Recent content by Bob K99

I suggest you watch a YouTube video given by Ann McNeil at University of Michigan titled "Why I'm talking less" She is professor of chemistry and has been getting incredible results with a new teaching approach. I wish I had her for freshman chemistry back in the day.

Hello, Well I'm really interested quantum physics but I'm afraid that I do not have enough mathematics to really comprehend it . I have just enough to be dangerous.

Thanks to gneill I think I figured the problem out Since we have similar triangles the sides are proportional ( see his diagram above) T2 = (mg)2 + (mv2)2 / r2 Law of right triangles T2 - m2 g2 = m2 v4 / r2 Eq 2 Similar triangles r/ mv2 /r =L /T this simplifies to R2 /mv2 = L/T...

Yes, you are right about r and L not being equal I will try your suggestion and keep working on it. Thanks

Okay I will try to use the menu bar. I had to make some assumptions in my solution and my high school algebra and trig are a bit rusty so bear with me I formed a right triangle with the ball and string. The hypotenuse is T ( tension of string ) , the vertical leg of the right triangle is the...

Homework Statement A ball whirling on the end of a string, length L Maximum tension in string before it breaks: T sub break Find an equation for the maximum speed of the ball , V sub max, in terms of the ball's mass, M, the breaking tension T sub break, and the gravitational acceleration g...

Hello to All