已知：金属管长884m,两声相隔2.43s声音在空气中的传播速度为V=340m/s求：声音在金属管内传播速度是多少∴声速为340m/st=s/v=884m/340m/s=2.6s2.6s-2.43s=0.17sv=s/t=884m/0.17s=5200m/s答：声音在金属管内传播速度是...