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A uniform solid sphere rolls down an incline. Obtain what must be the incline angle (deg) if the linear acceleration of the center of the sphere is to have a magnitude of 0.20 gram?
A locomotive is pulling three wagons along a level track with a force of 100,000 Newton. Find what is the force between the 50,000 kg and 70,000 kg wagons
What is the gravitational force between two 20-kg iron balls separated by a distance of .9 m? What is the height of the table
A thin spherical shell of mass 0.450 kilogram and diameter 0.230 meter is filled with alcohol (ρ = 806 kg/m3). Compute the acceleration of the alcohol-filled shell
A contact lens is made of plastic by an index of refraction of 1.60. The lens has an outer radius of curvature of +2.07 cm and an inner radius of curvature of+2.56 cm. What is the focal length of the lens?
A spherical object has an outside diameter of 52.0 cm. Its outer shell is composed of aluminum and is 2.40 cm thick. What is the object's average density
A spring with a spring constatn of 1200 N/m is placed at the bottom of an inclined plane with an angle of 30 degrees with the horizontal. how far up the incline plane will the block move before it stops
Suppose a mangetic field of 7.45 mT is pointing into a piece of paper and then we shoot a small charged metal ball, 4.8 grams and +1.52 uC, What is the magnitude and direction of the force on the particle
A 30kg Ball is shot straight up from the ground with an initial velocity of 75m/s. Using the principle of conservation of energy, find the maximum height it achieved
An electron and proton move in circular orbits in a plane perpendicular to a uniform magnetic field B. Find the ratio of the radius of electron to the proton
What is the speed of the arrow as it leaves the bow.
A small 13.0-g bug stands at one end of a thin uniform bar that is initially at rest on a smooth horizontal table. What is the angular speed of the bar when the insect leaps off
The length of a spring increases by6.9cm from its relaxed length when a mass of1.7kg is hanging in equilibrium from the spring. How much elastic potential energy is stored in the spring
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