Physics Past Questions and Answers

Which of the following units is derived?

The barometric reading at a place is 73.5m Hg. Calculate the pressure at a point 30m below the surface of water contained in a reservoir at the place. [g = ms<sup style='font-size: smaller;'>-2</sup>, density = 1.2 x 10<sup style='font-size: smaller;'>4</sup>kg m<sup style='font-size: smaller;'>-3</sup>, density of water = 1.0 x 10<sup style='font-size: smaller;'>3</sup>m<sup style='font-size: smaller;'>-3</sup>]

An object floats in a fluid when it displaces it's

The resultant force in a couple is

The slope of a straight-line velocity-time graph represents