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Q. The center of a 1.50 diameter spherical pocket of oil is 1.00 beneath the Earth's surface.Estimate by what percentage directly above the pocket of oil would differ from the expected value of for a uniform Earth? Assume the density of oil is 8.10^2 kg/m^3
Q. An electric dipole with dipole moment p is oriented along the y-axis.
A:Find an expression for the electric potential on the y-axis at a point where y is much larger than the charge spacing s. Write your expression in terms of the dipole moment p.
Express your answer in terms of p, y and appropriate constants.
B:The dipole moment of a water molecule is 6.2 times 10^{ - 30};{rm C} {rm m} . What is the electric potential 1.0 nm from a water molecule along the axis of the dipole?
Express your answer numerically, in Volts, to 3 significant figures.
A heavy rope used for as a mooring line for a cruise ship sags a shown. If the mass of the rope is 96 kg, what are the tensions in rope at A and B.
A force vector has a magnitude of 569 newtons and points at an angle 41o of below the positive x axis. What is (a) x scalar component and (b) y scalar component of the vector.
Presume your local government wants to raise your taxes in order to support the construction of wind and solar power plants that can give your town with low-polluting energy and help decrease your town's dependence on fossil fuels for energy. Would y..
How long will it take you to cover the 99 m length of the walkway if, once you get on the walkway, you immediately turn around and start walking in the opposite direction with a speed of 1.5 m/s relative to the walkway.
A steel wire of mass 0.400kg and length 0.640m supports a 102 kg block. The wire is struck exactly at its midpoint causing a small displacement. How long does it take the peak of this displacement to reach the top of the wire.
Assume that plane continues to fly with the similar velocity
A grindstone of radius 4 m is initially spinning with an angular speed of 8 rad/s. The angular speed is then increased to 10 rad/s over the next 4 seconds. Imagine that the angular acceleration is constant.
A novice skier, starting from rest, slides down a frictionless 41.0 incline whose vertical height is 230.How fast is she going when she reaches the bottom.
The front 1.20 m of a 1600 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.
At one instant a bicyclist is 43 m due east of a park's flagpole, going due south with a speed of 12 m/s. Then 22 s later, the cyclist is 43 m due north of the flagpole, going due east with a speed of 12 m/s.
A small piece of Styrofoam packing material is dropped from a height of 1.50 m above the ground. Until it reaches terminal speed, magnitude of its acceleration is given by a = g - bv. After falling 0.40 m, the styrofoam effectively reaches its ter..
On a cello, the string with the largest linear density (1.54 10-2 kg/m) is C string. This string produces a fundamental frequency of 63.4 Hz and has the length of 0.795 m between the two fixed ends. Find tension in the string.
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