Which can be observed both on Earth and in an accelerating ship in space that is free from the effect of any gravitational field? Check all that apply. chairs floating in midair apples falling from trees people’s feet touching the ground sky divers moving toward the ground balls bending downward after being thrown

Which type of basaltic lava flow has a fairly smooth

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

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.