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A light ray is propagating in a crystal where its wavelengthis 531 nm. It strikes theinterior surface of the crystal with an incidence angleof 30° and emerges into thesurrounding air at 76° to thesurface normal.
a) Find the light's frequency.
Hz
(b) Find its wavelength in air.
nm
a coil is connected to a 60 hz ac generator with a peak emf equal to 80 v. at this frequency the coil has an impedance
Calculate the horizontal force that must be applied to create an acceleratrion of 1.8g for a 1.2kg puck on a horizontal friction-free air table.
(a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2? (b) Find the maximum charge if bakelite is used between the plates instead of air.
In addition to dark matter cosmologists have proposed dark energy. The reason for this was the discovery of: A) slowing down of the expansion of the universe B) cosmic background radiation C) acceleration of the expansion of the universe D) gravitati..
A gas expands, changing its volume by +4.24×10-4 m3 while at a constant pressure of 6.44×105 Pa. What is the work done by the surroundings on the gas
What's the definition of quantum physics, in layman's terms?
0.125kg of water at 85.0 degrees is poured into an insulated cup containing 0.240kg of ice initally at 0 degrees. Calculate the mass of liquid
q1. the longest string a thick metal wire on a particular piano is 3.0 m long and has a tension of 300.0 n. it vibrates
If you throw a ball upward with an initial speed of 4 m/s at 1.5 m above the ground find the flying time for this free fall motio
A swimmer, capable of swimming at a speed of 1.0 m/s in still water (i.e., the swimmer can swim with a speed of 1.0 m/s relative to the water), How long does it take the swimmer to cross the river
A typical American family uses 700 kWh of electricity a month. On average, what is the resistance of a household
A vertical straight wire carrying an upward 24A current exertsan attractive force per unit length of 8.8e-4 N/m on a secondparallel wire 7cm away. What current (magnitude anddirection) flows in the second wire
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