An athlete is running a 5-km race at an average speed of 8 km/h. She has to
stop to tie her shoe. After tying her shoe, she continues running at 8 km/h. Why
would her average speed for the entire race be less than 8 km/h?
The total distance she traveled was
longer than 5 km.
The total distance she traveled was
shorter than 5 km.
The total time she took to complete
O the race increased because she
stopped.
The total time she took to complete
O the race decreased because she
stopped.
Answers: 2
Chemistry, 21.06.2019 17:50
Which best describes why nh4+ can form an ionic bond with cl-?
Answers: 3
Chemistry, 22.06.2019 06:30
The following reaction shows sodium carbonate reacting with calcium hydroxide. na2co3 + ca(oh)2 → naoh + caco3 how many grams of naoh are produced from 20.0 grams of na2co3? (molar mass of na = 22.989 g/mol, c = 12.01 g/mol, o = 15.999 g/mol, ca = 40.078 g/mol, h = 1.008 g/mol) 12.2 grams 15.1 grams 24.4 grams 30.2 grams
Answers: 2
Chemistry, 22.06.2019 14:00
What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?
Answers: 3
An athlete is running a 5-km race at an average speed of 8 km/h. She has to
stop to tie her shoe. A...
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