Designing an energy attenuation system that controls the 1200 kg car traveling at 100 km/hr at impact. Compare to design an energy attenuation system that controls the energy of a car at a fast speed.

Apiston-cylinder with a volume of 0.25 m3 holds 1 kg of air (r 0.287 k/kgk) at a temperature of 100 c. heat transfer to the cylinder causes an isothermal expansion of the piston until the volume triples. how much heat is added to the piston-cylinder?

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

On a average work day more than work place firs are reorted