![ansver](/tpl/images/cats/User.png)
Answers: 2
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:30
Can someone me find the original price? the discount is 5% and the sale price is $68.40
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 01:30
Agrasshopper weighs 0.89 grams. express the grasshopperās weight in scientific notation.
Answers: 3
You know the right answer?
The central angle of a minor arc is an acute angle....
Questions
![question](/tpl/images/cats/en.png)
English, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/mkx.png)
Arts, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/en.png)
English, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/istoriya.png)
History, 16.11.2020 23:00
![question](/tpl/images/cats/biologiya.png)
Biology, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/biologiya.png)
Biology, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00
![question](/tpl/images/cats/mat.png)
Mathematics, 16.11.2020 23:00