Why does range of motion need to be measured separately for each joint

State the right hand rule of the direction of magnetic field in a conductor carrying current

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?