The moon revolving around the Earth is in which type of equilibrium?

James and Clare are riding their bicycles. They are riding at the same speed, but the tires on Clare’s bicycle are larger in diameter. Which wheels have the greater rotational (angular) speed? Why?

Static Force Exerted by the Spring   Time to Complete 60 Revolutions 41 sec Angular Velocity of the Rotating Mass 9.2 rad/s Radius of Rotation for the Rotating Mass .162 cm Mass of the Rotating Mass .449 kg Centripetal Force Exerted on the Rotating Mass   % Difference Between the Static and Centripetal Forces

A wheel is rotating clockwise as shown (by the arrow). Its rotation axis coincides with the x-axis. A torque that causes the wheel to slow down is best represented by the vector 1 O 2 O 3 4 21 5

. If a trapeze artist rotates twice each second while sailing through the air and contracts to reduce his rotational inertia to one-third of what it was, how many rotations per second will result?

Because the rotational inertia is greater, it is the hardest in springboard diving to perform a forward somersault in     the pike position (bending at the waist but not the knees).            the straight position (no bending at knees or waist).            the tuck position (bending at both the waist and knees).

Does the center of gravity coincide with the fulcrum? Why?

A baseball pitcher throws the ball in a motion where there is rotation of the forearm about the elbow joint as well as other movements.

What is the impetus of rotational motion?

You place a 15 kg brick 0.5 m to the left of the fulcrum. Where on the right side would you place a 5 kg brick to place the system in equilibrium? A 0.75 m В 0.25 m 1.5 m D 1.0 m