The rate of diffusion of ions through the membrane of a nerve cell is proportional to the surface area of the membrane. Nerve cells are basically cylindrical in shape. If the rate of diffusion through the membrane of a cell with diameter dis R, the rate through the membrane of a cell of the same length but with diameter 2d will be

Gravity bc it’s gravity

Well the magnitude of its acceleration related to that car starts with the oil change like when you have to change the oil in your car you have to make sure that your precious car is starting really propley and very well

Answertraveling around a circular trackexplanation"traveling around a circular track" is the best answer as you could be traveling around a circular track at a constant speed. your velocity would therefore have the same magnitude but will always be constantly direction. since acceleration is the rate of change of velocity, the rate of change will only involve the direction of velocity and not the magnitude.wrong choices: "an object at rest" does not accelerate at all"increasing speed while traveling around a curve" means that the acceleration will not be constant due to only change in direction; it will be constant due to both magnitude and direction"an object in free fall" does not necessarily change direction