Recent content by Zokudu

Homework Statement What is the electric force between a glass ball with 3.5 µC of charge and a rubber ball with -5.0 µC of charge when they are separated by 5 cm? Homework Equations Colombs Law: F(electric)=K((q(1)*q(2))/r^2) K=8.99E9 The Attempt at a Solution This seems like a...

1/2Iω^2=Rotational KE I=mr^2 I=3*(1.6)^2 I=7.68 1/2(7.68)(5.6)^2=120.422+120.422 for the KE solve for an h of 8.193 divide by sin(18) and got 26.514 OOO i figured it out it does have both. Thank you soo much I've been stressing over this problem forever

Oops my fault wrong words i guess =/ and i ment ω not α I'm sorry. I'm not very good at physics :D Well rotational inertia of a hoop=mr^2 correct? well that makes more sense then so the total kinetic energy of the hoop is 120.422 so then i need to solve for the potential energy to get...

[SOLVED] Rotational Momentum This is my first attempt at asking a question on here so please be gentle. I've been working on this problem for almost an hour and a half Homework Statement In a circus performance, a large 3.0 kg hoop with a radius of 1.6 m rolls without slipping. If the...