Answer:
A) True
Explanation:
Researchers have detected numerous jets of gas ejected from poles of young stars and planetary nebulae.
By examining images of hydrogen molecules excited at infrared wavelengths, scientists have been able to see through the gas and dust in the Milky Way, in order to observe the most distant targets. These goals are normally hidden from view and many of them have never been seen before.
The entire study area covers approximately 1,450 times the size of the full moon, or the equivalent of an image of 95 gigapixels. The survey reveals jets emanating from proto-stars and planetary nebulas, as well as remnants of supernovae, the illuminated edges of vast clouds of gas and dust, and the warm regions that surround massive stars and their associated groups of smaller stars.
The answer to your question is c.
Answer:
Explanation:
From the question we are told that
Diameter of the cylinder 
Length of the cylinder 
Surface temperature of cylinder 
Speed of air 
Temperature of air 
Generally the equation for Reynolds number is mathematically given by
where
Generally the equation for Nusselt number is mathematically given by
where
Prandtl number
Generally the equation for convective heat transfer is mathematically given by
where
Generally the equation for surface area of a cylinder is mathematically given by
Generally the equation for convective heat transfer is mathematically given by
Correct answer choice is:
B. 50 percent
Explanation:
France Capitulates to Nazi Germany. On June 22, 1940, the French state approved a cease-fire with Nazi Germany just six weeks after the Nazis began their incursion of Western Europe.
Paris began preparing for combat in September 1939, when Nazi Germany overran Poland, but the combat appeared far beyond until May 10, 1940, when the Germans invaded France and immediately took the French troops. The French administration left Paris on June 10, and the Germans controlled the capital on June 14.
Thats what a compression looks like in a sound wave
