Use verilog to create a 32-bits accumulator requirement: this accumulator cannot directly apply verilog built-in addition operator for bit vectors, for example “assign {cout, s} = a + b + cin; ”. you need to design 2 different structure of accumulator: 32-bits ripple carry adder (rca) and 32-bits carry look-ahead adder (cla), and you can use different full adder architecture also

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?