In the following problem, I am having trouble understanding the components.
- The image of a man just covers the length of a 5cm plane mirror when the mirror is held vertically 30cm from the eye. The tree is 100m from the mirror. What is the height?
* To find the height you would use hi/ho...
Right, so summing up the moments from the center would say you would have to put the weight on Pan B the same distance from the center as the weight on Pan A.
The questions makes it seem like their are more than one position that the weight can be placed on Pan B to balance the system. Am I...
Static Equilibrium?
Summing the moments up from around the center, it is easy to find the intuitive location for the weight at B which would be the same as the A side. But how are there more locations to make this system balance??
Another good ebook is by Texas Instruments. About 400 pages long and has everything you would ever need to know about op amps. But I agree, read the books and don't go bookless.
http://focus.ti.com/lit/an/slod006b/slod006b.pdf
Need to see if I worked this right.
Hot air balloon floating in air has at 0 degrees C ( desnsity = 1.293kg/m^3). The mass of the balloon and passengers is 1650kg. If they want to stay at a constant height, estimate the required average temperature of the air in the balloon. Assume the volume...
here is a link to a picture of the problem I am describing.
http://www.uvm.edu/~dahammon/demonstrations/balancingbelt.html
If I could get a correct Free body diagram for it, I think I would understand it.
- You should have a force acting upward from the table to the tip of the "belt...
I am trying to understand the math for this problem. My instructor did a poor job of explaining it in class.
He took a "skyhook" or belt hanger ( looks like a music note make out of wood)" put a stiff belt on it and balanced it on the edge of a table. He exaplained that the center of gravity...