Answer:
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Answer:
Objects that fall near Earth’s surface are rarely in free fall.
"Free fall" is the situation where the ONLY force on an object is
the force of gravity, and nothing else.
Objects near Earth's surface are almost always surrounded by air.
If they are falling, then the air is exerting forces on them, and they
are not in "free fall".
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Explanation:
Answer:
False.
Explanation:
Kinetic energy means it must move
Answer:2.81 m
Explanation:
Given
speed(u)=13 m/s
dart strikes 0.23 m below
i.e. vertical distance traveled by dart is 0.23 m
considering dart motion similar to Projectile



Horizontal distance travel by dart =u\times t

The purpose of an air filter is to purify the air around you removing particles such as dust from the air.