<span>Some cars are 100 percent efficient at converting energy from gasoline to energy of motion.
This is a false statement.
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The three fundamental principles underlying the use of mnemonics are imagination, association and location
The Information Age<span> (also known as the Computer </span>Age<span>, Digital </span>Age, or New Media Age<span>) is a period in human history characterized by the shift from traditional industry that the Industrial Revolution brought through industrialization, to an economy based on </span>information<span> computerization.</span>
The two devices in a computer that should be considered "black boxes," and should never be opened due to risks involving charged capacitors are MONITOR and POWER SUPPLY.
Explanation:
- Physical contact or close proximity to the open power supply caused a discharge from the capacitor that resulted in an electric shock. Capacitors can discharge current even when not energized because they hold a charge for some time after the power is turned off.
- To do harm to your body, the voltage across the capacitor's terminals must be high enough to cause a harmful effect on you. There are no hard rules for at what voltage things become harmful, but a common 'rule of thumb' is that DC up to 48 Volt is considered low voltage. So a capacitor charged to a voltage below 48 V is fairly safe.
- A charged capacitor can be very dangerous, so it's important that you avoid coming into contact with the terminals at all times.