Write the nature of work done by an elongated spring?

1. Moment of inertia for a solid sphere of a given volume is hollow spherical shell of the same volume (greater/smaller) that of a

What material and corresponding stresses are best for pipe shape. Sketch HP vs S shape.

a: What is the magnitude of torque applied to the shaft? b: The magnitude of the Polar Moment of Inertia of the shaft cross-section? c: The magnitude of the shear stress at r=0in (center of shaft) is?

Can the buckling of a column lead to a sudden and dramatic failure of a structure?

Kindly answer correctly. Please show the necessary steps. Thanks in advance

Required information A 24-mm-diameter uniform steel shaft is 600 mm long between bearings. Take the value of acceleration due to gravity g to be 9.81 m/s2, the value of y for carbon steel to be 76.5 x 103 N-m-3, and the value of Eto be 207 x 10⁹ N/m². NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. If the goal is to double the critical speed, what is the new diameter in mm? (You must provide an answer before moving to the next part.) The new diameter is mm.