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>
Answer:
The done by the vertical component of force is zero.
Explanation:
Given data,
The mass of the textbook the women pushes horizontally, m = 3.2 kg
The displacement of the textbook, S = 3.5 m
Let the force of the women acts on the book horizontally,
Therefore, the horizontal component of force is maximum and the vertical component is zero.
If F is the force applied by the women, then the horizontal and vertical component of the force is,


Since the force is acting along with the horizontal x component, the vertical component of the force is zero.
Hence, the done by the vertical component of force is zero.
Kinetic energy because it's moving
Answer:
<h3>The answer is 15000 N</h3>
Explanation:
The force acting on an object given it's mass and acceleration can be found by using the formula
force = mass × acceleration
From the question we have
force = 1500 × 10
We have the final answer as
<h3>15,000 N</h3>
Hope this helps you
Answer:
10259.6 m
Explanation:
We are given that
Radius of small wheel,r=0.17 m
Radius of large wheel,r'=0.92 m
Initial velocity,u=0
Time,t=2.7 minutes=162 s
1 min=60 s
Velocity,v=10m/s
Time,t'=13.7 minutes=822 s
Time,t''=4.1 minutes=246 s

Substitute the values



Substitute the values




Total distance traveled by rider=s+s'+s''=809.6+8220+1230=10259.6 m