Figure is not to scale.

While placing a compact disc into a CD player, you notice a small chip on its edge. You attempt to play the CD anyway by placing the CD into the player's deck with the chip at ?0=15.2∘θ0=15.2∘ as measured from the +?+x‑axis. The CD begins to rotate with angular acceleration ?=2.31 rad/s2.α=2.31 rad/s2. If the CD has been spinning for ?=3.51 st=3.51 s and the disc has a radius of ?=6.00 cm,r=6.00 cm, what are the ?–?x–y coordinates of the chip after this time, assuming the center of the disc is located at (0.00,0.00)

The Bunchberry flower has the fastest moving parts ever observed in a plant. Initially, the stamens are held by the petals in a bent position, storing elastic energy like a coiled spring. When the petals release, the tips of the stamen act like medieval catapults, flipping through a 60° angle in just 0.30 ms.to launch pollen from anther sacs at their ends. The human eye just sees a burst of pollen; only high speed photography reveals the details. We can model the stamen tip as a 1.0 mm long, 10µg rigid rod with a 10µg anther sac at the end. Although oversimplifying, we'll assume a Pollen Pollen Anther sac constant angular acceleration. A. How large is the "straightening torque"? (you may assume the torques created by the gravity 1.0 mm Stamen force are minimal compared to the straightening torque, and can be ignored. B. What is the speed of the anther sac as it releases its pollen? Initial configuration Final configuration

Your answer is partially correct. Review Conceptual Example 2 before attempting this problem. The moon has a diameter of 3.48 x 106 m and is a distance of 3.85 x 108 m from the earth. The sun has a diameter of 1.39 x 10⁹ m and is 1.50 x 10¹1 m from the earth. Determine (in radians) the angles subtended by (a) the moon and (b) the sun, as measured by a person standing on the earth. (c) Determine the ratio of the apparent circular area of the moon to the apparent circular area of the sun. These calculations determine whether a total eclipse of the sun is really "total." (a) Number 0.00904 (b) Number i 0.0093 (c) Number i 0.945 Units rad Units Units rad No units

Problem 24:  An amusement park ride rotates around a fixed axis such that the angular position of a point on the ride follows the equation: θ(t) = a + bt2 – ct3 where a = 1.1 rad, b = 0.35 rad/s2 and c = 0.025 rad/s3. Randomized Variablesa = 1.1 radb = 0.35 rad/s2c = 0.025 rad/s3 Part (a)  Determine an equation for the angular speed of the ride as a function of time, ω(t). Write your answer using the symbols a, b, and c, instead of their numerical values.  Part (d)  Determine an equation for the angular acceleration of the ride as a function of time, α(t). Write your answer using the symbols a, b, and c, instead of their numerical values.