Which of the following is true for all exergonic reactions? a. the reaction goes only in a forward direction: all reactants will be converted to products, but no products will be converted to reactants. b. the reaction proceeds with a net release of free energy. c. a net input of energy from the surroundings is required for the reactions to proceed. d. the products have more total energy than the reactants. e. the reactions are rapid.

Which of the following represents an upside-down image? o a. +doo b. -doo c. +mo d.-m

Suppose that two tanks, 1 and 2, each with a large opening at the top, contain different liquids. a small hole is made in the side of each tank at the same depth 1.57 m below the liquid surface, but the hole in tank 2 has 2.49 times the cross-sectional area of the hole in tank 1. (a) what is the ratio ρ1/ρ2 of the densities of the liquids if the mass flow rate is the same for the two holes? (b) what is the ratio rv1/rv2 of the volume flow rates from the two tanks? (c) at one instant, the liquid in tank 1 is 14.9 cm above the hole. if the tanks are to have equal volume flow rates, what height above the hole must the liquid in tank 2 be just then?

Wavelength,frequency,and energy are related.what happens to a wave as it’s wavelength gets shorter?