Recent content by zippeh

You're misunderstanding me. Since the ground is present, it allows for excessive positive charges to flow. This allows, when a circle is drawn enclosing the ring with the charge inside the ring, there will be a net charge of 0.

Sorry, that is what I meant to say with the potential. Anyways, to be more clear this is the setup of the experiment. We had a metal ring that was screwed to a carbon sheet of paper with wing nuts and screws. Then a screw and wing nut was placed inside the metal ring, but it was not centered...

So I am extremely confused at the moment. We had a hollow ring in physics lab today. There was a positive charge (30V) inside the sphere that was no centered and then the ground was attached to the ring itself (0 V). So, I understand that the negative charges unevenly distribute to cancel the...

Homework Statement You pull a simple pendulum of length 0.260m to the side through an angle of 3.50∘ and release it. Part A: How much time does it take the pendulum bob to reach its highest speed? Part B: How much time does it take if the pendulum is released at an angle of 1.75∘ instead of...

Simon Bridge, the problem calls to evaluate the forces when the climber is just sitting on the cliff. I actually used to rappel and if you rest, you would be rappelling without movement, as you would still be connected to your equipment and such, but just not moving. But none the less, we did a...

Homework Statement Suppose that the climber has mass m, has a center of gravity at a distance L1 from her feet, and holds the rope at a distance L2 from her feet. The climber rappels down a vertical cliff with her body raised θ1 above the horizontal. The rope makes an angle θ2 with the cliff...

Homework Statement Let’s have one box, one pulley, and one rolling cylinder. Each of them have mass M, the pulley’s radius is R, and the cylinder’s radius is 2R. Consider the cylinder to be rotating about its center of mass. (a) Draw correct and complete free-body diagrams. (b) Give the...

So I know this is an old thread, but possibly someone could help me because I have the same exact problem. I kind of understand the previous posts, yet, I am confused. In order to find the maximum height, which is not the height of the ramp, I would have to first find the value of the final...

That doesn't really help me, could you explain more in depth please?

Homework Statement A canoe has a velocity of 0.360m/s southeast (at 315°) relative to the earth. The canoe is on a river that is flowing at 0.580m/s east relative to the earth. Find the magnitude of the velocity v⃗ c/r of the canoe relative to the river. Homework Equations...

Oh wow... thanks! I was looking through the equations that I know, and I couldn't arrive at the answer with anything that I had (so I thought). I immediately looked for an equation that looked similar to the answer, which was what I gave above. Thanks for making it clear, I didn't really ever...

Homework Statement A man is running at speed c (much less than the speed of light) to catch a bus already at a stop. At t=0, when he is a distance b from the door to the bus, the bus starts moving with the positive acceleration a. Use a coordinate system with x=0 at the door of the stopped...