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The laser in a DVD player emits light at a wavelength of 640 nm. The laser in a Blu-Ray player emits light at 405 nm.
What is the photon energy of DVD player laser, in eV?
What is the photon energy of Blu-Ray player laser, in eV?
Determine the average rate of change from 2005 to 2009, and interpret the results. To receive full credit, describe how you determined the rate of change, and make sure you use complete sentences for your interpretation of the slope.
A third point particle that has a charge equal to Q = 13q sits at the apex of the triangle. A fourth point particle that has charge q' is placed at the midpoint of the baseline making the electric field
gas in a cylinder moves a piston with area 0.200 m^2 as energy is slowly added to the system. find the displacement of the piston
Your cup of coffee is too hot to drink when served at 95.0. What is the mass of an ice cube, taken from a -23.0 freezer, that will cool your coffee to a pleasant 59.0
The drawing shows a baggage carousel at an airport. Your suitcasehas not slid all the way down the slope and is going around at aconstant speed on a circle (r = 10.4 m) as the carousel turns.
The captain of a ship grabs hold of the wheel with one hand a distance of 0.285m from the axis of rotation to adjust the rudder. what is the magnitude of the torque
A uniform cable of weight whangs vertically downward, supported by an upward force ofmagnitude wat its top end. What is the tension in the cable at its top end
Two soccer players start from rest, 33 m apart. They run directly toward each other, both players accelerating. How much time passes before the players collide
what are the horizontal and vertical component of the velocity
Through a thunderstorm, 4.7s elapses between observing alighting flash and hearing the resulting thunder. About how far away in kilometres and miles was the lighting flash?
A cube of iron 4cm on a side is floated in a bath of mercury. The density of iron is 7.87 g/cm^3. What percent of the cubes mass is located below the surface of the mercury?
A car (m1 = 900) moving south with a speed v1 = 25 collides with a truck (m2 = 1500) moving at an angle of 30 degrees south of west with a speed v2= 20. What is the magnitude and direction of their final velocity
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