# Question: The units for pressure p in terms of SI base

The units for pressure (p) in terms of SI base units are known to be kb/m∙s2. For a physics class assignment, a student derives an expression for the pressure exerted by the wind on a wall in terms of the air density (ρ) and wind speed (v) and her result is p = ρv2. Use SI unit analysis to show that her result is dimensionally consistent. Does this prove that this relationship is physically correct?

## Relevant Questions

Newton’s second law of motion (Section 4.3) is expressed by the equation F = ma, where F represents force, m is mass, and a is acceleration. (a) The SI unit of force is, appropriately, called the newton (N). What are the ...If the capillaries of an average adult were unwound and spread out end to end, they would extend to a length over 40 000 mi (Fig. 1.9). If you are 1.75 m tall, how many times your height would the capillary length equal? (a) Which of the following represents the greatest speed: (1) 1 m/s, (2) 1 km/h, (3) 1 ft/s, or (4) 1 mit/h? (b) Express the speed 15.0 m/s in mi/h. A student was 18 in. long when she was born. She is now 5 ft 6 in. tall and 20 years old. How many centimeters a year did she grow on average? The interior storage compartment of a restaurant refrigerator measures 1.3 m high, 1.05 m wide, and 67 cm deep. Determine its volume in cubic feet.Post your question