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Surface currents and waves are powered by a) wind and heat. b) wind and tides. c) boats and wind. d) heat and weather.
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The of a machine determines its "usefulness." a. input force b. output force c. mechanical advantage
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The first law of thermodynamics states that heat added to a system is neither created nor destroyed but is as it changes into other forms of energy.
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What is the role of the water cycle in maintaining freshwater levels in lake and rivers?
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An object that weighs 75n is pulled on a horizontal surface by a horizontal pull of 50 n to the right. the friction force on this object is 30 n to the left. what is the acceleration of the object?
Answers: 1
Surface currents and waves are powered by a) wind and heat. b) wind and tides. c) boats and wind. d)...
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