Easy (not me) Physics Question?
Here are two questions of the task (out of 47 LOL) I could not understand. If it helps, we are talking about work, power-generating energy, energy conservation, so as always thanks everyone! 1.) Rows of wind are used in various parts of wind to generate electricity. Does the power generated affect the speed? Places that behind the "windmills" more wind if they are not there? Discuss this in terms of energy conservation. (Problem in the bottom of the page with illustration) 2 http://dev.physicslab.org/Document.aspx?doctype=5&filename=Compilations_CPworkbook_WorkEnergy.xml.) That block reaches the bottom of the first outstanding assuming no friction? (The bottom half of page) http://dev.physicslab.org/Document.aspx?doctype=5&filename=Compilations_CPworkbook_WorkEnergy.xml
dunno about # 1 but for # 2 because there is no friction, gravity is the only force that matters, and because gravity affects all alike, and both tilts vertically identical (ie they are the same height), it reaches the bottom, at the same time. Block B (the less steep slope) have a greater speed because implies a greater contribution is horizontal velocity.
Home Energy Conservation Tips, Small Wind Turbine
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