Tis correct to say that impulse is equal toa) momentum. b) the change in momentum. c) the force multiplied by the distance the force acts. d) all of these. e) none of these.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?