(a) what is the condition on operator so that it is hermitian? (b) lf q is hermitian show that (ψ i q ψ) is real, for any ψ.belongs to hilbert space. (c) is the eigenvalue λ of the hermitian operator q real? prove your answer. (d) if q ψ'n = 5 and q ψ'm = 5 ψ'm, show that ψ are orthogonal.

Scout feels ill one day before school. her mother puts a thermometer in her mouth and the temperature begins to climb to 100°f. what is happening between the cooler thermometer and scout's body? a) scout's body is applying a force to the particles in the thermometer. b) kinetic energy is being transferred from her mouth to the thermometer. c) potential energy is being lost by the thermometer and gained by scout's body. d) the potential energy stored in foods is converted to mechanical energy to raise the mercury in the thermometer.

Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.

Explain what will happen if decomposers were apsent from a forest ecoysystem.