Ice cream is made by cooling a mixture of liquid ingredients until they freeze. Figure 6 shows a bowl used for making ice cream. The walls of the bowl contain a liquid coolant. The bowl is cooled to -20 degrees before the mixture is put in the bowl. The bowl causes the mixture to cool down and freeze. Explain why the different thermal conductivities of metal and plastic are important in the design of the bowl.
Answers: 3
Physics, 22.06.2019 10:20, yofavvlele
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.
Answers: 2
Physics, 23.06.2019 00:20, nadiareese
When can a theory be modified if a new type of technology allows for new observations that raise new questions? a-immediately, while the questions about the theory are being asked b-after new hypotheses related to the theory are tested in experiments c-only after the new observations disprove all parts of the theory d-while scientists begin to think about how the theory could improve
Answers: 1
Ice cream is made by cooling a mixture of liquid ingredients until they freeze. Figure 6 shows a bow...
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