What are the energy transformations in a garage door opener?

What is a zoning engineering invention? Who developed an algorithm? How do you delete an ith element in singly linked list? What visual distress signal is acceptable for night use only? If a cache can be made as large as the device for which it is caching for instance a cache as large as a disk why not make it that large and eliminate the device? How much does it cost to drill a well in southwest Missouri? What is the external voltage of a processor called? How do you specify the complete file path and extension in emu8086? Does a start capacitor control speed? Why is pex tubing color coded? What is a booststrap program? How many houses can one windmill power? Where did you first start pumping oil? What is the format specifire of data type BYTE? What is 8 factorial? Is it true that parallel circuits and series circuits have no similarity? How does the brightness of each bulb in a parallel circuit compare to the brightness of the bulb in a simple circuit? How do you calibrate the timing on a washing machine dial? Is Velcro waterproof? Can I use a 12v 18 amp battery and connect to a circuit that asks for 12v Static current 6mA Can I use resistors to lower the amps on the 12v 18amp battery or can I just connect it up?