Consider the two metabolic reactions below:

reaction 1: a + b → c δg˚ = 8.8 kj/mol

reaction 2: c → d δg˚ = -15.5 kj/mol

if reaction 1 and 2 are coupled, what would the net reaction be?
choose one:
a. a + b + c → d
b. a → d
c. a + b → c + d
d. a + b → d

the net reaction would have δg˚ =

kj/mol.

If the work required to stretch a spring 3 ft beyond its natural length is 15 ft-lb, how much work is needed to stretch it 27 in. beyond its natural length?

Adolphin emits ultrasound at 100khz and uses the timing of reflections to determine the position of objects in the water. part a what is the wavelength of this ultrasound? assume that temperature of water is 20 degrees c. answer in cm

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