Posted: December 30th, 2021

2. Give the following answers to two signi?cant ?gures. a) Get up, walk around, and count the number of breaths you take in a minute.b) Suppose you are enjoying a snowy day with a nice stroll outside where the temperature is —7.6 °C. Your body breathes in this cold air and then needs tospend energy to change its temperature to your own, 37 °C. Suppose each breathtakes in a half a liter of air that has density pail- = 1.2m1 0’3 g/mL and specificheat one-fourth that of water’s. How much energy do you spend warming the airyou breathe while walking outside for 1 hour in these conditions? (Remember toconvert units where necessary!)

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