An electron with a speed of 1.4 ×106m/s collides with an atom of element x. shortly afterward, the atom emits a 1240 nm photon. what was the electron's speed after the collision? assume that, because the atom is so much more massive than the electron, the recoil of the atom is negligible. hint: the energy of the photon is not the energy transferred to the atom in the collision.

How do hydroponic plants differ from nonhydroponic plants? a.) hydroponic plants can grow in a dryer soil. nonhydroponic plants grow in moist soil. b.) hydroponic plants grow on other plants and are known as air plants. nonhydroponic plants do not grow on other plants. c.) hydroponic plants can only grow in rain forests. nonhydroponic plants cannot grow in rain forests. d.) hydroponic plants are grown without soil. nonhydroponic plants are grown in soil.

Asample of a gaseous substance changes into liquid. this process is called (blank) and it takes place when heat is (blank) a gaseous system

Which articulations allow for greatest range of motion?