Thursday
November 27, 2014

Posts by Please Help!!!!!!!!!!!


Total # Posts: 4

Physics
A proton is launched from the surface of a 2.0 cm diameter glass sphere that is charged to -25.0 nC. What is the speed of the proton when it is launched so that it just escapes the influence of the charge of the glass sphere?
February 10, 2011

Physics
A 3.2 cm diameter plastic sphere is charged to -19.0 nC. What orbital frequency must a proton have to maintain a circular orbit around the sphere 2.4 mm above its surface?
February 10, 2011

Physics
Two 18.0 cm diameter charged rings face each other, 22.0 cm apart. The left ring is charged to + 40.0 nC and the right ring is charged to + 15.0 nC. What is the force on a + 0.50 nC charge placed at the mid point?
February 10, 2011

Physics
A proton orbits a negatively charged wire that has a linear charge density of 8.0 x 10 -9 C/m. What speed must the proton have to maintain a circular orbit at 1.3 cm?
February 10, 2011

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