Physics, 20.09.2019 19:00 StephenCurry34
Asoccer player kicks a rock horizontally off a 37 m high cliff into a pool of water. if the player hears the sound of the splash 2.92 s later, what was the initial speed given to the rock (in m/s)? assume the speed of sound in air is 343 m/s. m/s (b) what if? if the temperature near the cliff suddenly falls to 0°c, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have to be (in m/s) for the soccer player to hear the sound of the splash 2.92 s after kicking the rock?
Answers: 1
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Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
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In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.
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How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.
Answers: 1
Asoccer player kicks a rock horizontally off a 37 m high cliff into a pool of water. if the player h...
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