Answer:
- <u><em>B. longer wavelength and equal speed </em></u>
Explanation:
One important feature fo <em>electromagnetic radiation</em> is that all have the same speed in vacuum, <em>c</em><em>,</em> in vacuum, which is the speed of light.
Since, the speed, wavelength and frequency of the waves are related you can infere any of them when the other two are known.
The equation is:
- speed = frequency × wavelength
- c = ν × λ . . . for the specific case of electromagnetic radiation
That inverse relation between frequency and wavelength, where the speed is the constant, shows that the lower the frequency the longer the wavelength.
In conclusion, the correct statment is that an <em>an electromagnetic wave that has a lower frequency will also have a longer wavelength and equal speed (option B).</em>
Answer:
A. Exposure to air has caused the iron-bearing minerals in the granite to oxidize.
Explanation:
The main cause of granite rust is a metal substance that remains in it's contact over a long period of time. As a result of a moist or wet environment, . a geologist discovers a piece of granite that has a coating of soft, crumbling rust.
Exposure to air has caused the iron-bearing minerals in the granite to oxidize.
Option A. is correct.
1)magnitude
2)chemical composition
3)colour temperature
4)periodicy
The molar volume of any ideal gas at STP condition is 22.4 L
3.20 mol x 22.4L / 1 mol = 71.68 L = 71.7 L
Answer:
5. All of the above.
Explanation:
Energy can be extracted from water by gravitational force as done in hydroelectric plants, temperature gradients that creates natural convection processes, the mechanical variations of ocean currents and surface waves, and by nuclear fussion.
