Explain why a clothes iron with a metal base must be connected to the mains by a three-core cable.

How to tell if a molecule is polar or nonpolar with electronegativity

Observations show that interstellar clouds can have almost any shape and

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.