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A luggage carousel at an airport has the form of a section of a large cone, steadily rotating about its vertical axis. Its metallic surface slopes downward toward the outside, making an angle of 22.5 degree with the horizontal. A piece of luggage having mass 30.0 kilogram is located on the carousel, 7.46 meter from the axis of rotation. The travel bag goes around once in 41.0 second. Find the force of static friction between bag and carousel.
N
A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 13.00 m long, weighs 21.67 N, Calculate the rotational inertia of the rod
A mass of 1.7kg stretches a vertical spring 0.313 m. If the spring is stretched an additional 0.13m and released, how long does it take to reach (new) equilibrium position again.
When viewed in a spherical mirror, the image of a setting sun is a virtual image. What is the radius of curvature of the mirror
calculate the electric field a distance z from a uniformly charged infinite flat non-conducting sheet by modeling the
A hiker's trip consists of three segments. Path A is 8km long heading 65 degrees north of east. Path B is 7km long in a direction due east. Path C is 4.0 km long heading 313 degrees counter clockwise from east.
Two cartons sit next to, and touching, each other on a frictionless horizontal surface. Calculate the contact force between these cartons when a horizontal force of 5.2 N is applied to the light carton
the overall volume compression ratio of a reversed carnot cycle working with air as a refrigerant is 10. the
A truck of mass 2200kg leaves town moving at 25 m/s to the north. Outside town, the truck turns north-east and changes speed to 40 m/s. What is the change in the truck's momentum
the sound intensity 59 m from a wailing tornado siren is 0.11 wm2. a what is the intensity at 1190 m? b the weakest
consider a point charge q 5.0?c point a at distance d1 1.050 m from q and point b at distance d2 0.500 m. if these
a cart with a mass of 200 kg along a frictionless track. Calculate the velocity of the cart at points A and C is the cart is dropped from a height of 100m with an initial velocity of 10 m/s
1. calculate the work done by a 47n force pushing a .025kg pencil .25m against a force of 23n.2. calculate the work
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