If a ball is rolling across a frictionless floor, an unbalanced force will change its speed or direction?
True or false

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons

What is it called when part of a cell membrane closes around a molecule to allow the molecule to enter the cell? a. passive transport b.diffusion c. endocytosis d. exocytosisc. endocytosis