Using the Bohr theory, calculate the radius of the first excited state orbit of the Hydrogen atom (Z=1).

Choose each of the settings that follow and list them below do it ill mark brainliest first object= position= speed= acceleration= second object= position= speed= acceleration=

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

Which of the following situations is impossible? a) an object has velocity directed east and acceleration directed east. b) an object has zero velocity but non-zero acceleration. c) an object has constant non-zero velocity and changing acceleration. d) an object has velocity directed east and acceleration directed west. e) an object has constant non-zero acceleration and changing velocity.