When is the kinetic energy of an electron transformed into potential energy? when it interacts with other electrons, decreasing its speed
when it interacts with neutrons without changing its speed
when it interacts with other electrons without changing its speed
when it interacts with neutrons, increasing its speed

Phase changes are chemical changes. true or false

Why do different substances have diffrent properties

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction