1. ### Gauss' Law AP Problem

1 A solid metal sphere of radius R has charge +2Q. A hollow spherical shell of radius 3R placed concentric with the first sphere has net charge -Q. a) Describe the electric field lines both inside and outside the spheres. b) Use Gauss' law to find an expression for the magnitude of the...
2. ### Dynamics Laminar Flow Problem

Problem: Two horses pull a barge from rest in a canal filled with a viscous fluid that provides laminar resistance (FR = –kv). The two horses walk on each side of the canal so that their net force is applied exactly forward. The barge has a mass of 3000 kg and the donkeys pull forward with a...
3. ### Dynamics Laminar Flow Problem

Problem: Two horses pull a barge from rest in a canal filled with a viscous fluid that provides laminar resistance (FR = –kv). The two horses walk on each side of the canal so that their net force is applied exactly forward. The barge has a mass of 3000 kg and the donkeys pull forward with a...
4. ### Galileo's circle

Why is it that if you have a circle. If you put any rod from the top center of the circle to any other point on the circle (this would be defined as a chord), then why, if the bead starts at the top, is the time required to slide down any chord independent of the particular chord chosen? I...
5. ### Dynamics/Kinematics of Particles Help

[SOLVED] Dynamics/Kinematics of Particles Help Thanks 2 Tesla... SOLVED :)