Solve.The mass of an electron is approximately 9.11 × 10-28 grams. Find the mass of 539,000,000 electrons.
A. 4.91029 × 10-17 grams
B. 4.91029 × 10-20 grams
C. 4.91029 × 10-18 grams
D. 4.91029 × 10-19 grams
Answer: D
Mathematics
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A. 
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Fill in the missing value.548 mm = cm
A. 5.5 B. 54,800 C. 54.8 D. 5480
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Solve the problem.You are driving along a highway at a steady 81 ft/sec when you see a deer ahead and slam on the brakes. What constant deceleration is required to stop your car in 
A. 32.32 ft/sec2 B. 0.06 ft/sec2 C. 16.16 ft/sec2 D. 8.08 ft/sec2
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For ?ABC, given the measures of ?A and ?B, find the measure of ?C.?A = 28.9° and ?B = 62.8°
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Mathematics