Which pair of features best characterizes a sound wave?
a) crest and compression
b) crest and troughs
c) compression's and rarefaction's
d)rarefaction's and troughs

In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.

Talia is manufacturing rolls of wire for hanging pictures. she needs a material that is so that it can easily be pulled into wire without breaking.