The kinetic energy of a proton and that of an a-particle are 4 eV and 1 eV,
respectively. The ratio of the de-Broglie wavelengths associated with
them, will be
(a) 2:1
(b) 1:1
(c) 1:2
(d) 4:1

Fill in the blank. the number of each type of element in the compound (other than 1) is represented by a small number to the right of the element symbol.

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.

Explain why you think this diagram shows what happened to the carbon in the biodome.