Recent content by davidelete

Please explain more.

I need translational velocity.

Homework Statement A hollow cylinder with a mass of 1.2 kilograms and a diameter of .25 m rolls down an inclined plane angled at 35 degrees. What is its translational velocity at the bottom of the incline plane if the distance traveled is 3 meters?Homework Equations v=\sqrt{gh} ? The Attempt...

The strut by the pivot, I do believe, is the pole acting at the 45 degree angle. Could you please explain what forces those may be? I know that one must be Fw or Force of weight.

1. Find the tension in the guy wire and the force on the strut by the pivot. http://img16.imageshack.us/img16/382/tension.png Homework Equations I think Fwsin30 and Fwsin40 is applicable here to find tension.The Attempt at a Solution The information provided is EXTREMELY vague in my opinion...

Homework Statement A wire 3.0 cm long lies perpendicular to a magnetic field with a magnetic induction of 0.40 T. Calculate the force on the wire if the current is 5.0 A. What is the direction of force? Homework Equations F=BIL The Attempt at a Solution I found the force to be...

I wish I could.

Ah yes, quite a familiar problem. The workings should not be too hard. I believe that the equation is x/L=lambda/d, if I'm not mistaken, unless that is a predefined equation designated by your instructor specifically for this problem...

It is a plane mirror.

I am looking, not seeing too much in the way of any good diagrams. Ah, so 1.6 m.

Homework Statement A woman with a bow in the back of her hair is looking into a dresser mirror 1.0 meter away. She is holding a mirror 0.3 m behind her head so that she can see the bown in the dresser mirror. How far behind the dresser mirror is the image of the bow? Homework Equations...

Homework Statement Show that the mirror equation can be derived using the same principles that were used in deriving the equation for lenses. Homework Equations \frac{1}{f}=\frac{1}{d_{o}}+\frac{1}{d_{i}} The Attempt at a Solution There really doesn't appear to be any work to put...

Thank you. That was exactly what my best guess looked like as well. Some of the questions on these homeworks are outrageous. I wish they gave more information.

I suppose it is more of a best guess type of thing. What would your best guess be when drawing a light beam coming in? Where would it bounce to? Where would it exit?

That is truly everything. I would just have to assume 90 degrees based on the information given.