Please help me this is snells law

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field

The allele for curly hair is incompletely dominant. if a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents? 25 percent 50 percent 75 percent 100 percent

What is the average speed of a car that traveled 300.0 miles in 5.5 hours