The unit of momentum is
Select one:
a. J/s
b. N/s
c. kgm/s
d. Nms​

The difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

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.