Consider an Ethernet based protocol with the following parameters. The network bandwidth is 100 Mbps. The signal propagation is the speed of light (3x10^8 m/s). There are 1000 contention slots per frame. For a conservative estimate, the frames are as long as they can possibly be with 802.3 (1572 bytes). A 95% channel efficiency is desired. What is the maximum length of a cable with this protocol? Give the answer in meters.