4. a subsonic wind tunnel with an area ratio of 1/6 is operating at standard sea level conditions. a. if the test section speed is 44 ft/s, what is the pressure difference between the settling chamber and the test section? b. if the pressure in the settling chamber is 2000 lb/ft2, what is the pressure in the test section? c. the exit of the diffuser has an area that is 7 times the size of the test section. what is the velocity at the exit of the diffuser? d. what is the pressure at the exit of the diffuser?

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

false

explanation: