Number 10.22 . Please help me

10.22. Calculate the gravitation potential and the gravitational field intensity due to a thin circular ring of mass M and radius R for a point P on the Z-axis at right angles to the plane of the disk, as shown in Fig. P10.22. Assume z> R, and expand the expression for the potential, keeping terms only in graphs. the second order in R/z. Graph V(z) and g(z). dan itensi as gra ui lasi i. ZA Mihunglah poten1oL pada tihu P sumbu z began Yor mas se M ,R P asumauan z>R, dim lums bdang. benhiu dan nyatakan P/2, M yyeiph G). VCZ) dan Figure P10.22