Asked by Gianna
Really confused on this question.
A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The biologist wished to compare the speed of the bacteria with other animals, but the speeds of other animals are listed in kilometers per hour. What is the speed of the bacterium in kilometers per hour? (1 micron = 1 x 10–6 m) Use scientific notation and express your answer to the correct number of significant figures.
You must show your work for full credit.
A microbiologist measures the speed of a swimming bacterium. The bacterium covers a distance of 2.16 microns in 5.0 seconds. The biologist wished to compare the speed of the bacteria with other animals, but the speeds of other animals are listed in kilometers per hour. What is the speed of the bacterium in kilometers per hour? (1 micron = 1 x 10–6 m) Use scientific notation and express your answer to the correct number of significant figures.
You must show your work for full credit.
Answers
Answered by
Graham
You simply need to express 2.16 micrometres in 5.0 seconds as some kilometres per hour, retaining the appropriate number of significant figures during conversion.
1 μm = 1×10^–6 m
1 km = 1×10^+3 m
1 hr = 3600 s
2.15μm / 5.0s = _._ ×10^__ km/hr
1 μm = 1×10^–6 m
1 km = 1×10^+3 m
1 hr = 3600 s
2.15μm / 5.0s = _._ ×10^__ km/hr
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