A calorimeter has a mass of 150g and is at a temperature of 30°C. The calorimeter is filled with 150g water at 85°C. After time the final temperature is 65°C. Assuming no energy is lost what is the specific heat capacity of the calorimeter

The passage that directs air to the lungs is called a. diaphragm. b. larynx. c. bronchi. d. pharynx.

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.

Select the correct answer. what does the process of natural selection involve?