SM/LAN which would demonstrate that there is a Cisco Internal Services Module or a remote LAN card. LAN interfaces the PC equipment in a confined territory, for example, an office or home. Normally, LANs utilize wired associations with connect the PCs to each other and to an assortment of fringe gadgets, for example, printers. LAN clients can speak with each other by talk or email.
The period of the pendulum doesn't determine the length of the string. It's the other way around.
The period of the pendulum is proportional to the square root of its length. So if you want to triple the period, you have to make the string nine times as long as it is now.