Which of these pairs of quantities is used to describe the transfer of energy to or from a substance? A. heat and work B. heat and kinetic energy C. work and potential energy D. potential energy and kinetic energy

B. heat and kinetic energy

Explanation:

Heat is a form of energy that flows with respect to temperature difference. Thus, heat energy would flow from an object with higher temperature to that at lower temperature. It generally cascades from a high temperature body to lower temperature body through a medium or when in contact.

Kinetic energy is the energy that is inherent in a moving object. Thus, it can be converted to other forms or transferred between objects. Example, a moving object can transfer part of its kinetic energy to an object at rest on collision. This may cause the motion of the initial stationary object.

Therefore, heat and kinetic energy can be used to describe transfer of energy to or from a substance.

muscle endurance

explanation:

i can do 50 in a row ( but i get so tired after that)

no. dot product   =0 when vecs at right angles