Humans’ use of rocks and minerals as building materials is an example of which interaction?


Answer: an interaction between the biosphere and the geosphere

Physics & Space Science

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Two point charges of +1.0 ?C and -2.0 ?C are located 0.50 m apart. What is the minimum amount of work needed to move the charges apart to double the distance between them? (k = 1/4??0 = 8.99 × 109 N • m2/C2)

A) -36 mJ B) +18 mJ C) 0 mJ D) +36 mJ E) -18 mJ

Physics & Space Science

When only part of the Moon is covered by Earth's full shadow (umbra), we see a(n)

A) total lunar eclipse. B) penumbral lunar eclipse. C) partial lunar eclipse. D) partial solar eclipse. E) annular eclipse.

Physics & Space Science

A 120. mH inductor is in series with a 20. ? resistor and a variable capacitor (0.110 ?F to 0.400 ?F)

(a) What is the range of resonant frequencies possible? (b) Connected to a 24. volt rms source, what current flows at resonance?

Physics & Space Science

Upon entering a medium in which the speed of light is 1.5 × 10^8 m/s from a medium in which the speed of light is 2 × 10^8 m/s, an oblique light ray will be _____________ the normal to the interface between the two media

a. bent away from c. travel along b. bent toward d. remain undeviated with respect to

Physics & Space Science