3. Inter Brand X aluminum foil is thicker than Brand Y. Is thickness a physical property or chemical property? Explain your answer.

coil wire, increase current, put iron inside the coil

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).

that the claims meet official rules.

don't misinterpret the claims

electric field is a function of 1/r^2

yes, the force per unit charge for a point charge is inverse square law.