copper calorimeter weighs 100g when emptied ,400g when half filled of water at 0°c, and 450g when iced at 0°c is added. when some stem passed into the mixture ,its temperature is rised by 10°c Find the quantity of stem added.(specific latent hear of fusion of ice=3.36×10⁵j/kg

It's because 3 if it was 10 it wouldn't look right do it goes up to 4d

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

Answerit is comparative because this experiment is comparing the results of the volume at minimal pressure and then increases it; ; ;

Well i am not very good at this but  i would be guessing 1hope i