Recent content by AgentRedfield

I was able to figure it out. Thank you!

Homework Statement A solid glass cube with edge length of 10.0 mm and index of refraction n=1.75 has a small, dark spot dead center of the cube. Find the minimum radius of black paper circles that could be pasted at the center of each cube face to prevent the center spot from being seen, no...

Since I'm saying acceleration is only in the x-direction then the ##r## should be ##Rsinθ## because that is the x-component of ##r##. My Work: y: ##N \cos \theta = mg## ##N=\frac{mg}{\cos \theta}## x: ##N \sin \theta = \frac{mv^2}{r} = \frac{mv^2}{R\sin \theta}## ##N = \frac{mv^2}{R}##...

Is it not radius? edit: Would it be r*sin(theta), where r is 0.15 m?

I think I'm not understanding some conceptual part of rotational kinematics because all the questions seem connected. I want to figure it out as best I can so please don't solve it but any hints in the right direction would be really appreciated, thanks! The Question: A stiff piece of wire is...

Homework Statement A golf ball is struck by a golf club at 55 m/s at an angle of 28.0° above the horizontal. The mass of the ball is 45 grams and is in contact with the golf club for 15 ms. Calculate the average force exerted on the ball by the club.Homework Equations pi + FΔt = pf p = mΔv a...

Ok, I figured out part c. I was using the velocity solution I found in part a not the velocity equation in part b. The answer is ##h=\frac{5}{2}## Thanks Everyone! :smile:

I'd just like to thank everyone again for your awesome help. So everything I've got nailed down except... Part c: The relevant equation is ##mgh+\frac{1}{2}mv^2 = mgh+\frac{1}{2}mv^2## Now the cart must reach point c which is at the height 2R. Logically to reach this point of potential...

Thanks for the welcome, so I know that ##mgh+\frac{1}{2}mv^2 = mgh+\frac{1}{2}mv^2## I just forgot to write it all out because I've never used this latex syntax thing before and got distracted by it. Anyway that is what I used for part a, did I do that correctly? For b I just realized...

Homework Statement A small car of mass m is released at height h on a steel track. The car rolls down the track and through a loop of radius R. At the end of the track, the car rolls off the track, which is positioned at a height H above the floor. Neglect friction and the small amount of...