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24.10.2019 •
Physics
Atrain travels 99 kilometers in 2 hours, and then 90 kilometers in 3 hours. what is its average speed?
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Ответ:
Average speed =
(total distance)/(total time)
Average speed = (99+90)/(2+3)
That's (189 km) / (5 hr)
Average speed = 37.8 km/hr
Ответ:
The Fahrenheit scale is a temperature scale based on one proposed in 1724 by the physicist Daniel Gabriel Fahrenheit (1686–1736). It uses the degree Fahrenheit (symbol: °F) as the unit. ... Canada has passed legislation favoring the International System of Units, while also maintaining legal definitions for traditional ...