The length and diameter of a uniformly charged cylindrical shell are 4.50 m and 0.165 m, respectively. What net charge on the surface of the cylindrical shell will produce an electric field of 4.95 ✕ 104 N/C at a radial distance of 22.0 cm from the axis of the cylinder?

where are the vectors ?

earth's neighboring galaxy, the andromeda galaxy, is a distance of 2.54×107 light-years from earth. if the lifetime of a human is taken to be 70.0 years, a spaceship would need to achieve some minimum speed min to deliver a living human being to this galaxy.