Answer:
Solar and nuclear power generate more than 99 percent of our civilization's energy. Every other important source of energy is a combination of these two. The majority of them are solar in nature. We discharge previously collected solar energy when we burn wood.
and
Nuclear energy, fossil energy (oil, coal, and natural gas), and renewable energy (wind, solar, geothermal, and hydropower) are all examples of primary energy sources.
Explanation:
Answer:
K
Explanation:
Given that
Elements Density
K 0.86 g/cm³
Ca 1.5 g/cm³
Sc 3.2 g/cm³
Ti 4.5 g/cm³
As we know that density of the BCC ( body centered cubic )element is lower than the FCC(Face centered cubic )element.
In the given problem only K have lower density all of these element that is why is in BCC and all others are in FCC.
The packing efficiency of the FCC structure element is higher than the BCC element that is why FCC is more denser than BCC.And also FCC having good packing of element.
The source of energy that keeps the Sun shining today is _________.
<u>Is nuclear fusion</u>
~Hope this answers your question!~
Answer:
1) Vp = 127.36 m/s
2) According to the reference given: 252.17°
Explanation:
For the first part, we know that
So, the speed of the plane respect to ground is:
Vp = 127.36 m/s
For the second part, we calculate the angle:
on the third quadrant. According to the reference given, we need to make 270° - α, so:
The final angle is 252.17°