Answer:
Explanation:
1- Density increase as the temperature decreases. This is the reason why liquid water is more dense than solid water.
2- The only things that affect the period of a simple pendulum are its length and the acceleration due to gravity.
3- not really sure for that one...I will think about that.
4- same reason for number 3
Answer:
The physical change of the butter in the microwave is the butter melting
Explanation:
Answer:
Absorbed solar radiation undergoes irreversible degradations, transferring from reservoir to another converting from light energy to radiation energy.
Explanation:
The solar energy cycle functions in the following form:
- Considering that 100% of energy is directed at earth.
- When 100% light is incident on the Earth's surface about 6-7% of it is reflected back by the atmosphere into space.
- 20% is reflected back by the clouds.
- And about 4% is reflected back by Earth's surface.
- 16% of solar energy is absorbed by the atmosphere, 3% is absorbed by clouds and 51% is absorbed by land and ocean.
- From the absorbed energy, 64% is radiated back to space from clouds and atmosphere and 6% is directly radiated back to space from earth.
- From the radiated energy 15% is absorbed by the atmosphere and 23% is carried by the clouds and atmosphere through the latent heat in water vapor.
Therefore, absorbed solar radiation undergoes irreversible degradations, transferring from reservoir to another converting from light energy to radiation energy.
Learn more about solar energy here:
<u>brainly.com/question/18175736</u>
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Answer:
b)
Explanation:
Given that
The power source still connects it means that the voltage difference will be same in above both condition
As we know that
Or we can say that
----1
Where d is the distance between two plates ,A is the area.
When K=4.2 and distance become double
----2
Now from equation 1 and 2
So
Answer:
i found this on google "A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates. In practice, this is advantageous since NAND and NOR gates are economical and easier to fabricate and are the basic gates used in all IC digital logic families.
"
Explanation:
