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An instrumcnt to measure the acceler.ttion of gravity on Mars is constructed of a spring from which is suspendcd a mass of 0.40 kg. At a place on earth whcre thc local acceleration of gravity is 9.81 m s-2. thc spring cxtcnds 1.08 cm. Whcn the instnnTIcnt packagc is landed on Mars. it radios the information that the spring is extcnded 0.40 em. What is the Martian accelermion of gravity?

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