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A disk spinning with angular velocity , w=12 rad/s slows down to a stop in 4 seconds. What is the angular displacement delta theta?
A pendulum consists of a 4.98kg mass on the end of a 0.873 m string. The mass is pulled aside so the string makes an initial angle with the vertical of 12.5o. The mass is then released with initial speed of 2.10m/s upward and perpendicular to the rop..
An air-track glider attached to a spring oscillates between the 8.00 mark and the 69.0 mark on the track. The glider completes 10.0 oscillations in 40.0 .
A baseball has a mass of 140 grams and a softball has a mass of 280 grams. In which of the situations would they both have the same momentum.By how much will a bar long of the same material.
A proton with kinetic energy of 2.30 × 106 eV is fired perpendicular to the face of a large plate that has a uniform charge density, From what distance should the proton be fired so that it stops right at the surface of the plate
A particular organic molecule forms an electric dipole by possessing an effective charge separation of 0.177 nm for a pair of ±1.60 × 10-19-C charges. (a) What is the magnitude of the molecule's electric dipole moment?
A train has 4 locomotives (73 tons each) and 60 coal cars (42 tons each). The train is going down a 2.4% incline, What is the mass of the entire train
Drag race tires in contact with an asphalt surface have an extremely high coefficient of static friction. Assuming a constant acceleration and no slipping of tires, estimation the coefficient of static friction needed for a drag racer to cover 1.0 km..
An infinitely long line of charge has a linear charge density of 5.50×10-12 C/m. A proton is at distance 17.5 cm from the line and is moving directly toward line with speed 2900 m/s.
A 1260 kg is pulling a 335 kg trailer. Together the car and trailer have the acceleration of 2.15 m/s squared. Find out the net force on the car-trailer combination.
One day when you come into physics lab you find several plastic hemispheres floating like boats in a tank of fresh water. Each lab group is challenged to determine the heaviest rock that can be placed in the bottom of a plastic boat without sinkin..
Two metal balls A and B of negligible radius, connected by a taut nonconducting thread of length 2.40 m, are floating at rest on Space Station Freedom between two metal bulkheads. Ball A carries charge q, and ball B carries charge 2q.
Explain why? Because when you go to the grocery store they do not take any recognition as a form of payment!" do you agree or disagree? Examine.
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