Abaseball has a mass of 145 g. a bat exerts a force of 18,400 n on the ball. what is the acceleration of the ball?

The ph is the a.independent variable b.the dependent variable c.control group

The force needed to overcome static friction is usually less than that needed to overcome kinetic friction.true or false?

Assume that two of the electrons at the negative terminal have attached themselves to a nearby neutral atom. there is now a negative ion with a charge -2e at this terminal. what are the electric potential and electric potential energy of the negative ion relative to the electron? the electric potential and the electric potential energy are both twice as much. the electric potential is twice as much and the electric potential energy is the same. the electric potential is the same and the electric potential energy is twice as much. the electric potential and the electric potential energy are both the same. the electric potential is the same and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron. the electric potential is twice as much and the electric potential energy is increased by the mass ratio of the oxygen ion to the electron.