Question 4: How fast can a horse run a 1000 meter race if the average velocity of the horse is 8.2 meters per second?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?

Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air