Answer:
1 is the 2nd. 2 is the 1st. 3 is the 1st. 4 is the 3rd
Explanation:
Answer:
Current
Explanation:
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat. Simply put, Convection is the circular motion that happens when warmer air or liquid — which has faster moving molecules, making it less dense — rises, while the cooler air or liquid drops down.
An everyday example of convection is boiling water ; The heat passes from the burner into the pot, heating the water at the bottom. The water at the bottom rises and is replaced by the water at the top of the pot.
This rise of less dense water at a higher temperature and fall of denser water at a lower temperature sets up a convention current circularly until the water boils. This is a typical example of the day to day application of convection currents.
Answer:
From the question we are told that
The length of the rod is
The speed is v
The angle made by the rod is
Generally the x-component of the rod's length is
Generally the length of the rod along the x-axis as seen by the observer, is mathematically defined by the theory of relativity as
=>
Generally the y-component of the rods length is mathematically represented as
Generally the length of the rod along the y-axis as seen by the observer, is also equivalent to the actual length of the rod along the y-axis i.e
Generally the resultant length of the rod as seen by the observer is mathematically represented as
=>
=>
=>
=>
=>
=>
Hence the length of the rod as measured by a stationary observer is
Generally the angle made is mathematically represented
=>
=>
Explanation:
Answer:
Explained
Explanation:
Light from the distance objects can be used to find the luminosity of the object. Once, Luminosity is known that is the energy emitted by the starts are known.
Scientist can now find out the temperature of the stars because Hot objects emit more of their light of short wavelength and cold objects emit more of their light of longer wavelength. Therefore the difference in temperature of the stars can be known.
I would say true. If you are calculating using vectors than it would need both...