Physics
When a constant force acts on an object with a mass of 8 kg for a duration of 3 s. it increases the object's velocity from 4 m/s to 6 m/s . What is the magnitude of the applied force?

5.33 N
3.33 N
6.33 N
4.33 N

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Physics
Inside an aeroplane, flying at a high altitude,

normal humidity and partial vacuum are maintained.
normal atmospheric pressure is maintained by the use of air pumps.
the pressure inside is less than the pressure outside.
the pressure is the same as that outside.

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