Answer:
the difference between the two is that the candle forms an emission spectrum and the book an absorption spectrum.
the book it is observed in all directions so that its reflection has to be diffused
Explanation:
The ray of light emitted by a candle is the light generated by the temperature of the flame, which is made up of the emissions of a black body at this temperature plus the emissions of the chemical elements that make up the candle.
The Light reflected from the cover of a book is the same incident light spectrum minus the wavelengths that create transitions in the elements of the cover, these wavelengths will be seen as dark areas.
As a consequence of the above, the difference between the two is that the candle forms an emission spectrum and the book an absorption spectrum.
For the cover of the book form a specular reflection the incident rays are reflected in one direction and the rest would be dark, but in the book it is observed in all directions so that its reflection has to be diffused
Answer: When a person jumps off the ground the forces internal to his legs are accelerating him upward.
Explanation:
It’s just a guess.
Answer:
We conclude that the total distance traveled by the object in the 4 seconds is 36 m.
Explanation:
Given
- Initial velocity u = 5.0 m/s
- Acceleration a = 2.0 m/s²
To determine
The total distance traveled by the object in the 4.0 seconds is
<u>Important Tip:</u>
We can determine the total distance traveled by the object in the 4.0 seconds by using the equation of motion such as
where
- s = distance
- u = initial velocity
- a = acceleration
- t = time
substituting u = 5.0, a = 2, and t = 4 in the formula
m
Therefore, we conclude that the total distance traveled by the object in the 4 seconds is 36 m.
