Text books often show the nucleus of a gold atom to be about 1.5 cm in diameter, with the nearest electrons about 4 cm from the centre of the nucleus.
In reality, the diameter of the nucleus is about 10-15 m and the diameter of the
atom is about 10-10 m.
If a textbook was drawn to scale, how wide would a page be to correctly
accommodate the artwork?

Plss anybody know how to do this? ? i need the answers from a through d

Calculate the capacitance of a system that stores 2.0 x 10^-10c of charge at 100.0 v. use c=q/v. a. 2.0 x 10^-12 f b. 2.0 x 10^-8 f c. 5.0 x 10^11 f d. 5.0 x 10^7 f

Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants