Aconstant force = 2.00 n + 3.00 n acts on a 5.00 kg object as it moves in a straight line from the position1 = 1.00 m + 1.00 m to a position 2 = 4.00 m - 1.00 m . determine the work done by the force during this motion.

force acting on the object is given as

initial and final positions are given as

now the displacement is given as

now the work done is given as

so there is no work done

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

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