How many calories of heat must be added to 75 grams of water at 20 degrees to become 100 degree of steam? Please answer ASAP it’s due today by 11pm. I would appreciate it if you could answer by today. Thanks in advance.

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

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.

What is the major limitation to the light microscope?