1. Most PE, because PE is directly proportional to distance (height)
Height: 100 meters
Speed: 0 mph
2. Most KE, because KE is directly proportional to speed
Height: 10 meters
Speed: 40 mph
3. Most TE, average KE
Height: 10 meters
Speed: 40 mph
4. The skater gains thermal energy as she goes down the slope, because the speed of the skater increases, so it increases the total kinetic energy of the particles, and makes them vibrate faster, resulting in a higher temperature.
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<span>The
best and most correct answer among the choices provided by the question is<span> A.
If the uncharged object is a conductor, the charged object can attract opposite
charges. </span></span>
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</span><span>Hope my answer would be a great help for you. </span> </span>
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Copper will still be a solid at room temperature
Here is the link for the info: http://education.jlab.org/itselemental/ele029.html
It reduces the amount of fossil fuels we have to use.
