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The windows in an office tower are coated with a film to minimize reflected light of wavelength 550 nm. If the glass has an index of refraction of 1.52 and the film coating has an index of refraction of 1.25, how thick should the film be applied?
A standing wave is set up by reflecting radio waves from a large, flat metal dish. What is the frequency of the radio waves
During a 58-ms interval, a change in the current in a primary coil occurs. This change leads to the appearance of a 7.1-mA, What is the change in the primary current
An astronaut on the Moon drops a rock straight downward from a height of 1.50m. what is the speed of the rock just before it lands
In atwood's machine two masses m1 and m2 hang vertically, connected over a frictionless pulley. Evaluate the acceleration numerically
A 2.00 kg mass is connected to a spring with a spring constant of 900 N/m. The displacement is given by the expression x(t) = 12.0 cm sin(? t). What is the frequency of the simple harmonic motion?
the equilibrium separation of H atoms in the H2 molecule is 0.074nm. Calculate the energies and wavelenghts of photons
A 2.0- kg piece of wood slides on the surface shown inFig 7.33 The curved sides are perfectly smooth, but the roughhorixontal bottom is 30 m long and has a kinetic frictioncoefficient of 0.20 with the wood. what is the total amount of work done by ..
An aluminum sphere of radius 10.7 cm is heated from 110.0 °F to 182.0 °F. (The linear expansion coefficient for aluminum is 2.20 10-5 K?1.), Find the radius change
Two parallel sheets each have large area A and are separated by a small distance R. The surface charge densities are σ and -σ . You wish to pull one of the sheets away from the other, by a small distance x. How much work does this require?
Calculate the time the microgel would require to recover to 99% of its initial height after the stress is removed. Determine the potential barrier for the molecule aggregation?
The rechargeable batteries for a laptop computer need a muchsmaller voltage than what a wall socket provides. Therefore, atransformer is plugged into the wall socket and produces then ecessary voltage for charging the batteries. The batteries arer..
A 4.57 MeV alpha particle from radium226Ra decay makes a head-on collision with a uranium nucleus. A uranium nucleus has 92 protons. What is the force on the alpha particle at the instant when it is at the distance of closest approach?
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