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Coherent light is passed through two narrow slits whose separation is 39.5 mirometers . The second-order bright fringe in the interference pattern is located at an angle of 3.40×10?2 rad. If electrons are used instead of light, what must the kinetic energy (in electron volts) of the electrons be if they are to produce an interference pattern for which the second-order maximum is also at 3.40×10?2 rad?
The battery for certain cell phone is rated at 3.70V. According to the manufacturer it can produce 3.15 X 10^4 J of electrical energy, find the average current that this cell phone draws when turned on
A proton beam in an accelerator carries a current of 148 ?A. If the beam is incident on a target, how many protons strike the target in a period of21.0 s
Two cars approaching each other collide and stick together after the collision. One car has a mass of 1820 kg and a speed of 30 km/h in the positive x direction. find the initial velocity of the second car
Some people like to place large reflective balls in their gardens. Let?s say that such a ball has a radius of curvature of 24.0 cm, Determine the image distance for the bird's image
A real object and its real inverted image are to be 1.5 m apart. There are two possible locations for the lens relative to the position of the object. What is the other possible location
A 2.8 V battery is connected to a small light bulb with a resistance of 2.2 ohms. What is the current in the bulb
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 190 MeV, and the relative biological effectiveness (RBE) of this type of radiation is 16. How many nuclei are in the beam
A standing wave of 625 Hz is produced on a string that is 1.33 m long and fixed on both ends. If the speed of waves on this string is approximately 333 m/s, how many antinodes are there in the standing wave?
question1an airplane flies 200 km due west from city a to city b and next 335 km in direction of 30.0deg north of west
Two slits of equal width are a distance 0.57 mm apart and are illuminated by coherent, mono-chromatic light. compute the widths of the slits
Batteries power much of our modern mobile lifestyle. AA batteries are often rated in units of milliampere hours (mAh). How many Coulombs of charge are contained in a AA battery rated at 1500 mAh
Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the Moon. Determine the period of the orbit
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