davilynealvarado1234
02.11.2020 •
Mathematics
I will mark brainy
A speck of dust is 5.0 x 10^-7 m wide. Which of the following is the best way
to rewrite this quantity, using more appropriate units?
A. 5.0 x 10^-5 cm
B. 5.0 x 10^-4 mm
C. 5.0 x 10^-7 m
D. 5.0 x 10^-10 km
Solved
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Ответ:
B
Step-by-step explanation:
5.0 x 10^-4 mm
Ответ:
2870 miles and 210 miles per hour
Step-by-step explanation:
Multiply 2 hours by 7 to get to 14, so you multiply 410 by 7 to get to 2870 miles. 410/2 equals 210 miles per hour