It is estimated that, on average, every star has at least one planet that orbits it. What do you feel are the chances that there is another Earth-like planet in the universe? What do you feel are the chances that one of these planets supports life?

Ingrid wrote the hypothesis below. if the temperature of a liquid increases, the density of the liquid decreases because the particles move farther apart. what are the variables in her hypothesis?

How many atoms of nitrogen are in the chemical formula ni(w on

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.