A 155-Newton horizontal force is exerted upon a 3.2-kg box to move it across a level surface at a constant velocity of 1.6 m/s. The force of friction encountered by the box is Newton.

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

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?

Which is not an example of how an object gains elastic potential energy by stretching? a. jumping on a pogo stick b. pulling on a rubber band c. jumping on a trampoline