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An 6.60-cm-diameter, 300 sphere is released from rest at the top of a 1.70-m-long, 20.0 incline. It rolls, without slipping, to the bottom.
a) What is the sphere's angular velocity at the bottom of the incline?
b) What fraction of its kinetic energy is rotational?
Estimate how far from a piece of paper you must hold the lens to produce a sharp image of a streetlight 40 ft. Overhead.
The car that hits a concrete barrier and takes 0.3 seconds to stop.
When Philippe Petit was in the middle of the wire between the World Trade Center Towers the wire depressed 1 ft. If during his 40 minutes of tricks the wire began to oscillate up and down from this equilibrium position by 6 inches, where is his ki..
A simple refracting telescope provides large magnification by employing
A horse can maintain a top speed of 20m/s for a long distance but has a maximum acceleration of only 6.0m/s^2. how far does it run, to the nearest 10m
The plates of a 3.1 nF parallel-plate capacitor are each 0.27 m^2 in area. If the plates are separated by a Teflon sheet, how thick is the sheet
A swimming pool has dimensions 32 m 9 m and a flat bottom. The pool is filled to a depth of 1.50m with fresh water. What is the force exerted by water on the bottom.
An air-filled toroidal solenoid has a mean radius of 15.0 and a cross-sectional area of 5.02, What is the least number of turns that the winding must have
Supporting his theory, since 2001, workers in the United States have enhancement their hours worked while tax rates have dropped. What theory or theories of motivation might describe such a change.
The force of the wind on the sails of a sailboat is 300 N north. The water exerts a force of 210 N east. If the boat (including crew) has a mass of 310 kg, illustrate what are the magnitude and direction of its acceleration?
An semicircular arc with a radius of B is split into two. The arc is in the xy-plane such one part is in the first quadrant, What is the electric field vector at the origin
In a hot star, because of the high temperature, an atom can absorb sufficient energy to remove several electrons from the atom. Find the wavelengths of the next three spectral lines nearest to the line of longest wavelength
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