![subject](/tpl/images/cats/fizika.png)
Physics, 27.06.2019 05:20 ithebrainliest
Roger runs a marathon. his friend jeff rides behind him on a bicycle and clocks his speed every 15 minutes. roger starts out strong, but after an hour and a half he is so exhausted that he has to stop. jeff's data follows. time since start (min) 0 15 30 45 60 75 90 speed (mph) 13 12 10 10 8 7 0 (a) assuming that roger's speed is never increasing, give upper and lower estimates for the distance roger ran during the first half hour. miles (lower estimate) miles (upper estimate) (b) give upper and lower estimates for the distance roger ran in total during the entire hour and a half. miles (lower estimate) miles (upper estimate)
![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 22:00
Why do electron microscopes have higher resolving power than light microscopes?
Answers: 1
![question](/tpl/images/cats/fizika.png)
Physics, 21.06.2019 23:30
If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell
Answers: 3
You know the right answer?
Roger runs a marathon. his friend jeff rides behind him on a bicycle and clocks his speed every 15 m...
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 10.05.2021 21:40
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 10.05.2021 21:40
![question](/tpl/images/cats/mat.png)
Mathematics, 10.05.2021 21:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.05.2021 21:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mir.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 10.05.2021 21:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
English, 10.05.2021 21:40
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/User.png)
![question](/tpl/images/cats/istoriya.png)
History, 10.05.2021 21:40
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 10.05.2021 21:40