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Two acrobats are balanced on a very thin rod spinning atop a thin pole. The first acrobat is 45.0 kg at a distance of 2.50 meteres from the pole. The second acrobat has a mass of 56.0 kg at a distance of 2.00 meters from the pole. What is the moment of inertia of the system?
What is the reading of spring scale
A double-slit experiment is set up using a helium-neon laser (?=633nm). Then a very thin piece of glass (n=1.50) is placed over one of the slits. How thick is the glass
What is the linear speed of the phonograph needle
A double convex thin glass lens has equal radii of curvature. The focal length of the lens is +63.5 cm, find The index of refraction of the glass of the plano-convex lens
Cube of ice is taken from the freezer at -8.5°C and placed in a 75-gram aluminum calorimeter filled with 300.0 grams of water at room temperature of 20.0°C. The final situation is observed to be all water at 17°C. What was the mass of the ice cub..
The mousetrap car has a mass of 100 grams and starts travelling at the speed of 1.80 m/s and after 5seconds get the rested? What force did the motor exert.
When she leaves the track, she follows the characteristic path of projectile motion. Ignoring friction and air resistance, find out the maximum height H to which she rises above the end of the track.
A 15.1 mass fastened to the end of a steel wire with an unstretched length of 0.650 is whirled in a vertical circle with angular velocity 2.00 at the bottom of the circle. The cross-sectional area of the wire is 1.20×10?2 . Calculate the elongatio..
Rotates a 1.00 kg discus along a circular path of radius 1.04 m. The maximum speed of the discus is 17.0 m/s. Find out the magnitude of the maximum radial acceleration of the discus.
A 965-kg satellite orbits the Earth at a constant altitude of 94-km. What is the change in the system's kinetic energy
you walk 30m south and 30m east. find the magnitude and direction of the resultant displacement both graphically and
A 54.0kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of a circle with a radius of 3.90m
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