I) Look at the figure given below and calculate the following Fi=50N
Aizm
A.=12m
P
P2
b)
Pressure P
Pressure P
Force F2
Why must a liquid and not a gas be used in a hydraulic machine?
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magnityde and direction

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

pecialized keyboards

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.