A spelunker is exploring a cave and follows a passage 18 m west, then 21 m 50° north of east, then 28 m 30° south of east. Determine the resultant vector to establish the distance and direction she is from the starting point. (Draw the vector diagram at scale).

Which best describes the first law of thermodynamics as compared to the second law of thermodynamics? a. the first law describes how thermal energy is conserved but not the direction it moves. b. the first law describes the direction thermal energy moves but not how it is conserved. c. the first law describes how thermal energy can be created but not how it can be destroyed. d. the first law describes how thermal energy can be destroyed but not how it can be created.