How are period and frequency related to each other? a period is half the frequency. b period is twice the frequency. c period is equal to frequency. dperiod is the reciprocal of frequency. e period is the square root of frequency.

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.