A rocket moving around the earth at height “H”, If the gravitational acceleration “g1“ at height "H" is 1/2 of gravitational acceleration “g“ at earth surface. If Earth radius is "R”, find “H”
using R

u=13

v=30

s/t=u+1\2at

=13+431/2

=13+265.5

=278.5

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.