What is the acceleration due to gravity on another planet if the potential energy of an object on that planet is 600 J, the mass of that object is 2 kg, and the height of that object is 3 meters?

g = 66.7 ms^-2 (3 s.f.)

Explanation:

Potential Energy -> PE

m -> mass

g -> acceleration due to gravity

h -> height

using the formula, PE = mgh

600 = 3 × g × 3

9g = 600

g = 600/9

g = 66.666

g = 66.7 ms^-2 (3 significant figures)

the answer that best describes the relative refractory period in the neuron is the resting membrane potential is restored, but concentrations of sodium and potassium are not restored to their original state.

the refractory period is the time during which another stimulus given to the neuron will not lead to a second potential. thus, because na+ channels are inactivated during this time, additional depolarizing stimuli do not lead to new action potentials.  

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