What is the smallest thickness of a soap film
What is the smallest thickness of a soap film that would appear black if illuminated with 490 light? Assume there is air on both sides of the soap film.
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Find the net charge of a system consisting of 2.3×107 electrons.
After equilibrium is reached, the mixture has an uniform temperature of 76.5165 C. What is the change in entropy of the system?
A 5.5µC and a 4.0µF capacitors are connected in series across a 24V battery. What voltage is required to charge a parallel combination of the two capacitors to the same total energy?
The bullet becomes embedded in the block. The acceleration of gravity is 9.8 m/s2 . If the bullet-block system compresses the spring by a maximum of 89.2 cm, what was the speed of the bullet at impact with the block?
At what point along its length must the wire be cut so that the resistance of one piece is 4.0 times the resistance of the other? What is the resistance of each piece?
How has Europe benefited from its location and its major physical features? Include a discussion of the European Union. Do you think the EU could eventually lead to one large supra Europe?
A rotating cylinder about 16 {rm km} long and 8.4 km in diameter is designed to be used as a space colony. With what angular speed must it rotate so that the residents on it will experience the same acceleration due to gravity as on Earth?
A dipole with dipole moment 1.6 {rm nCcdot m} is oriented at 45{^circ} to a 3.4 {rm MN/C} electric field. What is the magnitude of the torque on the dipole?
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