Reference no: EM13663970

Imagine that you volunteered to spin on the stool for the classroom demo on the conservation of angular momentum. Initially you spin at 3.74 radians/s by your arms outstretched and a moment of inertia of 5.34 kg m².While spinning, you abruptly draw your arms in, reducing your moment of inertia to 1.60 kg m². What is your angular speed as a result? Give your answer in radian/s

1. A sodium atom (Z = 11) contains 11 protons in its nucleus. Strictly speaking, the Bohr model does not apply, as the neutral atom contains 11 electrons instead of a single electron. but, we can apply the model to the outermost electron as an approximation, provided that we utilize an effective value Z_effective rather than 11 for the number of protons in the nucleus. (a) The ionization energy for the outermost electron in a sodium atom is 5.1 eV. Utilize the Bohr model with Z =Z_effective to compute a value for Z_effective. (b) Using Z = 11, decide the corresponding value for the radius r of the outermost Bohr orbit.(c) Using the value computed for Z_effective in part (a),decide the corresponding radius r of the outermost Bohr orbit.