Why dont streams flow horizontal

Which notation is used to represent an alpha particle? a. b. c. d.

If a balloon is taken outside on a very cold day, what will occur?

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.