An estimator is preparing a bid for a home remodeling project. She has determined that the new garage needs 324 feet of 2 × 10 lumber; the new rec room requires 430 feet; and the new upstairs bonus room needs 283 feet. How many feet of 2 × 10 lumber will be needed?

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.

What precautions should you take to prevent injuries when dealing with heavy loads?

Fluids at rest possess no flow energy. a)- true b)- false