Part A An electric turmtable 0.780 m in diameter is rotating about a fixed axis with an initial angular velocity of 0.240 rev/s. The angular acceleration is 0.917 rev/s? Compute the angular velocity after a time of 0.200 s rev/s Submit Request Answer Part B Through how many revolutions has the blade turned in this time interval? rev Submit Request Answer Part C What is the tangential speed of a point on the tip of the blade at time t-0.200 s ? 响A中 v. 0.165 m/s Submit Previous Anawers Request Answer X Incorrect; Try Again; 5 attempts remaining Part D What is the magnitude of the resutant acceleration of a point on the lip of the blade at time t0.200 s ? VO AZ a-0.78 m/

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A wind turbine has 12,000 kg blades that are 37 m long. The blades spin at 22 rpm. Part A If we model a blade as a point mass at the midpoint of the blade, what is the inward force necessary to provide each blade's centripetal acceleration? Express your answer with the appropriate units. F= Valye HÅ Submit Request Answer Provide Feedback G → Units ? N

Front View A A disk is rotating on a horizontal axis as shown in the figure. Answer the following questions if you push up at A and pull down at B along the axis of the disk. Choose the appropriate word choices below that correctly answer in the following sentences: 1. What is the direction of the torque acting on the disk? 2. What is the direction of the initial angular momentum vector for the disk? 3. The applied torque causes the wheel's axis (or angular momentum vector) to move. From the top view, what is the direction of motion of the L vector? A. down, left, CW, B. down, left, CW, C. in, left, CW, D. out, left, CCW, OE. out, up, CCW,

Dario, a prep cook at an Italian restaurant, spins a salad spinner and observes that it rotates with constant speed 20.0 times in 5.00 seconds and then stops spinning it. The salad spinner rotates 6.00 more times before it comes to rest. Assume that the spinner slows down with constant angular acceleration. Part A What is the magnitude of the angular acceleration of the salad spinner as it slows down? Express your answer numerically in radians per second per second. ▸ View Available Hint(s) a = 8.38 radians/s² Submit ✓ Correct Part B Previous Answers How long does it take for the salad spinner to come to rest? Express your answer numerically in seconds. ▸ View Available Hint(s) t = Templates Symbols undo redo reset keyboard shortcuts help, S

A 110 g ball and a 240 g ball are connected by a 40-cm-long, massless, rigid rod. The balls rotate about their center of mass at 150 rpm. Part A What is the speed of the 110 g ball? Express your answer to two significant figures and include the appropriate units. V = μA Value Units ?

I Review I Constants You are designing a rotating metal flywheel that will be used to store energy. The flywheel is to be a uniform disk with radius 35.0 cm. Starting from rest at t = 0, the flywheel rotates with constant angular acceleration 3.00 rad/s? about an axis perpendicular to the flywheel at its center. Part A If the flywheel has a density (mass per unit volume) of 8600 kg/m³, what thickness must it have to store 800 J of kinetic energy at t = 8.00 s? Express your answer with the appropriate units. HA h = Value Units Submit Request Answer

A A wooden plank is placed on top of two identical, solid, parallel cylindrical rollers, as shown in the figure below. The plank has a mass of M= 5.40 kg, and the rollers each have a mass of m= 2.00 kg and a radius of R = 6.00 cm. The plank is pulled by a constant horizontal force F of magnitude 7.20 N applied to the end of the plank and perpendicular to the axes of the cylindrical rollers. The cylinders roll without slipping on a flat surface, and there is also no slipping between the cylinders and the plank. At the instant shown in the figure, the rollers are equidistant from the ends of the plank. (Due to the nature of this problem, do not use rounded intermediate values in your calculations-including answers submitted in WebAssign.) (a) What is the magnitude (in m/s2) and direction of acceleration of the plank at the instant shown? m/s² magnitude direction --Select--- (b) What is the magnitude (in m/s2) and direction of acceleration of the centers of mass of the rollers at this…

A bucket of water with a mass of 2.36 kg is attached to a rope that is wound around a cylinder. The cylinder has a mass of 3.00 kg and is mounted horizontally on frictionless bearings. The bucket is released from rest. A) Find the speed of the bucket after it has fallen through a distance of 0.800 m. in m/s B) What is the tension in the rope? in N C) What is the acceleration of the bucket? Enter a positive value if the acceleration of the bucket is upward and enter a negative value if the acceleration of the bucket is downward. in m/s^2

Please answer question 6 parts a-c