Image of the butterfly in the mirror
A butterfly at eye level is 22 cm in front of an plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of the butterfly in the mirror?
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An ideal spring has the spring constant k = 428 N/m. Calculate the distance this spring must be stretched from its equilibrium position for 28 J of work to be done.
A cardinal (Richmondena cardinalis) of mass 4.20×10-2 and a baseball of mass 0.140 have the same kinetic energy. What is the ratio of the cardinal's magnitude of momentum to the magnitude of the baseball's momentum?
If excess energy is carried away from the plant by a river with a flow rate of 1.0 106 kg/s, what is the rise in temperature of the flowing water?
Yellow light that has a wavelength of 6.32 102 nm passes through two narrow slits that are 0.201 mm apart. An interference pattern is produced on a screen 183 cm away. What is the location of the first-order image?
Assume one file has r =106 records. Each record takes R = 100 bytes, of which 10 bytes are for the key of the record. Suppose the key values range from 1 through 1,000,000, inclusive. Assume the block size B is 1000 bytes for all files, and that an a
Suppose you were engaged in biotechnology or genetic engineering; what environmental safeguards would you impose on your own research?
Write a script that will report the cumulative size of all the files in and below a given directory. Your script will also report the name and size (in bytes) of the largest file with that directory tree. Your script will also report the pe
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