Recent content by wootman23

Homework Statement Two charges of equal magnitude Q are held a distance d apart. Consider only points on the line passing through both charges. If the two charges have the same sign, find the location of all points (if there are any) at which the potential (relative to infinity) is zero. a)...

So then the only forces that exert torque are W[table], W[vase], and F[x]. I've always used a pivot point for torque, but what I think you are getting at is that you can use a "pivot axis" in about the same way, so... (F[x] * Lx) - (W[table] * Lx/2) - (W[vase] * X) = 0 F[x] =...

Still not seeing it. Don't I need to choose a pivot point to find Torque? If I choose this pivot point to be at (0,0) then I don't need to worry about the force of the leg at (0,0)? Is that what you want me to see?

Homework Statement The top view of a table, with weight Wt, is shown in the figure. (Figure 1) The table has lost the leg at (Lx, Ly), in the upper right corner of the diagram, and is in danger of tipping over. Company is about to arrive, so the host tries to stabilize the table by placing a...

Yup, you were right! Thank you for the explanation and confirmation!

Ohhh so since the long, heavy bean bag isn't spinning as its dropped onto the guy's lap, it will will require some angular inertia to get it to spin...and to do this, it "steals" some angular speed from the guy which causes him to slow down? Do I have that right?

Ohhh so since the long, heavy bean bag isn't spinning as its dropped onto the guy's lap, it will will require some angular inertia to get it to spin...and to do this, it "steals" some angular speed from the guy which causes him to slow down? Do I have that right?

Homework Statement A guy is spinning on a chair with his hands at rest on his lap. As he is spinning, a large mass drops into his hands/lap. Does the guy continue spinning at the same rate, a slower rate, or a faster rate? This video demonstrates what happens when the guy drops mass...

I don't think I need to be precise because this is just a concept question. No actual measurements are given. I have no idea for the find the angular momentum of the guy on the chair either before of after the bean bag is dropped on him. If we are being precise, then the moment of inertia...

Well the question says the mass is a bean bag...so maybe its spherical? And it falls in his lap which in basically on the axis of rotation so it doesn't provide any torque. So, I'm thinking the speed stays the same, but the equation doesn't support that. L = Iω = m(r^2)ω If the mass...

Homework Statement A guy is spinning on a chair with his hands at rest on his lap. As he is spinning, a large mass drops into his hands/lap. Does the guy continue spinning at the same rate, a slower rate, or a faster rate? Homework Equations L = Iω = m(r^2)ω The Attempt at a...

Thanks for the reply Hertz. Maybe I described the scenario/question wrong, because your answer was incorrect. =( They spin at the same rate. Here is their explanation: By doubling the mass but keeping the velocities unchanged, we doubled the angular momentum of the two-puck system...

Homework Statement For an assignment, I was shown a video where two identical pucks were launched at each other. They were not spinning when launched. They had Velcro on their edges so they stuck to each other when they collided. They hit off-center from each other. Due to conservation of...