Part A Determine the angular momentum of a 78-g particle about the origin of coordinates when the particle is a Find the z-component. Express your answer using two significant figures. Lx = ΜΕ ΑΣΦ Submit Request Answer ▼Part B Find the y-component. Express your answer using two significant figures. Ο ΑΣΦ Ly= ? kg-m²/s ? kg-m²/s

В C P D The above diagram shows four objects, A, B, C, and D, all moving to the right in a straight line at the same constant speed. Which one of the following statements is correct about the angular momenta La, LB, Lc, and Lp of the objects, with respect to point P? O LA = LB = Lc = LD> 0 O LA > LB = Lc > Lp = 0 LA = LB = Lc = LD = 0 LA> LB > Lc> LD = 0 LA > Lc> LB > LD = 0

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A person of mass 76 kgkg stands at the center of a rotating merry-go-round platform of radius 3.5 mm and moment of inertia 900 kg⋅m2kg⋅m2 . The platform rotates without friction with angular velocity 0.90 rad/srad/s . The person walks radially to the edge of the platform.     Part A Calculate the angular velocity when the person reaches the edge. Express your answer using three significant figures and include the appropriate 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

I Review I Constants Suppose that an asteroid traveling straight toward the center of the earth were to collide with our planet at the equator and bury itself just below the surface. Part A What would have to be the mass of this asteroid for the day to become 24.0% longer than it presently is as a result of the collision? Assume that the asteroid is very small compared to the earth and that the earth is uniform throughout. Express your answer in terms of the earth's mass M. Πνα ΑΣφ ? m = M

8. The image below depicts a street light standard that has been blown off of vertical by high winds during storm. A force of 1000N is being applied to the standard in order to "upright" the standard. Determine the magnitude and sense of the Moment about point A at the instant depicted. N-m. Be sure to include whether the Moment is Moment = Positive or Negative for this 2D problem. B 6 m 75° 3 m

I Re You're carrying a 3.6-m-long, 24 kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. How much force must you exert to keep the pole motionless in a horizontal position? Express your answer in newtons. Vo AE F = N Submit Previous Answers Request Answer

n A golfers clubs' linear tangential velocity at contact with the ball on the tee was recorded as 42.4 m/s. Given the distance from the club head to the golfers centre of rotation as 1.58 m calculate the angular velocity (radians/s) of rotation at the point of contact to 2 decimal places. s page Answer: e here to search 18 W 8 N g P Finish attempt... ASXXCTD +1.33%

Two particles are moving uniformly in opposite directions along parallel trajectories. The distance between the trajectories is d, as shown. Find: a. The total linear momentum of the particles. b. The angular momentum of the particles with respect to point O. c. Repeat part b. for points O, and O2. d. Answer the questions a through c if p, = p.