PLZ HELP ASAP Which term describes the storm of gas that forms columns that shoot into space and return to the Sun’s surface?
nuclear fusion
sun spot
solar flare
solar prominence

The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?