The uniform 30-kg plate is released from rest at the position shown. (Figure 1)igurey-0.5 m-0.5 m<1 of 1 >Determine its initial angular acceleration.Express your answer in radians per second squared to three significant figures. Enter positive value if the angular acceleration is clockwise and negative value if the angularacceleration is counterclockwise.a = 14.7 rad/s²SubmitCorrectPart BPrevious AnswersDetermine the x and y components of reaction at the pin A using scalar notation.Express your answers in newtons to three significant figures separated by a comma.IVE ΑΣΦAz, Ay 110.361,183.939=SubmitvecPrevious Answers Request AnswerX Incorrect; Try Again; 2 attempts remainingwww.P?N

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Let's begin with the angular acceleration of a compact disk (CD). To play music the CD must rotate at high speed while a laser reads data encoded in a spiral pattern on the disk. The disc has radius R = 6.0 cm = 0.060 m; when data are being read, it spins at 7200 rev/min. What is the CD's angular velocity w in radians per second? How much time is required for it to rotate through 90° ? If it starts from rest and reaches full speed in 4.0 s, what is its average angular acceleration? Figure 02 Δθ = 900 w= 7200 rev/min R = 0.060 m 1 of 1 0₁ SOLVE To convert the disc's angular velocity w to radians per second, we multiply by (1 min/60 s) and by (2π rad/1 rev): (1 min) (2π rad 1 rev From the definition of angular acceleration (Cav rest), the average angular acceleration is Part A - Practice Problem: W= From the definition of angular velocity (w = A0/At), we find the time At for the disc to turn through 90° (π/2 rad): π/2 rad 754 rad/s Aw/At), if the disc reaches a final angular velocity of…
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Part E What is the angular displacement in degrees of ladybug B during a time interval of 0.7 s? Express your answer in degrees to two significant figures. ► View Available Hint(s) ΔΘ Submit ΠΑΠ ΑΣΦ ?
how would I find the last parts of the question, (c and d) ?
Because 2? rad = 1 rev, the angular displacement in part (b) corresponds to 2.23 rev. In general, dividing the number of radians by 6 gives a good approximation to the number of revolutions, because 2? ~ 6.QUESTION If the angular acceleration were doubled for the same duration, by what factor would the angular displacement change? PRACTICE IT Use the worked example above to help you solve this problem. A compact disc rotates from rest up to an angular speed of 34.0 rad/s in a time of 0.889 s. (a) What is the angular acceleration of the disc, assuming the angular acceleration is uniform? rad/s2(b) Through what angle does the disc turn while coming up to speed? rad(c) If the radius of the disc is 4.45 cm, find the tangential speed of a microbe riding on the rim of the disc. m/s(d) What is the magnitude of the tangential acceleration of the microbe at the given time? m/s2 EXERCISEHINTS: GETTING STARTED | I'M STUCK! Use the values from PRACTICE IT to help you work this exercise.…
c. Ground level 2 being the next fastest, etc. If two disks have the same center of mass speeds, give them the same ranking. Free Response Question Three disks are initially placed at the top of an incline and released from rest. They each roll without slipping down the incline. Disk A has mass M and radius R, disk B has mass 2M and radius R, and disk C has mass M and radius 2R. Disk A Disk B Disk C a. Rank the disks from greatest to least based on their total kinetic energy at the bottom of the incline, with 1 being the most energy, 2 being the next most energy, etc. If two disks have the same total kinetic energy, give them the same ranking. Justify your ranking. c. Your teacher uses wax on the incline to decrease friction to the point where disk A is rolling and slipping down the incline. How does the speed of the center of mass of disk A at the bottom of the waxed incline compare to what it is when it was rolling without slipping? A. Greater with slipping B. Greater without…