Asolar sailplane is going from earth to mars. its sail is oriented to give a solar radiation force of frad = 8.60 × 102 n. the gravitational force due to the sun is 173 n and the gravitational force due to earth is 1.00 × 102 n. all forces are in the plane formed by earth, sun, and sailplane. the mass of the sailplane is 15,000 kg.

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.

The smallest particle of an element that retains its identity in a chemical reaction. true or false

How do you count the total number of atoms present on one side of a chemical equation?