Answer: To be useful for most household applications, DC voltage is passed through a step-down transformer.
Explanation: Voltage coming through AC or DC outlets is typically far too high for most household appliances to handle, so the current is passed through a step-down transformer to reduce the voltage to a usable level.
Get a program for this perpose or perhaps get a new computer
Answer:
A software where you can document letters, essays or anything really.
Explanation:
the answer is 5,000 hours.
I recommend you post these kind of questions in the mathematics section
