Recent content by patricks

Hey everybody. If I have a moving plane reflector with incident planar e&m waves, there is a Doppler shift in the reflected e&m wave, correct? So if the reflector is moving in the direction of the wave propagation, then the reflected waves are lower frequency then the incident waves...

Given two systems in "thermal contact" (aka, two systems that can exchange energy) and constraints on the combined system (for example, a constant total energy = U) we know that the entropy, aka the number of states, must always increase ignoring slight fluctuations. The condition that an...

Homework Statement A cube of iron 60 cm on each side is suspended between layers of mercury and water. The density of mercury is 13.6 g/cm^3. What height of the cube is in each liquid? What if the cube is made of lead?Homework Equations h=h_1 + h_2=0.6 m \rho_{Fe}=7880 kg/m^3 \rho_{Pb}=11300...