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a 1 kg block of copper is hammered into a thin sheet. the length of the copper sheet is 30cm. what is the mass of the copper sheet?

a. cannot be calculated at all

b.1.03 kg

c.30 kg

d. 1 kg

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Restless tectonic plates move (shift) between one and fifteen centimeters per year month day minute

9. the history of life on earth is recorded in

Australopithecus robustus was likely the longest-surviving species of australopithecine in south africa. it had: a. large molars, a big face, and a sagittal crest. b. a large body, large teeth, and a sagittal crest. c. a big brain, big teeth, and a big face. d. a big face, large teeth, and a large body