What is the angle in radians between the vectors a=(7,-7,1) and b
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What is the angle in radians between the vectors a=(7,-7,1) and b=(4,1,-3)?
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- Please help to explain :Two solid cylinders, one of mass m and radius r, and the other of mass M >m and radius R>r, are rolled down a long inclined plane. Which arrives first?A disk with velocity v= 10m/s, mass m=5 kg, and radius r=2 m. Find the total kinetic energy.I got Part A really well in finding the torque but I am struggling to find the angle theta in part B.
- Please don't provide handwritten solution. Three identical full spheres of mass 3.1kg and Radius R=2.9m are welded together in such a way that the centres of each of them are at (R,0,0), (3R,0,0) and (5R,0,0). The whole system rotates in +XY plane about the axis parallel to z axis and passing through point (6R,0,0). Find the moment of inertia of the whole system. State your answer to the nearest tenth of kgm2.A planet orbits a star, in a year of length 2.29 x 10’ s, in a nearly circular orbit of radius 3.81 x 1011 m. With respect to the star, determine (a) the angular speed of the planet, (b) the tangential speed of the planet, and (c) the magnitude of the planet's centripetal acceleration. (a) Number i Units (b) Number i Units (c) Number i Units >