Answer:
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Explanation:
When the elevator is going up (assuming the elevator is acceleration)
When the elevator is accelerating downwards, the total gravitational force would be larger.
If the elevator is accelerating upwards, then the gravitation force would be smaller, thus the tension in the string would be smaller.
Answer:


- Energy increases
Explanation:
From the question we are told that
Work done 
a)Generally the heat flow for an adiabatic process is 0 (zero)


b)Generally Change in internal energy of gas is mathematically given by
Since 
Therefore

Giving


c)With increases in internal energy brings increase in temperature
Therefore
Energy increases