Recent content by Ron Burgundy

Homework Statement A 15.0 g bullet is fired at 456.1 m/s into a solid cylinder of mass 21.1 kg and a radius 0.31 m. The cylinder is initially at rest and is mounted on fixed vertical axis that runs through it's center of mass. The line of motion of the bullet is perpendicular to the axle and...

That doesn't really make sense to me. Are you saying I should take the integral from infinity to .0231 m using \frac{kq}{r^2} for the electric field and then add the integral from .0231 m to .0145 m using \frac{kqr}{R^3}? That doesn't produce the right answer. However, using the integral from 0...

Homework Statement A nonconducting sphere has radius R=2.31 cm and uniformly distributed charge q=+3.50 fC. Take the electric potential at the sphere's center to be V0=0. What is V at radial distance r = 1.45cm? Homework Equations E= \frac{kqr}{R^3} \DeltaV=-\intE*ds The Attempt...

Homework Statement The electric potential in a certain region of space is given by V(x,y,z) = αxy + β, in units of volts, where α = 3.29 V/m2 and β = 6.38 V are constants. What is the x-component of the electric field at a point P = (4.50, 5.00, 4.50), where the coordinates are given in...