Hooke's Law says that F=-kx where k is the spring constant measured in N/m (newtons per meter)
Amalgamating is the coating of zinc plate with mercury.
Answer:
A. Argon
Explanation:
It is a noble gas, a group which is not reactive.
Planetary Nebula are the outer layers of a star that are lost when the star changes from a red giant to a white dwarf. A star is a luminous globe of gas producing its own heat and light by nuclear reactions (nuclear fusion). They are born from nebulae and consist mostly of hydrogen and helium gas.
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