The velocity potential for a certain inviscid flow field is \phiϕ = - (3x2y - y3), where \phi has the units of ft2/s when x and y are in feet. Determine the pressure difference (in psi) between the points (2, 3) and (4, 4), where the coordinates are in feet, if the fluid is water and elevation changes are negligible.

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only

explanation:  

an electrode is a metal whose surface serves as the location where oxidation-reduction equilibrium is established between the metal and what is in the solution.