ONE QUESTION, ONE STEP
ZX-78EAB5D8862026年9月美国A卷 · 第 16 题
2026年9月美国A卷 · 原库模块 2 · Q16 参考答案
Before liftoff, one of a space shuttle’s solid rocket boosters contained 496,000 kilograms (kg) of propellant. Exactly 22 seconds after liftoff, 386,066 kg of this propellant remained. On average, approximately how much propellant, in kg, did this solid rocket booster burn each second after liftoff?
参考答案：
解题思路
容易忽略的一步
