/sci/ - Science & Math

>>11606113
>>11606109
play with https://www.desmos.com/calculator/h4ripl23eh

>>11571280
Looks good. There's no unreacted H or O and no new water is produced, so no.
>>11571287
>I draw two separate beams by separating at the hinge like
What? Don't do that. What you can do is treat the distributed load as a point load acting at the geometric center of the whole beam. This gives 200*20=4000 pounds acting at 10 feet from the left end. Static equilibrium gives:
>moment about hinge
[math] 5\cdot700-4\cdot1500-5\cdot4000+15R_y=0 [/math]. Solve for the reaction at the roller. Then sum the vertical forces, equate to zero, and solve for the vertical reaction at the hinge. The horizontal and moment reactions are trivially zero.
>>11569463
Replace the right lens with something concave and you get a Galilean telescope. No image flipping involved.