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Which of the following statements about the ecological footprints of those living in the United States and in developing countries is true?U3The ecological footprint per person in the United States is approximately 25 times greater than that of a person in a developing nation.The ecological footprint per person in the United States is approximately 10 times greater than that of a person in a developing nation.The ecological footprint per person in the United States is approximately 100 times greater than that of a person in a developing nation.The ecological footprint per person in the United States is approximately twice that of a person in a developing nation.

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The base and sides of a container is made of wood panels. The container does not have a lid. The base and sides are rectangular. The width of the container is x cm . The length is double the width. The volume of the container is 72cm3 . Determine the minimum surface area that this container will have. Hint: draw a sketch and indicate the information

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Ephedra, a ___________ , produces alkaloids with medicinal properties and have been used in traditional medicine. a. Gnetophytes b. Ginkophytes c. Cycads d. Conifer

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The income elasticities of demand for luxury goods tend to be Question 19Select one: A. greater than 1. B. negative. C. greater than zero but less than 1. D. less than the income elasticities of demand for necessity goods. E. first positive and then negative as income increases.

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16. An ideal gas expands from 3 m³ to 8 m³ at a constant pressure of 40 kPa, then its pressure increases to 80 kPa at a constant volume. During the process, the gas absorbs 980 kJ of heat. What is the change in internal energy during the whole process? (Solution: 780 kJ)

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What is the assumption of Jeffrey Sachs's argument? ? The economic and political institutions of a country always impact development more than any adverse geographical conditions. ? By virtue of favorable geography, societies are more likely to be open to and develop command-based economic systems. ? There is a strong correlation between favorable geography and the likelihood that a society may develop a market-based economic system. ? Landlocked countries are more likely to experience economic growth than coastal countries.

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For the two PV diagrams below, find the net work done on the gas during the process indicated by the path. (Enter your answers in J.) (a) P (10$^5$Pa) 6.00 4.00 2.00 (b) P (10$^5$Pa) 6.00 4.00 2.00 V (m$^3$) 1.00 2.00 3.00 V (m$^3$) 1.00 2.00 3.00

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At t=0, a 1.6 kg ball is thrown from the top of a tall tower with velocity v⃗=(15 m/s) î+(25 m/s) ĵ. What is ΔU of the ball-Earth system between t=0 and t=6.6 s (still free fall)? Number Units

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b) Which if the following is an accurate interpretation of the P-value? • If it is true that a random sample of a dozen large eggs weighs 24.25 ounces or more, then there is a 4.8% chance that the mean weight of all cartons of a dozen large eggs is 24 ounces. • If it is true that all cartons of a dozen large eggs weigh 24 ounces on average, then there is a 4.8% chance that a random carton of a dozen large eggs will weigh 24.25 ounces or more. • There is a 4.8% chance that the mean weight of all cartons of a dozen large eggs is greater than 24 ounces. • There is a 4.8% chance that the mean weight of a random sample of a dozen large eggs will weigh 24 ounces.

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You have answered 0 out of 6 parts correctly. A particle undergoes uniform circular motion on a plane around the origin of the x-y coordinate system. The motion has a radius of 12.7 m and an angular frequency of 1.1 rad/s. At time $t = 0$ the coordinates of the particle are $x = 12.7$ m and $y = 0$. The particle rotates in the counterclockwise direction. Determine the following at time $t = 5.1$s: The components of the position of the particle $x = -12.63$ m $y = 1.24$ m The components of the velocity of the particle $v_x = 1.36$ m/s $v_y = 13.90$ m/s The components of the acceleration of the particle $a_x = -15.28$ m/s$^2$ $a_y = -1.50$ m/s$^2$

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jeanette t.