Can you draw a line on the surface of a sphere which lies wholly on it?

Volume and surface area of sphere

Inside a uniformly accelerating thin-walled spherical shell of radius R which is rolling on horizontal surface there is a small body slipping around Angle of friction between body and inner surface of sphere is 23^(@) which of the following can be the acceleration a of the center of sphere to ensure that the small body stays at R//2 distance from the surface?

Use the figure to name: line on which O lies

The volume of a sphere is changing @ 100 cc/min. The rate at which the surface area of the sphere is changing when the radius of the sphere = 10 cm, is

Imagine a short doiploe at the center of a spherical surface. If the magnitude of the electric field at a certain point on the surface of he sphere is 10NC^(_1) then which of the following cannot be the magnitude of the electric field anywhere on the surface of the sphere?

Surface area of Sphere and Hemisphere

In each of the following cases,state whether you can draw line segments on the given surfaces: The face of a cuboid.The surface of an egg or apple.The curved surface of a cylinder.The curved surface of a cone.The base of a cone.