Awidow's peak is a v-shaped area of the hairline in the center of the forehead. the allele for having a widow's peak is dominant to the allele for not having a widow's peak.

if two parents do not have widow's peaks, what is the probability that their child will have a widow's peak?

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy