(II) A child in a boat throws a package out horizontally with a speed of
, Fig.
. Calculate the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is
, and that of the boat is
. Ignore water resistance.
Chapter 9: Fourier Analysis of Simplest Sound Spectra 9.1 What Is a Spectrum 1. In Latin spectrum means “image” or “apparition”, including the meaning “spectre” or “ghost”. 2. In can be pressure variation in a sound wave or displacement of a mass on the string from equilibrium position. 3. If the process shown is a sound wave that falls in the audible range of frequencies, we will hear a steady sound in all three situations, but the character, or timbre of sound, will be different. 4. In physics, instead of graphs showing the oscillatory process as function of time, we use the graphs to show the frequency content of t
