Recent content by jst81161

Homework Statement An object is located 2 m away from a convex mirror with radius of curvature of 1 m. (a) Draw the ray trace diagram (observe scale!) and use that to deduce where the image occurs (b) What is the distance between the image and the mirror? (c) Strike out that which is...

Homework Statement Explain why for a given object screen distance there are two positions where the image is in focus. Is this always true? Homework Equations The Attempt at a Solution

Homework Statement Why do two outer rays converge to a different focal point than the inner rays? Homework Equations The Attempt at a Solution The distance to the focal point of the inner rays is shorter than the outer rays, the light has to bend a lot more for the outer rays

Homework Statement a focal length of 7.3cm for a double concave lens, find the index of refraction using lensmaker law and the radius which can be found using the following equations. Homework Equations focal length is 7.3 find radius focal length x 2=radius. Lens maker formula...

Homework Statement The 2-cm (radius) current loop shown in the figure is changing from θ1 = 11 degrees to θ2 = 66 degrees in a magnetic field 2 T in 0.5 seconds. What is the magnitude of the induced emf to the nearest hundredth of a millivolt. The wire in Problem 2 has a thickness of 1.04...

Homework Statement A square loop with resistance 15 ohms is placed perpendicular to a time varying magnetic field; the loop is 8.2 cm. The magnetic field is changing with a rate of 3.4 x 10^-7 T/s. -Draw the loop, magnetic field, and current in the diagram -calculate the rate at which the...

Was wondering if anyone is familiar with lorenzt force? Here is the problems whatever help you can give that would be great thank you in advance. Does anyone know a good site to practice these types of problems Homework Statement An electron is moving initially in the +x direction in a...

I was wondering if anyone could give me information the base of cross product all the problems I have been reading about so far have been in real depth I need to understand the basics first the problems given here are the beginning, if anyone can give me any help please do so, and thank you in...

The Wick Effect HI, I was just wondering regarding spontaneous human combustion, if anyone would know any home experiments to test the wick effect or any means of testing it, on our own in a lab. If anyone knows any information on this please email me at Jonathan.tan@csun.edu your help is...