9 Airplane Takeoff
When an airplane takes off, its speed increases from 300 km/h to 600 km/h, and its
altitude with respect to the ground becomes 600 m.
9.1. What is the nature of the motion of the airplane? Justily.
9.2. Does the kinetic energy of the airplane increase or decrease?
9.3. How do its gravitational potential energy and
mechanical energy vary?
9.4. Where does the mechanical energy gained by
the airplane come from?
Plz help

a.

explanation:

found in the nucleus

has mass of one amu

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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