A 13.7 kg load is pulled straight up by a massless rope from the ground to the roof of a building, at a constant acceleration of 0.81 m/s2 . During the upward motion, the tension in the rope is?

1. a net force of 100 newton’s is applied to a wagon for 5 seconds. this causes the wagon to undergo a change in momentum of

Anybody wanna ? (picture included? )

In a simplified model of the human eye, the aqueous and vitreous humors and the lens all have a refractive index of 1.40, and all the refraction occurs at the cornea, whose vertex is 2.60 cm from the retina. what should be the radius of curvature of the cornea such that the image of an object 40.0 cm from the cornea’s vertex is focused on the retina?