The three objects shown here all have the same mass M and radius R. Each object is rotating about its axis of symmetry (shown in blue). All three objects have the same rotational kinetic energy. Which one is rotating fastest? Prove and tick below. (e) Hollow cylinder (f) Solid cylinder 1= , MR (g) Thin-walled hollow cylinder 1= MR- A. Thin-walled hollow cylinder B. solid cylinder R2 R1 C. thin-walled hollow cylinder R R D. two or more of these are tied for fastest

A disk of radius 0.36 [m] is rotating about its center at a constant angular speed of 30 [rad/s]. Which of the following statements are TRUE about the motion of the disk?I. The angular speed at a point a third from the rim of the disk is 0.12 [rad/s].II. The disk turns through 75 [rad] in 2.5 [s].III. The linear speed at the rim of the disk is 11 [m/s].

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A key lime pie in a 8.50 in8.50 in diameter plate is placed upon a rotating tray. Then, the tray is rotated such that the rim of the pie plate moves through a distance of 233 in.233 in. Express the angular distance that the pie plate has moved through in revolutions, radians, and degrees. what is the angular distance in revelutions? what is the angular distance in radians? If the pie is cut into 1010 equal slices, express the angular size of one slice in radians, as a fraction of ?. what is the angular size =pi x in radians?

Consider a phonograph with a diameter of 0.6 m and a rotational speed of 33 RPM. Answer the following questions. What is its radius in m?What is its rotational speed in rad/s?What is the tangential speed on the phonograph's outer edge in m/s?What is the tangential speed at the center of the phonograph in m/s?What is the tangential speed halfway out to the edge of the phonograph?

Two people start at the same place and walk around a circular lake in opposite directions. One has an angular speed of 1.89 x 10-3 rad/s, while the other has an angular speed of 6.64 x 10-3 rad/s. How long will it be before they meet? Number i Start Units 0₂ ---- End