A resistor has a resistance of 50 Ohms. If a 9V battery is connected to it, how much current flows in the wire? Remember to show all your working out.

Give your answer a unit.

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

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conservation of mass

mass before something happens = mass afterwards