Units have to be _________________ with one another for equations to “work”. For example: F = m a ( Force = Mass * Acceleration ) [ ] = [ ] [ ] QUANTITY S.I. UNIT ● A group of units that “work together” is called a ___________ of units. - In Physics, we use the _____________ ( Système International ). [ ] [ ] - Many other conventions / standards are used in Physics. [ ] CONVERTING UNITS ● Because there are other units, we must convert them into S.I. units before plugging into equations. EXAMPLE 1: Convert 44 lb into kg (1 kg = 2.2 lb): PATTERN: