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As an admirer of Thomas Young, you perform a double-slit experiment in his honor. You set your slits 1.25 mm apart and position your screen 3.83 m from the slits. While Young had to struggle to achieve a monochromatic light beam of sufficient intensity, you simply turn on a laser with a wavelength of 631 nm. How far on the screen are the first bright fringe and the second dark fringe from the central bright fringe?
A long, narrow, uniform tube of mass M and length l rotates freely about a perpendicular axis through its CM. What will the tube's angular velocity be when this happens
You are called as an expert witness in the trial of a traffic violation. The facts are these: A driver slammed on his brakes and came to a stop with constant acceleration, How fast was he going when he hit his brakes
The solar panels on the roof of a house measure 4.0 meter by 6.7 meter. Find what average power do the panels supply when the incident intensity is 0.80 kW/m2 and the light is incident at an angle of 56 degree from the normal
An aircraft, diving at anangle of 53 with the vertical, releases a package at an altitude of730 m. How far did the projectile travel horizontally
a pump is required to lift 800 kg of water about 210 gallons per minute from a well 14.0 m deep and eject it with a
A uniform electric field has magnitude E and is directed in the negative x direction. Calculate the work done on the point charge by the electric field
A helicopter has 3 blades, each of them are 5.20m long and has a mass of 220kg.(each blade has a mass of 220kg, not the sum of the 3) The rotor is rotating at 385 rev/min. What is the rotational inertia of the rotor assembly about the axis of rot..
In this lab, we measure a voltage difference of 4.0 V between two points on the conducting paper between two parallel conducting electrodes. What is the magnitude of electric field at this location on the conducting paper and in which direction does..
An object with mass 4.0 kg is attachedto a spring with spring stiffness constant k =300 N/m and is executing simpleharmonic motion. When the object is 0.020 m from its equilibriumposition, it is moving with a speed of 0.55 m/s.
An ocean liner leaves New York City and travels 37.0° north of east for 171 km. How far east and how far north has it disappeared? In other words, what are the magnitudes of the components of the ship's displacement vector in the directions.
Two geekie physics students with a combined mass of 122 kg jump into their old car to run out for some late night pizza. What is mass of the car
A molecule of DNA (deoxyribonucleic acid) lies along a straight line. It is 1.472 µm long. The ends of the molecule become singly ionized; negative on one end, positive on the other. The helical molecule acts as a spring and compresses 1.5% upon beco..
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