As sondas da agência espacial americana (nasa) spirit (mer-a) e opportunity (mer-b) seguramente, nao encontram em seu percurso: a)raios x, b)raios gama, c)radiação ultravioleta, d)microondas, e)ondas sonoras.

During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.