Well, let's take it the other way. If you have a rather low voltage (220 volts -- Europe -- is low) you'd get a high current, which more easily dissipates as heat, resulting in loss of energy. Using a high voltage you have a low current which could easily be transported with almost no loss.
Explanation:
let's assume that:
v1= 600ml=0,6l
T1=27°C= 300K
p1=700mmHG=93326Pa
T2=-20°C=253K
p2=500mmHg=66661
V2=?
p1V1/T1=p2V2/T2 => V2=p1V1T2/p2
V2= 93326*0,6*253/66661
V2=212,52l
If you look at the picture you will see how, but the answer is 0.5 Hz.
Answer:
0.104 m
Explanation:
Stress, 
Where F is force and A is area. Also, F=mg where m is mass and g is acceleration due to gravity

where
is the elongation and l is the original length

Making
the subject then

By substituting the given values and taking g as 9.81 then
