The doppler effect is a change in the observed frequency if there is relative motion between
a. two sources
b. two observers
c. a source and an observer

What is the number of phosphates in an atp molecule

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

Brainliest ! is slowing down a car an example of acceleration? explain. - explain correctly