What is the frequency of radiation emitted by a photon of light if the energy released during its transition to ground state is 3.611 × 10-15 joules? (planck's constant is 6.626 × 10-34 joule seconds)
5.50 × 10-11 hz
2.39 × 10-50 hz
5.45 × 1018 hz
1.633 × 1027 hz

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge

Awalk up the phase change graph worksheet

Two rigid transformations are used to map δhjk to δlmn. the first is a translation of vertex h to vertex l. what is the second transformation? a reflection across the line containing hk a rotation about point h a reflection across the line containing hj a rotation about point k