What is the soil layer that composes the topsoil?
a. A c. R
b. C d. O
A
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The annual average insolation (energy of sunlight per unit area) striking a fixed solar panel in Buffalo, New York, is 200 W?m?2, while in Phoenix, Arizona, it is 270 W?m?2. In each location, the solar panel converts 15% of the incident energy into electricity. Average annual electricity use in Buffalo is 6000 kW?h at an average cost of $0.15 kW?h, while in Phoenix it is 11,000 kW? h at a cost of $0.09 kW? h.
(a) In each city, what area of solar panel is needed to meet the average electrical needs of a residence? (b) In each city, what is the current average annual cost of electricity? (c) If the solar panel has a lifetime of 20 years, what price per square meter of solar panel can be justified in each location? Assume that future increases in electricity prices offset the cost of borrowing funds for the initial purchase, so that you need not consider the time value of money in this analysis.
What part did African-American artists, writers, and musicians play in the new culture of the 1920s? How do you explain this burst of cultural creativity at a time when most blacks were still oppressed and segregated?
What will be an ideal response?
It is not always important to have specific goals in mind prior to pruning to achieve the best results
Indicate whether the statement is true or false
?The terms arrow side, other side, and both sides are used to indicate the ____.
A. ?weld location with respect to the joint B. ?dimensions of the part C. ?type of joint D. ?root opening