Bilbrun observes his windmill rotate with constant angular s…

Bilbrun observes his windmill rotate with constant angular speed 8 times in five minutes. Then the wind completely dies down, and the windmill rotates exactly 3 more times before coming to rest. What is the magnitude of the average angular acceleration of the windmill after it begins slowing down?

Two planets, Fibblestib and Dimble, orbit a single star. The…

Two planets, Fibblestib and Dimble, orbit a single star. The gravitational force from the star on planet Fibblestib is twice the force from the star on planet Dimble. Also, planet Dimble has three times the mass of planet Fibblestib. What is the ratio of the two planets’ orbital radii RFibblestib/RDimble?

Fabien leaps off the edge of a cliff, not realizing he would…

Fabien leaps off the edge of a cliff, not realizing he would likely die from the fall. Luckily his friend Gimble snares him with a lasso connected to a 4 m long rope. Once Fabien is hanging stationary with Gimble bravely holding the other end of the rope, Gimble notices that the rope has stretched by 10 cm. Assuming the rope has a diameter of 3 cm and Fabien has a mass of 22 kg, what is the Young’s modulus of the rope?