Which of the following statements is true? a. matter and energy do not interact. b. energy can change from one form to another. c. energy does not transfer from place to place. d. energy cannot be stored.

Let v1, v2, w be three linearly independent vectors in r 3 . that is, they do not all lie on the same plane. for each of the following (infinite) set of vectors, carefully sketch it in r 3 , and determine whether or not it is a vector space (i.e., a subspace of r 3 ). explain your reasoning

Consider two metallic rods mounted on insulated supports. one is neutral, the other positively charged. you bring the two rods close to each, but without contact, and briefly ground the the neutral rod by touching it with your hand. show answer correct answer what would be resulting charge (if any) on the initially neutral rod

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.