Answer:
3
Explanation:
1-3 age is hard to remember
Answer:
If an object moves twice as fast its kinetic energy quadruples.
Explanation:
The kinetic energy (K₁) of a body of mass (m) that moves with speed (v) is:
K₁= 1/2 * m* v²
If we double the speed of the body, its kinetic energy (K₂) will be:
K₂= 1/2 * m*( 2v)²
K₂= 1/2 * m* 4 *v²
K₂= 4(1/2 * m *v²)
K₂= 4*K₁
Most stars have one or more terrestrial planets orbiting within their habitable zones is the correct answer.
Explanation:
According to the science, the habitable zones are the region around the stars where one or more terrestrial planets can orbit. A terrestrial planet orbits inhabitable zone is called potentially habitable zone which have roughly comparable conditions to those of earth.
This situation is a proof stating that most of the stars have one or more terrestrial planets orbiting within their habitable zone.
<u>(A). The wavelength decreases by a factor of 3</u>.
<h3>Introduction :</h3>
Hi ! We all know that all type of electromagnetic wave, will have the same velocity as the speed of light, because light is part of electromagnetic wave too. The value of it is 300,000 km/s or m/s. As a result of this constant property, <u>the shorter the wavelength, the greater the value of the electromagnetic wave frequency</u>. This relationship can also be expressed in this equation:
With the following condition :
- c = the constant of the speed of light in a vacuum ≈ m/s
- = wavelength (m)
- f = electromagnetic wave frequency (Hz)
<h3>Explanation</h3>
In this problem, we underline one concept, namely : "<u>the shorter the wavelength, the greater the value of the electromagnetic wave frequency</u>". In question, the frequency of the waveform will increase by a factor of 3 from the beginning. So, to keep this value constant, the wavelength should be reduced by a factor of 3 from the initial condition.
<h3>Proof</h3>
Assume that:
- c = c' = speed of the electromagnetic wave is always the same (constant).
- = initial wavelength =
- f = initial frequency = f
- f' = final frequency = 3f
Let we count :
- = final wavelength = ...
Step by step :
(Q.E.D)
<h3>Conclusion</h3>
So, if the frequency value is increased by a factor of 3 from its original, then the wavelength will decrease by a factor of 3 from the original.
<h3>See More</h3>
No the answer is C at the seafloor spreading centers