In the velocity selector the electric field is 90,000V/m down and the magnetic field is 0.0053T into the page. An electron is shot through the velocity selector and then enters a region of a magnetic field that has a strength of 0.00242T into the page. If the radius of curvature of the electron is 4 cm . Calculate the mass of the electron.

Use the right-hand rule for magnetic force to determine the charge on the moving particle. this is a charge.

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?

An ascending elevator, hanging from a cable, is coming to a stop. part a part complete identify all forces acting on the elevator from the list below. select all that apply. select all that apply. kinetic friction normal force tension weight static friction submitprevious answers correct part b draw a free-body diagram of the object. draw the vectors starting at the black dot. the location and orientation of the vectors will be graded. the exact length of your vectors will not be graded but the relative length of one to the other will be graded.