How do you do these questions?

A) Is the pole

B can be described with any symbol and quantity you prefer.

iii) The quantities are measured in the weight of the item(s) in the cart that slow the acceleration and keep momentum.

C) Vertical Axis: Force (N.)    Horizontal Axis: Period (s)

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:

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.