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Neutron stars consist only of neutrons and have unbelievably high densities. A typical mass and radius for a neutron star might be 1.60 1028 kg and 1.60 103 m.
(a) Find the density of such a star.
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. How long does it take the spool to reach this angular speed
A small sphere with a charge of -5.9 10-7 C is placed in a uniform electric field of magnitude 1.9 106 N/C pointing to the west. What is the magnitude and direction of the force on the sphere due to the electric field?
On a frictionless, horizontal air table, puck A (with mass 0.250 ) is moving toward puck B (with mass 0.350 ), Calculate the change in the total kinetic energy of the system that occurs during the collision
determine the time the inhabitants of alpha station. A woman who weighs 600N at earth's surface stands on top of a very tall ladder so she is one earth radius above earth's surface. how much does she weigh.
Suppose you place your face in front of a concave mirror. Which one of the following statements is correct?
Three equal point charges, each with a charge of 1.80?C , are placed at the corners of an equilateral triangle whose sides have a length of 0.550m, What is the potential energy of the system
A spherical balloon is partially blown up and its surface area is measured. More air is then added, by what factor does the radius of the balloon change
A technician wearing a circular metal band on his wrist moves his hand into a uniform magnetic field of magnitude 2.2 T in a time of 0.48 s. find the magnitude of the average emf induced in the band
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. Calculate the apparent thickness of the plate as viewed from above the water
Use a computer to produce a table and graph, like those in this section, for two interacting two-state paramagnets, each containing 100 elementary magnetic dipoles.
A 100g of mass on a spring undergoes Simple Harmonic Motion with amplitude of 25 cm. What is the maximum acceleration of the object
A wire of diameter 0.750 mm and length 30.0 m has a measured resistance of 2.40 ?. What is the resistivity of the wire
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