4. calculate the specific heat for a 20 g piece of metal if 30 j of energy is
required to raise its temperature by 12,5 k.
a. 0.12 j/kg •k
c. 120 j/kg. k
b. 7.5 j/kg . k
d. 48 kj/kg. k

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human-caused climate hope this

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.