Charlie d. matiscool is a college student living at home with his mom. he is not married and he has no children. charlie just started a new job working at the campus information desk which is his only job. he needs to fill out his w-4 form. charlie's social security number is xxx-xx-1234. what is charlie's filing status? what are the number of allowances charlie would have

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?