A horizontal pipe of diameter 0.842 m has a smooth constriction to a section of diameter 0.5052 m. The density of oil flowing in the pipe is 821 kg/m3 . If the pressure in the pipe is 7370 N/m2 and in the constricted section is 5527.5 N/m2 , what is the rate at which oil is flowing?

Answer in units of m3/s.

some think that theories become laws, but theories and laws have separate and distinct roles in the scientific method. a law is a description of an observed phenomenon in the natural world that hold true every time it is tested. it doesn't explain why something is true; it just states that it is true.

where are the vectors ?

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.