Pagina 12 3 a carga elétrica de um corpo é -32 microcoulombs esse corpo tem falta ou excesso se elétrons? Quantos?

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

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

conduction, convection, radiation