Aparticle (mass = 0.168 kg) moves along an x-axis. its position is described by the equation x(t) = -10.8 + 2.21t + 4.36t^2 + -3.47t^3 (with x in m and t in seconds).
find the net force acting on the particle at time t = 3.59 s. this value, in n, should be the number to multiply the unit vector i to correctly specify the force vector.

answer: the correct answer for the fill in the blank is rods.

rods are the specialized photoreceptor cells that are present in the retina of human eye. they are responsible for vision in the night time ( also called scotopic vision). they have very low visual acuity and color distinguishing ability.

as they are responsible for vision in night time, therefore they are found predominantly in the nocturnal animals.