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A spiral spring of actual length 20.0cm has a scale pen hanging freely in it's...

A spiral spring of actual length 20.0cm has a scale pen hanging freely in it's lowest end.When an object of mass 40g is placed in the pen it's length becomes 21.80cm.When the object is placed with another mass of 60g the length becomes 22.05cm.Calculate the mass of the scale pen?
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Asked by oluwatobi on 27th June, 2022
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WAEC offline past questions - with all answers and explanations in one app - Download for free
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995