Recent content by SlothNast

Well I've determined it must be a convex mirror, for the upright and miniature image. I have drawn a few rays from the real 10 cm object to the 4 cm image, but I am not sure how to find the location of the mirror and its focal point from that.

Homework Statement "An object 10 cm tall is placed at the zero mark of a meter stick. A spherical mirror located at some point on the meter stick creates an image of the object that is upright, 4 cm tall, and located at the 42 cm mark of the meter stick. Where is the mirror located and what...

Homework Statement "Calculate the force of attraction between a K + and an O 2- ion whose centers are separated by a distance of 1.5 nm." Homework Equations F = [ k (Z1)(Z2) ] / r^2 The Attempt at a Solution Both valences are filled when K is a + charge and O is a 2-...

How is charge/mass ratio derived in this example?? Hello, I know there are many ways to derive an expression for "q/m", but I am having some troubles with this one. We are given: (1/2)mv^2 = qV (mass, velocity, charge, voltage) qvB = (mv^2) / r (charge...

Hi, I am currently signed up for the TAG at UCD. However, I noticed that in order to fulfill this agreement, I have to take the following courses next semester: modern physics / optics, diff eq, materials, and circuits/devices. Primarily, I am looking to be a mat. engineer major, maybe civil...

Please explain why I keep getting the "incorrect" moment about O Homework Statement on the xy plane (in mm), there is a 50 N force that travels from point A (-15 , -20) , to point B (40 , 10). The first part of this question asks to find the moment of this force about the origin using...