Seudónimo Seudónimo
  • 22-03-2024
  • Chemistry
contestada

A rocket with initial mass of 7.39 × 10⁴
kg fires its engines at t = 0. The exhaust speed of the rocket is 4.0 × 10³ m/s. If the velocity of the rocket at t = 200 s is 8000 m/s, how much fuel did it consume?
A. 6.39 x 10⁹ kg
B. 2.26 x 10⁵ kg
C. 6.39 x 10⁴ kg
D. 9.51 x 10⁴ kg

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