Recent content by ParrotPete

First the entire system has kinetic energy (m_1+m_2)*v_final^2/2 This is then converted to gravitational potential energy.

Because the bullet embeds itself in the block of wood.

Homework Statement A bullet of mass m_{1} with initial horizontal speed v_{0} hits a wooden block of mass m_{2} initially at rest on an incline of angle β and embeds itself into the wooden block, how far up the incline will the bullet and block travel? Homework Equations \bar{P}_{initial} =...

Homework Statement A body consisting of two spheres attached by a 10 meter solid long rod is rolling down a 45 degree incline at one end while rolling up a 45 degree incline on the other end. At the instant when the connecting rod is horizontal the sphere rolling down has the velocity 2 m/s...

Homework Statement Given an electron with total energy 1 KeV, determine it's deBroigle wavelength. Homework Equations E^2 = (mc^2)^2+(pc)^2 \lambda = \frac{h}{p} The Attempt at a Solution (pc)^2 = E^2 - (mc^2)^2 <> p = ± \frac{1}{c} \sqrt{E^2-(mc^2)^2} What am I doing...