PLZZZ HEELLPP ASAP A glass vessel contains tungsten balls and is filled with mercury to a certain mark. It is found that the mercury level always remains at this
mark when the glass vessel is heated. What is the ratio of volume of Hg
to that of tungsten at 0°C. (linear expansivity of glass= 8 x 10^-6 /°C , cubical expansivity of mercury
18 x
10^-5 /°C and linear expansivity of tungsten= 4.4 x 10^-6 /°C)

P

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j

Iwould have to say sorry i can't elaborate more. hope this though!

Hi. i believe this is called a scientific  theory.cheers!