Which statement explains the similarity between momentum and kinetic energy of an object? a. both are inversely proportional to the mass and velocity of the object. b. both are directly proportional to the mass and velocity of the object. c. both are inversely proportional to force and displacement. d. momentum is directly proportional to the mass of the object and the square of the velocity of the object. e. kinetic energy is directly proportional to the mass of the object and the square of the velocity of the object.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

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.

A51 kg woman skis down a hill and her kinetic energy is 9.96e4 j. what is her speed?