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A neutron star has a mass of 2.20 x 10^30 kg (about the mass of our sun) and a radius of 5.0 x 10^3 m (about the height of a good sized mountain). Assume an object falls from rest near the surface of such a star. How fast would it be moving after it had dropped a distance of 0.010 m? (Suppose that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
A krypton laser produces a cylindrical red laser beam 3mm in diameter with 4W of power. What is the light intensity on a wall 5.0 m away from the laser.
An Electromagnetic Car Alarm, Your latest invention is a car alarm that produces sound at a particularly annoying frequency of 3500Hz. What value of inductance should you choose for your car alarm circuit
A 60.0cm long hollow nichrome tube of inner diameter 2.20mm, What is the current in the tube
A football is thrown toward a receiver with an initial speed of 20 m/s at an angle of 30.0o above the horizontal. At that instant, receiver is 20 m from the quarterback. In what direction and with what constant speed must the receiver run in order..
Find the group velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV protons. Find the phase velocity of 0.57 MeV electrons
A 120g ball moving at .30 m/s in the + x-direction is subject to a 0.15N force in the - y-direction for 3.0s. Find the magnitude of the ball's momentum change
a 200kg ball is shot from a 2200kg cannon horizontally and positivly at 200m/s. what is the cannons speed, in respect of Earth
the hot dog cooker described in the chapter heats hot dog by connecting them to 91 v house hold electricity. a typical
A 0.60 kg piece of aluminium at a temperature of 180 C is dumped into 900 mL of water at a temperature of 30 C. What's the final equilibrium temperature
Assume you are a scuba diver preparing for a 30m dive into sea water of density 1025 kg/m3, what are the gauge and absolute pressures in Pa you experience at a depth of 30 m in the sea
you are a poor student with an old car that has bald ties. you are traveling at 60 mileshour and you slam on the brakes
what are some of the benefits of matrix organizational
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