Many biological systems are well-described by the laws of statistical physics. a simple yet often powerful approach is to think of a system as having only two states. for example, an ion channel may be open or closed. in this problem, consider a simple model of membrane channels for ions: the system is described by a boltzmann distribution with only two states, with energies ε1 (open) and ε2 (closed). assume the "open" state is the state of higher energy, so that ε1 > ε2.

Which units can be used to measure length or distance? check all that apply. gram meter kilometer liter inch

Determine the maximum r-value of the polar equation r =3+3 cos 0

Two horses begin at rest. after a few seconds, horse a is traveling with a velocity of 10 m/s west, while horse b is traveling with a velocity of 13 m/s west. which horse had a greater acceleration? a. horse a because its change in velocity was greater than horse b's in the same time. b. horse b because its change in velocity was greater than horse a's in the same time. c. horse b because its change in velocity was the same as horse a's, but it took less time. d. both horses had the same acceleration.