The motion of a particle executing simple harmonic motion is described by the displacement function, x(t) = A cos(wt + Q) If the initial (t = 0) position of the particle is 1 cm and its initial velocity is c cm/s. Find a) The wave amplitude

and b) The wave initial phase angle "Q"

the motion of a pendulum is a classic example of mechanical energy conservation. a pendulum consists of a mass (known as a bob ) attached by a string to a pivot point. as the pendulum moves it sweeps out a circular arc, moving back and forth in a periodic fashion.

a. carbon monoxide from car exhaust

b.particulate matter, such as soot

c.water vapor from a factory smokestack

d.acid rain

these are the answer choices im on that question right now