A 1.5 kg object is hanging from a spring with a spring constant of 15 N/m on Earth. What is the period of its up-and-down motion? 1.) 0.10 s

2.) 0.31 s

3.) 2.0 s

4.) 2.5 s

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.

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.

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