Solve the answer and show your work so a 747 boejing jet flying from new york city to hong kong can carry about 160 passengers. the plane travels at an average speed of 715 mph. the distance from new york to hong kong is 8,054 miles. how long is the flight from new york to hong kong? choose the equation that would solve this problem is it a. 715 divided by 8,054 or b. 8,054 x 715 or c. 8,054 divided by 715 or d. 715 x 160

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?