Steam enters a diffuser operating at steady state with a pressure of 1 bar, a temperature of 150oC, and a velocity of 185 m/s. Steam exits the diffuser as a saturated vapor, with negligible kinetic energy. Heat transfer occurs from the steam to its surroundings at a rate of 12 kJ/kg of steam flowing. Neglecting potential energy effects, determine the exit pressure, in kPa.

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

+15-35=-20

going in opposite directions

answerdmitry mendeleyev made a workable classification of the elements