Ses 141 Exam 3 Questions And Answers (Verified And Updated)

Ses 141 Exam 3 Questions And Answers (Verified And Updated) Estimate recommended daily intake for the average american adult - answer2000 calories estimate average daily power your body consumes (watt) - answer(2000x4.2)/(24x2600) = 0.146kwatt = 146 watt estimate average mass of a human (kg) - answerhuman mass = approx 200 lbs = 90 kg estimate the average mass of an adult human brain (kg) - answerbrain mass = approx 3 lbs = 1.4 kg estimate the power your brain uses if it uses the same amount of energy as any part of your body (watt) - answerbrain = approx 230 kcalories a day = 23 calories power = (23x4.2)/(24x3600) - 0.00111 kwatt = 1.11 watt if your brain consumes 10x the amount of energy as any other part of your body by mass, estimate the power the brain uses (watt) - answer1.11 watt x 10 = 11.1 watt the flow of energy from earth's interior to the surface is about 50 terawatt (1 terawatt = 1e12 joule/sec). estimate how much geothermal energy reaches Earth's surface in one day (in joule) - answer1 terawatt = 1e12 joule/sec) 50 terawatt = 50e12 joule/sec 1 day = 86400 seconds 86400 x 50e12 = 4.32e18 joule estimate humanity's current consumption of energy in one day (in joule). - answerhuman consumption = approx 18 terawatt = 18e12 joule/sec 86400 x 18e12 = 1.60e18 joule assuming 100% efficiency of extracting geothermal energy, estimate the ratio of geothermal energy to human's current annual world consumption of energy - answer(4.32e18 joules) / (1.6e18) = 2.70 estimate the number of people in the world - answer7e9 estimate the percentage of people who brush their teeth - answer85%