Josephine is coming home late, past her curfew. As she sneaks quietly into her house trying not to wake up her parents, she moves up the stairs moving 10.7 m in 26.8 s. Find her speed.

Her speed is 0.39 m/s.

Explanation:

To calculate the speed of something or someone, we need to know the distance traveled and the time taken to do so. According to the instructions, Josephine traveled the distance of 10.7 m. The time she took to do it was 26.8 s. The formula to determine the speed is:

s = d/t

That is, if we divide the distance by time, we find the speed:

s = 10.7/26.8

s = 0.39 m/s

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science and technology in the islamic world adopted and preserved knowledge and technologies from contemporary and earlier civilizations, including persia, india, china, and greece-roman antiquity, while making a number of improvements and innovations.