Two springs with spring constants k1 and k2 are connected together. with mass m1 attached, the springs have
lengths d1 and d2. increasing the pull mass to m2 stretches the
springs a distance x1 and x2 for a total stretch of x. derive an
equation for the effective force constant ke of the two spring in
series. (hint: the stretching force f is the same for both springs.)
what is ke when k1 = k2? does the k of a spring depend on the
length of the coiled spring?

just did the assignment and the answer was #1 +2 n

answer is: naturally occurring solid, inorganic compound or element is mineral.

minerals usually have crystalline form, that means than crystal constituents (atoms, molecules or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions.

for example magnetite is a mineral of iron oxide (fe₂o₃).

calcite is a carbonate mineral and the most stable polymorph of calcium carbonate (caco₃).

dolomite is an   carbonate mineral composed of calcium magnesium carbonate (camg(co₃)₂).