Two metals are used to make batteries. would a battery in which both metals components are copper, make a good battery? explain your reasoning.

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.

Area around a charged object where the objects can exert a force on another charged objects is an electric

Calculate the volume of this regular solid. what is the volume of the cone? round your answer to the nearest hundredth