The thermometer has its stem marked in millimeter instead of degree celsius. the lower fixed point is 30mm and the upper fixed point is 180mm. calculate the temperature in degrees celsius when the thermometer reads 45mm

Determine the amount of work done when a crane lifts a 100-n block form 2m above the ground to 6m above the ground

Air is contained in a variable-load piston-cylinder device equipped with a paddle wheel. initially, air is at 400 kpa and 17°c. the paddle wheel is now turned by an external electric motor until 75 kj/kg of work has been transferred to air. during this process, heat is transferred to maintain a constant air temperature while allowing the gas volume to triple. calculate the required amount of heat transfer in kj/kg.

Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.