Suppose 2A and ZB are complementary angles and mA = (2-5) and mZB = (2x + 20) Solve for x and then find m ZA and m/B. mZA = 65° and mZB = 25°
mZA -20° and mZB = 70°
mZA - 119° and m B = 61°
OmZA - 71° and m ZB = 19°
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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?