Physics, 21.10.2019 14:50 elyzarobertson
A4,000-kg car traveling at 20m/s hits a wall with a force of 80,000 n and comes to a stop. what was the impact time?
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Which statement correctly describes the relationship between frequency and wavelength?
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What is the efficiency of an engine that does 80 j of work and exhausts 320 j of heat while taking in 400 j of heat ? a. 10% b. 20% c. 80% d. 25%
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Aplane's average speed between two cities is 600 km/h. if the trip takes 2.5 hours, how far does the plane fly?
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The topics covered by the study of thermodynamics include a. energy changes during heating. b. energy changes during chemical reactions. c. color changes during chemical reactions. d. both (a) and (b)
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A4,000-kg car traveling at 20m/s hits a wall with a force of 80,000 n and comes to a stop. what was...
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