A spring is attached to a 2.3 kg mass and the system is set in motion. The spring constant is 30 N/m, find the period (T)

Multiply the 3 dimensions, assuming it is a rectangular cuboid, to get the volume in cm³ divide mass by volume to get density in g/cm³

Answerapplying a direct current to a non magnetic material in order to create a electromagnetic field; plz check first good luck;