Delay what is the required mass ratio to achieve an exhaust velocity of 2.455 km/s with a specific impulse of 294 seconds? choose one. a. 2.34 b. 2.12 c.3.12 d.5.11 e. 4.33

Match your vocabulary word to its definition. 1. emigration 2. immigration 3. migration 4. overpopulation 5. sustainable development 6. under population 7. unsustainable development 8. urbanization the movement from one place to another the number of people exceeds the available natural resources in an area leaving one's homeland to settle in a new place the increase in the population of a city the movement of people to a new country the ability to meet current needs without reducing the ability to meet future needs resources being used up at a faster rate than they can be replenished birth rate insufficient to replace the existing population

The rwandan patriotic front and the interahamwe were a. relief agencies b. military groups c. political parties d. nonprofit organizations select the best answer from the choices provided. a b c d

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation