A meteorite of mass 1kg enters the Earth’s atmosphere and decelerates from 99m/s to 1m/s due to air resistance. What is the work done by the air? A. 98J
B. 4900J
C. 9800J
D. 19600J

The earths atmosphere is made up of nitrogen and oxygensolids turning into gases is called sublimation.

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Iwould think it is temperature, silica, oxides (gases)