Answer:
Light interacts with wood through it's particle nature.
Explanation:
LIGHT has dual nature properties . It behaves with waves as a wave and with particles as a particle .
Light can interact with matter in three ways: absorption, transmission, and reflection.
- ABSORPTION :
- When a light wave with a identical frequency to an electron’s natural frequency “impinges” upon an atom, <em>the electrons will begin to vibrate</em> as a result .
- The electrons will absorb the light wave and turn it into a vibrational motion . The electrons, in turn, bump up against neighboring atoms, which<em> changes the vibrations intothermal energy</em> .
- This <em>thermal energy is not turned back into light energy, thus that particular light wave never leaves the object again. This is ABSORPTION.
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2. REFLECTION :
- This occurs when the <em>frequency of the incoming light wave </em><em>does not match</em><em> that of the electrons’ natural frequency. </em>
- If the object is opaque , the electron vibrations are not “passed down” like during absorption.
- Rather, <em>the surface-level electrons vibrate briefly before emitting that wave back out (as light). This is REFLECTION.
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3. TRANSMISSION :
- Transmission works along the same lines as reflection, except it involves transparent or semi-transparent objects.
- The atoms taken in the wave, vibrate briefly (but at a small amplitude) , <em>transfer the vibrations throughout the body </em><em>of the material, and then </em><em>re-emit the wave as light out the other end.</em><em> This is TRANSMISSION.</em>
A soap bar because the material of a carpet or sandpaper is more rough than a soapbar and thus has a higher coefficient of friction.
The speed would increase by however much the acceleration due to gravity is. On earth, I believe that is 32ft/s or 9.8m/s
If the runner ends where she started, then her total displacement is 
, which means her average velocity will be
The total distance she traversed, however, was 
, which gives her an average speed of
<span>Reactants
Hope this helps.</span>
