Recent content by jdroidxw

Okay thank you! And what about the one sheet? Would I be correct in saying that it would not have any effect regardless of the angle?

Homework Statement Unpolarized light of intensity Io is incident on two polarizing sheets whose axes are perpendicular. A) what is the intensity of the light after the first sheet? B) what is the intensity of the light after the second sheet? Homework Equations I=(Imax)cos^2(Θ) The Attempt...

Homework Statement Optical lenses (n=1.40) in cameras are coated with a thin film of magnesium fluoride (n=1.38) to reduce reflections. What minimum thickness is required to give minimum reflection at a wavelength of 550 nm? Homework Equations 2nt = (lamda)/2 The Attempt at a...

Homework Statement Problem with picture attached I need help on 24. **24 is a continuation of 23 so use the same dimension except for the distance... Or you can go here http://college.cengage.com/mathematics/blackboard/content/larson/calc8e/calc8e_solution_main.html?CH=00&SECT=a&TYPE=se...

What is wrong with my angle calculation for vector C? I get the same angle. and the magnitudes doesn't match up on vector C

Homework Statement I'm given a table of vectors A, B, and C of mass, magnitude, direction, x component, and the y component. The weights of 3 masses will apply tensions to 3 cables on a force table, the object is in translational equilibrium. Given: Vector A: m=0.2, magnitude=?, direction 30...

B is wrong. If it was c+d you would minus them but you have the opposite: c-d so you add them. Same with CD) Add the horizontals first A+B (answer to part a). Then add the 10 m [u] to the horizontal. The answer (resultant) is the hypotenuse, construct a right triangle.

Where did you get the 2T' from?

Homework Statement What is the tension T? The pulley is massless and frictionless. m1=661 g, w2=5 N, g=9.8 m/s2 Picture attached Homework Equations T=w1+w2 ?? The Attempt at a Solution First of all, I converted 661 g into kg. Next I multiplied that by g. I added that value to...