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In a certain two-dimensional field of force the potential energy of a particle has the form U = ax2 3y2, where a and 13 are positive constants whose magnitudes are different. Find out:
(a) whether this field is central;
(b) what is the shape of the equipotential surfaces and also of the surfaces for which the magnitude of the vector of force F = const.
A car moving at 10.0 m/s encounters a bump that has a circular cross-section with a radius of 30.0 m. when the car is at the top of the bump
A ladder of length L = 2.5 m and mass m = 15.0 kg rests on a floor with coefficient of static friction ?s = 0.57. Assume the wall is frictionless. What is the minimum angle to keep the ladder from sliding
Think about the Earth and Mars in their orbit around the Sun. Where is the center of mass located for this three body system? It is closer to the Earth, than it is to either the Sun or Mars. It is closer to Mars, than it is to either the Earth or the..
a recording engineer works in a soundproof room that is 44.0 db quieter than the outside. if the sound intensity in the room is 1.20 x 10^-10 w/m^2, what is the intensity outside
q1. a gadget of mass 17.52kg floats in space without motion. because of some internal malfunction the gadget violently
Near Neverland Ranch, there is a big beautifulpink dam. First thing in the morning of everyday, Michael Jacksonopens his window and gazes at this big beautiful pink dam. And heexclaims, “Hurray for pink, my favorite color!!”.Unfortunately, one day..
A pulsar is a collapsed, rotating star that sends out a narrow beam of radiation, like the light from a lighthouse. at what rate does an observer on the Endeavor see pulses emitted
a child throws a 5.4 kg package horizontally from a boat with a speed of 10 m/s. Calculate the resulting velocity of the boat
a person notices a mild electric shock if the current along a path through the thumb and the index finger exceeds 80.0
Derive a formula for the number of photons per unit time that strike the detector. What is the relationship between the rate (number per second) at which photons hit the detector, and the amplimde of the E-field at the detector?
Consider a wet banked roadway, where there is a coefficient of static friction of 0.30 and a coefficient of kinetic friction of 0.25 between the tires and the roadway. What is the minimum speed the automobile can have before sliding down the bankin..
One component of a magnetic field has a magnitude of 0.070 T and points along the +x axis, Find the magnitude of the net magnetic force that acts on the particle
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