如图,机械秒表的读数为___s;电子秒表的读数为9min___s.
问题描述:
如图,机械秒表的读数为___s;电子秒表的读数为9min___s.
答
①小盘的分度值是0.5min,指针在5min和6min之间,靠近6min;大盘的分度值是0.1s,由于分针靠近6min,故秒针示数为37.5s,因此秒表读数为5min37.5s=337.7s. ②电子秒表显示时间的格式是:00:00:00,即9min33.12s. 故答案为:337.5;33.12;