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Q. A double-slit experiment is set up using red light (l = 709 nm). A first order bright fringe is seen at a given location on a screen. What wavelength of visible light (between 380 nm and 750 nm) would produce a dark fringe at the identical location on the screen?
Q. If a car traveling at 66 km/h will skid 22 m when its brakes lock, how far will it skid if it is traveling at 120 km/h when its brakes lock?
A 426 kg bear grasping a vertical tree slides down at constant velocity. The acceleration of gravity is 10m/s2. What is the friction force that acts on the bear? Answer in units of N.
The primary coil of a transformer has 237 turns; secondary coil has 2100 turns. An alternating current is sent through the primary coil. The emf in the primary is 25 V. What is the emf amplitude in secondary.
Bats are capable of navigating using the earth's field-a plus for an animal that may fly great distances from its roost at night. If, as sleeping during the day, bats are exposed to a field of a equal magnitude but different direction than the earth..
What is total distance the bird travels by trains collide
A hotel elevator ascends 170 {rm m} with a maximum speed of 5.90 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.3 {rm m/s^2}.
find the final temperature when 1000 g of water at 20 celcius in a 125 g copper calorimeter is mixed with 50g of steam originally at 153 celcius.
What is distance of a sample of blood from the rotation axis
Follow that with some of her work on repressed memories. After completing your readings on the WebLink, the textbook, and the PowerPoint presentation, address the prompts for your assignment.
What is the magnitude of the magnetic field. Evaluate this to the tension as the boat is raised and held at rest so the angle becomes 25 degrees.
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.
Uniform rate of acceleration
A force vector points at an angle of 50.6° above the +x axis. It has a y component of +280 newtons. Calculate the magnitude of the force vector.
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