Aparticle's velocity is described by the function vx = kt 2 m/s, where k is a constant and t is in s. the particle's position at t0 = 0 s is x0 = -9.0 m. at t1 = 3.0 s, the particle is at x1 = 9.0 m. determine the value of the constant k. be sure to include the proper units.

uio

explanation:

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.