A 0.22 kg block of aluminum with a temperature of 320 C is added to 1.0 kg of water with a temperature of 5 C assuming no heat is lost to the air what is the final temperature of aluminum block

More solar radiation is absorbed by earth’s surface than by

Discuss how the hardness or softness of the landing surface is related to the time required to stop the egg

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.