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A spherical mirror is polished on both sides. When used as a convex mirror, the magnification is +1/7. Determine the magnification when used as a concave mirror, the object remaining the same distance from the mirror? Give your answer to three significant figures.
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0-container. Calculate the partial pressure of each gas in the container
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6.9 kg and the sign has a mass of ms = 15.4 kg. The length of the beam is L = 2.57 m. The sign is attached at the very end of the beam, but the horizontal wire h..
A copper wire has a resistance of 0.500 ? at 20.0ºC , and an iron wire has a resistance of 0.525 ? at the same temperature
A flat circular coil with 106 turns, a radius of 2.43 x10 -2 m, and a resistance of 0.328 Ω is exposed to an external magnetic field that is directed perpendicular to the plane of the coil. The magnitude of the external magnetic field is changing at..
A ball and bat, approaching one another each with the same speed of 1.1 m/s collide. Find the speed of the ball after the collision. find the factor by which the kinetic energy of the ball increases
If the welding arm moves 3.00 centimeter west, 4.00 centimeter north, and then 6.00 centimeter east, compute the resultant displacement and the total distance traveled by the welding arm
A car of mass m is on an icy driveway inclined at an angle ? = 16.0°, What is the car's speed at the bottom
the mass of a muon is 105.7 MeV/c^2. what is the value of the Rydberg constant for a muonic atom and what is the binding energy of a muonic atom
Find out the potential difference between a point.
An electron in the beam of a typical television picture tube is accelerated through a potential difference of 20,000 V before it strikes the face of the tube. What is the speed of the electron?
A cylinder contains 2 moles of an ideal monatomic gas that is initially at state A with a volume of 0.01 m^3 and a pressure of 4.0x10^5 Pa. Is this device a refrigerator or a heat engine
A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 2.70, Find the minimum area of the capacitor plates
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