Please help i do not understand
...
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Physics
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 00:00
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
Answers: 1
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:00
A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?
Answers: 2
![question](/tpl/images/cats/fizika.png)
Physics, 22.06.2019 15:20
Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.
Answers: 3
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 16.02.2021 20:20
![question](/tpl/images/cats/en.png)
English, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
History, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.02.2021 20:20
![question](/tpl/images/cats/biologiya.png)
Biology, 16.02.2021 20:20
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/informatica.png)
Computers and Technology, 16.02.2021 20:20