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A copper wire 89.1 cm long and 1.05 mm in diameter have a mass of 6.07 g.
1. Discover the number of electrons in the wire. (Copper has an atomic number of 29; that is, there are 29 protons in the Copper atom. Copper's atomic mass is 63.5.)
2. There is one free electron per atom in copper. Discover the number of free electrons in the wire.
A small package is fired off Earth's surface with an unknown launchspeed at a 42.0^\circ angle with the local horizontal. What was the launch speed of the package
A uniform electric field of 1.5 × 104 N/C is oriented in the positive x direction. A uniform magnetic field of 5 T is oriented in the negative x direction. What is the net force on the proton
Energy level to second order in the perturbation.
A 0.30 kg object is attached to a spring with force constant 167 N/m so that the object is allowed to move on a horizontal frictionless surface. Find the force on the object
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A thin film of oil (n=1.26) is located on smooth, wet pavement. When viewed from a direction perpendicular to the pavement, evaluate the minimum thickness of the oil film
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Four masses M in deep space are connected by four identical light springs with spring constant k and equilibrium length L. What is the kinetic energy of this system
If a ship loaded when floating in fresh water to a weight of 50,000 metric tons were floated in sea water of specific gravity 1.03, how much additional weight could she take on board without being immersed to a greater extent than in the fresh water?
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