Two protons are released from rest, one from location 1 and another from location 2. when these two protons reach location 3, the first proton has a speed that is 2 times the speed of the second proton. if the electric potentials at locations 1 and 2 are 231 v and 115 v, respectively, what is the electric potential at location 3?

Select the word from the list that best fits the definition classification of most stars on the h-r diagram

Which bonds are found inside a water molecule

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.