What instruments do you think will be needed to find the pressure of someone standing flat footed?

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?

At what time will the interfering waves have an amplitudeof zero?

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.