Which best defines the skeletal system? a) creates central connections between the brain and spinal cord. b) a framework of bones that suppprt muscles and organs. c) supports the process of bringing in oxygen and getting rid of carbon dioxide. d) processed waste made by the cells and moves it out of the body.
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Physics, 22.06.2019 00:30
What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body
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The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz
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Physics, 23.06.2019 07:10
Atoy airplane, flying in a horizontal, circularpath, completes 10. complete circles in 30.seconds. if the radius of the plane’s circular pathis 4.0 meters, the average speed of the airplane is(1) 0.13 m/s (3) 1.3 m/s(2) 0.84 m/s (4) 8.4 m/s
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Which best defines the skeletal system? a) creates central connections between the brain and spinal...
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