A blue flame is a manifestation that the combustion process is complete where there are no formation of carbon monoxide. On the other hand, a yellow flame represents an in complete combustion. Generally, a blue flame is much hotter as compared to a yellow flame so it heat things up faster. Also, it is a much cleaner flame as it does not produce soot which leaves a black residue on the material being heated.
Answer:
A. Far away stars show a red shift and B. Microwave background creation is found all over the observational universe
Explanation:
Red shift in color indicates that galaxies are moving away from Earth. This is proof that the Universe is continously expanding, which also supports the big bang theory.
The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background".
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A shuttle stays in orbit because of the gravitational pull of earth its just like how the moon is able to orbit the earth
It will be 80 miles and it can be done only in 16 min
Answer:
19.0 m/s
Explanation:
First of all, we can find the acceleration of the object by using Newton's second law:
where
F = 200 N is the net force applied to the object
m = 50.0 kg is the mass of the object
a is the acceleration
Solving for a,
Now we can find the final speed of the object:
where
u = 3.0 m/s is the initial speed
a = 4.0 m/s^2 is the acceleration
t = 4.0 s is the time
Substituting,