John is a new employee at international widget. having studied human relations, he's eager to understand the supervisory style employed by his immediate supervisor. which of the following is not especially important to john's insight?
a. his supervisor's flexibility on work guidelines
b. whether his supervisor enjoys particular sports or hobbies
c. the extent to which he (john) is expected to work independently
d. whether his supervisor is more concerned about short-term or long-term work goals

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?