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The size of a pixel on an electron-multipler CCD camera is 0.17 micrometers. We want to find the position of quantum dots, which have a 5 nm diameter, using a 60x 1.4 NA objective. We can more accurately find the center of the dot if its image spans several pixels. Over how many pixels will a green (500 nm) quantum dot appear on the camera? If we want the image of a quantum dot to take up about 3x3 pixels, we can build an optical system to magnify the image. What magnification should it have?
As observed from Earth, rocket Alpha moves with speed 0.814c and rocket Bravo travels with a speed of 0.638c. What is the speed of rocket Alpha
In a physics lab, light with a wavelength of 560nm travels in air from a laser to a photocell in a time of 16.9ns, What is the wavelength of the light in the glass
Identical point charges are fixed to opposite corners of a square. Where doesa third point charge experience the greater force, at one of the empty corners or at the center of the square?
Two railroad freight cars with masses 110 Mg and 140 Mg approach with equal speeds of 0.350 m/s. They collide, the lighter car rebounding opposite its original direction at 0.330 m/s.
In a double-slit experiment, the slit spacing is 0.22m, the distance to the screen is 3.30m, and light of wavelength 662nm is used. What is the thickness of the polystyrene sheet
An engine with an output of 170 W has an e?ciency of 45 %. It operates at 12 cycles/s. How much heat is absorbed in each cycle
An amusement park ride consists of a swing hanging from a chain attached to a spinning mechanism. The swing forms a horizontal circle of a radius 5.0 m and the chain makes an angle of 25 degrees from vertical as shown in the diagram. If the mass of t..
a yellow compound dissolved in methylene chloride is added to a chroma- tography column. the elution is begun using
Two air-track gliders of eual mass are initially moving in the same direction along a straight line, what are the speeds and directions of the gliders after the collision
on a distant planet golf is just as popular as it is on earth. a golfer tees off and drives the ball 4.5 times as far
A basketball is released from a height of 2.00 m above the floor and enters a basket that is 3.0 m above the floor. How far was the shooter from the basket
a 1.5 kg object initially at rest is raised to a height of 10 m by a force of 40 n. what is the velocity of the object
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