The wavelength of a wave is the distance between
a. the crest and the following trough.
b. two consecutive crests.
c. the amplitude and the normal position.
d. the rarefaction and the following compression.

Define the meaning of the unalienable rights of life liberty and persuit of happiness

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

Science and technology are interdependent. advances in one lead to advances in the other. give an example of this phenomenon.