How does the horizontal velocity of a projectile change throughout its motion? please answer in the form of a hypothesis using If, then, and because

Which is not true about oxygen-17 and oxygen-18?

Ascientific blank must be testable and capable of being proven false?

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.