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geoff is working in technology. he tries to undo a nut that is holding his project together, but it won't budge. he attaches an adjustable spanner...

geoff is working in technology. he tries to undo a nut that is holding his project together, but it won't budge. he attaches an adjustable spanner onto the shaft of the screwdriver he is using. the spanner is 15cm long and he pulls on it with a force of 20n a) what is the size of the moment he uses? what are the units?

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