If you treat an electron as a classical rigid sphere with radius 2.00×10−17 m and uniform density, what angular speed ω is necessary to produce a spin angular momentum of magnitude 3/4−−−√ℏ? use h = 6.63×10−34 j⋅s for planck's constant, recalling that ℏ=h/2π, and 9.11×10−31 kg for the mass of an electron. express your answer in radians per second to three significant figures. view available hint(s)