A $440-$lb vertical force is applied at $D$ to a gear attached to the solid $1-$in$.$ diameter shaft $AB.$ Determine the principal stresses and the maximum shearing stress at point $H$ located as shown on top of the shaft using Mohr's circle. $($Round the final answers to two decimal places.$)$

The maximum principal stress is ${}_{\text{m}\text{a}\text{x}}=$ ksi and the minimum principal stress

${}_{\text{m}\text{i}\text{n}}=$ ksi $(+$ tensile; $-$ compressive$).$

The maximum shearing stress magnitude is $$ ksi.