Which of these describes a challenge that the engineer of a high-altitude
airplane would need to consider?
O
A. The airplane will create more drag at higher altitudes than lower
altitudes
B. The airplane may succumb to the power of gravity as lift
decreases at higher altitudes,
O
C. More fuel is used at higher altitudes,
O
D. The airplane may need a heat shield for protection from sonic
booms

For ai it's atomic number is 13 and it's mass number is 27 how many neutrons does it have

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

The primary products of complete combustion of fossil fuels are a. carbon dioxide and water b. methane and water c. carbon monoxide and water d. carbon dioxide and carbon monoxide