Unit 3 Vocab - Earthquakes & Volcanoes Flashcards

computer science

Automated spell checkers are used to analyze documents and locate words that might be misspelled. These programs work by comparing each word in the document to a large dictionary (in the non-Python sense) of words. If the word is not found in the dictionary, it is flagged as potentially incorrect. Write a program to perform spell-checking on a text file. To do this, you will need to get a large file of English words in alphabetical order. If you have a Unix or Linux system available, you might poke around for a file called words, usually located in/usr/dict or /usr/share/dict. Otherwise, a quick search on the Internet should turn up something usable. Your program should prompt for a file to analyze and then try to look up every word in the file using binary search. If a word is not found in the dictionary, print it on the screen as potentially incorrect.

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physics

A window washer pulls a rubber squeegee down a very tall vertical window. The squeegee has mass 160 g and is mounted on the end of a light rod. The coefficient of kinetic friction between the squeegee and the dry glass is 0.900. The window washer presses it against the window with a force having a horizontal component of 4.00 N. (a) If she pulls the squeegee down the window at constant velocity, what vertical force component must she exert? (b) The window washer increases the downward force component by 25.0%, while all other forces remain the same. Find the squeegee's acceleration in this situation. (c) The squeegee is moved into a wet portion of the window, where its motion is resisted by a fluid drag force R proportional to its velocity according to R = -20.0 v, where R is in newtons and v is in meters per second. Find the terminal velocity that the squeegee approaches, assuming the window washer exerts the same force described in part (b).

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physics

A long, straight wire that has a radius of $1.00 \mathrm{~mm}$ is coated with an insulating ferromagnetic material that has a thickness of $3.00 \mathrm{~mm}$ and a relative magnetic permeability of $400$ . The coated wire is in air and the wire itself is nonmagnetic. The wire carries a current of $40.0 \mathrm{~A}$ . Determine the magnetic field in the region occupied by the inside of the wire as a function of the perpendicular distance, $r$ , from the central axis of the wire.

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biology

According to the theory of plate tectonics, a. Earth’s climate has changed many times. b. Earth’s continents move very slowly. c. evolution occurs at different rates. d. giant asteroids crashed into Earth in the past.

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Unit 3 Vocab - Earthquakes & Volcanoes

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