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

The blades of a wind turbine are 30 m in length and rotate at a maximum rotation rate of 20 rev/min. (a) If the blades are 6000 kg each and the rotor assembly has three blades, calculate the angular momentum of the turbine at this rotation rate. (b) What Is the torque require to rotate the blades up to the maximum rotation rate in 5 minutes?

A proton is accelerated in a cyclotron to 5.0106m/s in 0.01 s. The proton follows a circular path. If the radius of the cyclotron is 0.5 km, (a) What is the angular momentum of the proton about the center at its maximum speed? (b) What is the torque on the proton about the center as it accelerates to maximum speed?

In orbit mechanics, the angular momentum is also an important quantity governing the satellite's motion. Assume planar motion, a satellite is orbiting around Earth center within a fixed plane. Thus it's motion is completely described by the distance r and the angle (relative to some reference direction). êo 0 (center of Earth) êr PO.. P (satellite) satellite's trajectory Obtain the satellite's angular momentum with respect to Earth center. For spacecrafts, the angular momentum (h) is h = Fx, it is independent of mass. What is the magnitude of h?

Question 5 unts Given two vectors: M = -3î + 6j – 5k and N = -2î + 3j + k ... The cross product of MxN equals Choose the best answer. A -9i -7j +3k В 21i +13j +3k 9i +7j -3k 13 E No Answer

Figure 3 ft 4 ft 5 ft. < 1 of 1 If F₁ = {100i - 125j + 95k} lb and F₂ = {−210i + 280j + 100k} lb, determine the resultant moment produced by these forces about point O. Express the result as components of a Cartesian vector. (Figure 1) Enter the x, y, and components of the moment of force separated by commas. Mo = Submit V— ΑΣΦ 510, 1110,950 vec Provide Feedback Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining lb. ft

In (Figure 1), take m₁ = 3.4 kg and m² = 4.2 kg. Figure 5m 8 m/s 4 m m MAD 1.5 m 0 2 m 4 m ma B 30° 1m2 6 m/s X 1 of 1 Part A Determine the z component of the angular momentum Ho of particle A about point O. Express your answer in kilogram-meters squared per second to three significant figures. ΑΣΦΗ Πvec (Ho): = 124.19 Submit Previous Answers Request Answer * Incorrect; Try Again; 2 attempts remaining Part B (Ho): = Determine the z component of the angular momentum Ho of particle B about point O. Suppose that Express your answer in kilogram-meters squared per second to three significant figures. ΕΠΙΑΣΦΠ Submit vec Provide Feedback Previous Answers Request Answer * Incorrect; Try Again; 5 attempts remaining ? kg.m²/s ? kg.m²/s

An 800g ball with radius 2cm is travelling inthe + x direction at 5m/s. It strikes a stationaryball, with mass 500g and radius 2cm. The contactis off center, with the y-components of the ballscenters off by 1cm. After the collision, the lighterball has a speed of 3m/s.What is the velocity of the heavier ball? Howmuch energy was lost in the collision?

Compute the combined moment of the two 75-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 8.2 in., b = 3.9 in., F = 75 lb. y | I F Answers: (a) Mo= (b) MA= i i b F lb-in. lb-in.

Determine the moment of the force F about point O, about point A, and about the line OB. Find the general results in terms of F, a, b, and c. Then answer with these numbers: F = 320 N, a = 230 mm, b = 655 mm, c = 420 mm. F