What is the quantity measured in newton seconds?

Explanation:

The newton-second (also newton second; symbol: N⋅s or N s)[1] is the derived SI unit of impulse. It is dimensionally equivalent to the momentum unit kilogram-metre per second (kg⋅m/s). One newton-second corresponds to a one-newton force applied for one second.

Newton-second

Impuls Masse Geschwindigkeit.svg

For two objects moving with the same velocity (v), the object with the greater mass (m) will have the greater momentum (p).

absorption lines are where light has been absorbed by the atom thus you see a dip in the spectrum whereas.

emission spectra have spikes in the spectra due to atoms releasing photons at those wavelengths.

explanation:

the amount of current in the coil