Recent content by tbdm

This part wasn't actually done in lab, it was a set of postlab questions on webassign where we were supposed to think back to what happened in lab and apply it to these questions. I didn't have an oscilliscope to work with for it. We just started the RC circuits in lab today, I guess there's...

The biggest problem is that I have no knowledge about the math for oscilliscopes. This is a post lab but all we actually did was push a few buttons to record measurements, we did not go into any detail about the methods, just what an oscilliscope was supposed to measure. Homework Statement...

That makes sense, thank you so much for your help

I have, so the center of mass would be at .5 meters, or .28 meters from the balance point? And the other mass would be at .22 meters on the other side?

That was what I had wondered, I wasn't sure if I could treat it as a point mass, but I'm not sure how else to write it.

Homework Statement Suppose we take a 1 m long uniform bar and support it at the 22 cm mark. Hanging a 0.29 kg mass on the short end of the beam results in the system being in balance. Find the mass of the beam. Homework Equations \tau=F*r The Attempt at a Solution I set it up so that...

Haha yeah, I've always found it funny that my professors tell us to use sig figs, and yet use homework programs that not only don't count them, they sometimes think the answer is wrong if you do use them. Promotes bad habits :wink: Thank you all

Alright, it looks like I accidently switched the sign on the 1.6a when I was working it out. So that makes the tangential acceleration ≈6.842 m/s^2, and the angular acceleration is then 136.83 radians/s^2, does that sound right?

Homework Statement Consider a system of two masses joined by a massless string with the string passing over a massless frictionless pulley with a radius of 5.0 cm. The mass of the left is 9.00 kg and the mass on the right is 1.60 kg. Find the angular acceleration of the pulley when the...

Homework Statement To protect their young in the nest, peregrine falcons will fly into birds of prey (such as ravens) at high speed. In one such episode, a 560g falcon flying at 19.0m/s hit a 1.60kg raven flying at 9.0m/s . The falcon hit the raven at right angles to its original path and...

I finally tried using all of the significant figures, and that finally seemed to do it, thank you for your help!

Homework Statement You are given a pendulum composed of a 0.015 kg mass on the end of a 0.40 m long massless string. If the pendulum is moved 30° from the vertical and given an initial speed of 0.45 m/s tangent to the support string and away from the vertical, how much higher relative to the...