I really need this answer quick. I would really appreciate it if anyone could answer with an explanation. Thank you! 6. The temperature of a sample of iron with a mass of 10.0 g changed from 50.4°C to a final temperature of 25.0°C when dropped in 90 grams of water, initially at 23.5 °C. What is the specific heat of iron?

In the first law of thermodynamics, triangle e=q-w, what does q stand for

Assume that a person skiing high in the mountains at an altitude of h = 15100 ft takes in the same volume of air with each breath as she does while walking at sea level. determine the ratio of the mass of oxygen inhaled for each breath at this high altitude compared to that at sea level. assume that the air composition (i.e. % of air that is oxygen) is the same at sea level as it is at 15100 ft.

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.