If you want to tune a guitar string to a higher frequency, you should
a) increase the tension in the string.
b) decrease the tension in the string.
c) replace the string with a longer one.
d) replace the string with a more massive one.

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

What is the freezing point of radiator fluid that is 50% antifreeze by mass? kf for water is 1.86 ∘c/m.

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.