A pipeline having length 13 meter and is placed inclined an angle 20 with the horizontal . Assume that the diameter of lower end is 100 mm where velocity of water is 3.75 m/sec upward and the upper end is 300 mm . Determine the difference of pressure between the two endas of the pipe section.

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false