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A 5.2cm -thick layer of oil (n=1.46) is sandwiched between a 1.5cm -thick sheet of glass and a 2.3cm -thick sheet of polystyrene plastic (n=1.59). How long (in nanoseconds ) does it take light incident perpendicular to the glass to pass through this 9.0cm -thick sandwich?
When he was first thinking about relativity (and before he developed his theory), find the your friend's speed relative to your reference frame
How much longer does the trip take. Find out the acceleration of each mass and the tension in the string that connects them.
A solenoid is constructed having 350 turns of wire and is 62.0 cm in length. A single hanging wire is positioned vertically at the end of the solenoid, what is the magnitude of the force on the wire
A23.0-mW laser beam of diameter1.85mm is reflected at normal incidence by a perfectly reflecting mirror. Calculate the radiation pressure on the mirror
You are studying guitar strings and are able to measure a few of (but not all) the standing wave frequencies for a particular string. what is the highest possible value for the fundamental frequency
The transformer in the power supply for a computer's 500-GB external hard drive changes a 120-V input voltage, what is the current in the primary and secondary when the drive is in operation
The half-life of Uranium(238 upper index 92 lower index) against alphy decay is 4.5x10^9 yr. How long does it take for seven-eigths of a sample of this isotope to decay
A wagon is rolling forward on level ground. Friction is negligible. The person sitting in the wagon is holding a rock. Find the speed of the wagon after the rock is thrown directly forward in one case and directly backward in another
In the Bohr model of the hydrogen atom, an electron moves in a circular path around a proton. The speed of the electron is approximately 1.89 106 m/s Find the centripetal acceleration of the electron.
questiona hare and a tortoise battle in a race over a straight course 1.05 km long. the tortoise crawls at the speed of
The density of ice is 917 kg/m3, and the density of sea water is 1025 kg/m3. What is the weight of the heaviest bear that the ice can support without sinking completely beneath the water
what must be done to increase the velocity of a rocket. Calculate the horizontal force that must be applied to produce an acceleration.
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