Blog

Scientific Calculator A heat engine in each cycle extracts of thermal energy and releases  of thermal energy. What is the efficiency of the heat engine? Express your answer as a percentage and round your final answer to the nearest whole number.  

Suppose you have a big group presentation tomorrow for a class and are worried that your group members will forget to bring their materials. The probability that Group Member 1 will forget his materials is 0.50, the probability that Group Member 2 will forget his materials is 0.25, and the probability that Group Member 3 will forget her materials 0.60. Further suppose that these events are independent. What is the probability that all your group members remember their materials?  Round your answer to 2 decimal places.

Describe, exemplify, and/or illustrate: (i) the Three Pillars of Sustainability in its entirety [out of 6 pts], (ii) the difference between climate change mitigation and adaptation strategy or technology [out of 3 pts], and (iii) the meaning of the Jevon’s Paradox [out of 3 pts].   A new car technology reduces environmental impacts and has been deemed to satisfy economic requirements. However, the car’s marketing and design tends to attract only a small part of society for its use, making it an unsatisfactory option for society overall. Given this information and using your responses to part “i” and “ii” as reference, (iv) describe which ‘partial’ or weak sustainability category this technology falls into and why [out of 4 pts], and (v) describe if this technology falls within the climate change mitigation or adaptation category and why [out of 4 pts]. [20 pts max]

Describe and/or exemplify: (i) what systems literacy means [out of 4 pts], (ii) the major time assessment difference between human and natural systems [out of 2 pts], and (iii) the difference between strong and weak sustainability [out of 2 pts].   A city wants to maintain its environmental impact levels from year 2022 to 2060. If its population is expected to grow by 25% while the overall economy is expected to grow 2.1 times as large during this period, (iv) how much more efficient does technology need to be in year 2060 [out of 6 pts]. This same city is expected to acquire 23,250 emission-efficient cars in year 2060. If we expect emission-efficiency to increase by 53% between the years 2060 and 2070, with all relevant market and demographic factors assumed to remain unchanged, (v) what will be the car need based on Jevon’s Paradox in year 2070 [out of 6 pts]? [20 pts max]

What does it mean for DNA strands are “antiparallel”?

What is YOUR vision of a sustainable and just future? Describe this vision in as much detail as possible. What does it look like, and in what ways is it both just and sustainable?

Res ipsa loquitur is translated as “let the master answer.”

Minors are persons and enjoy rights that belong to everyone from birth. One of these rights is the constitutional right to privacy.

An individual is taken to an emergency room while unconscious. It is implied that the patient will accept treatment and responsibility for payment of the treatment.

Physicians may limit their practice within a particular specialty, to a certain geographic area, may limit the hours they are available, may take vacation time away from their practice, and may refuse to enter into contractual relationships.