An astronaut is floating in outer space. She needs to find her air tanks or she will be doomed. She only has time to unlock one of the three cases. She knows that the air tanks are in the most massive tank. How can she find out which case is the most massive? Weigh all of the cases using a scale.

Determine which case has the greatest volume by multiplying height x width x length.

Apply an equal amount of force to all three cases and see which has less acceleration.

It is impossible to tell which is which.

Wish i knew this to !

Inner peace.. jk it's  a stable electron configuration

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

1. electricity2. discharge: )