Hydrogen atoms in states of high quantum number have been created in the laboratory and observed in space. They are called Rydberg atoms.

Options

A. The maximum acceleration that painter can have upwards is `5m//s^(2)`
B. To hoist himself up, rope B must withstand minimum `400N` force.
C. Rope A will have a tension of `100N` when the painter is at rest.
D. The painter must exert a fore of `200N` on the rope A to go downwards slowly.