Use the figure below to answe
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Answer:
Explanation:
Assume that the distance travelled initially is d.
In order to stop the block you need some external force which is friction.
If we use the law of energy conservation:
a)
Looking at the formula you can see that the mass doesn't affect the distance travelled, as lng as the initial velocity is constant (Which indicates that the force must be higher to push the block to the same speed) therefore the distance is the same.
b) If the velocity is doubled, then the distance travelled is multiplied by 4, because the distance deppends on the square of the velocity.
The wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Given the data in the question;
- Frequency of the light ray;
- Wavelength;
Wavelength can be simply defined as the spatial period of a periodic wave. When the shapes of waves are repeated, the distance over which they are repeated is called wavelength. Wavelength is expressed as;
Where is wavelength, f is frequency and c is speed of light(
)
We substitute our values into the expression above to determine the wavelength of the light ray.
Therefore, the wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.
Learn more about wavelength: brainly.com/question/16776907