11. If the work function of the cathode metal is 3.0 eV, what is the least energy of the incident photon it could emit photoelectron?
a. 1.50 eV
b. 2.90 eV
c. 3.50 eV
d. 6.01 eV

On the galapagos islands charles studied finches

the simple machine has three main features. they are:

loadfulcrumeffort

fulcrum is the center point or pivot point of the machine. effort is input force/ applied force. load is external force/ output.

the keisha 's machine labels are

x : load

y: fulcrum

z: lever

Wind or electric energy force force of friction

The answer is water molecules are split.cellular respiration and photosynthesis are complement  reactions to each other. these are reverse reactions. in cellular respiration glucose and oxygen yield water and carbon dioxide. so, when respiration begins,  glucose molecules are split. in the opposite reaction - in photosynthesis, carbon dioxide and water yield glucose and oxygen. thus,  when respiration begins, water molecules are split.