Which of the following statements is true according to Pascal's principle?
a. Pressure in a fluid is greatest at the walls of the container holding the fl
b. Pressure in a fluid is greatest at the center of the fluid.
C. Pressure in a fluid is the same throughout the fluid.
d. Pressure in a fluid is greatest at the top of the fluid.

Which statement best describes the superposition principle? a.) if two in-phase waves arrive simultaneously at a point, their amplitudes add up b.) if two out-of-phase waves arrive simultaneously at a point, their amplitudes add up c.) if two in-phase waves arrive at a point one after another, their amplitudes add up d.) if two out-of-phase waves arrive at a point one after another, their amplitudes adds up