False assumption.
A full cylinder is heavier than empty. The cylinder is filled by weight.
A football with no air is heavier than a football with full air because the air adds buoyancy and makes it lighter.
Lithium batteries are made up of different chemicals than regular batteries to help it last longer and be easier on the environment when they are dead.
A full tire is heavier than a flat tire. When a they are both flat they weigh the same but added air makes the full tire heavier.
What kind of question is this? If I have a button cell, then a 15000 microfarad 16v capacitor will obviously be heavier, and a 1 microfarad 50v capacitor will weigh less than an AA battery, which will be lighter than a high voltage supercapacitor.
"Dead weight" typically refers to an object that adds no value or purpose. In terms of physical weight, dead weight is not inherently heavier than any other object of similar mass. The weight of an object is determined by its mass and the gravitational force acting on it.
Of course it is possible but more than likely you have 1 or more batteries with a dead cell. This will drain all the other batteries. You need to have all the batteries checked to make sure.
A full bone is definitely heavier than a hollow bone, hope this helps.
the camera with four AA batteries would die faster because that indicates it need more power than a camera that only needs two AA
The weight of the box felt heavier than expected as I tried to lift it.
You need a light but powerful dc motor, a propeller, and a few button batteries (or other kinds like AA or 9v, but those are usually heavier than what you need in button batteries). Rig them together so the button batteries are lined up parallel to each other and attach them and the prop to the motor. Diagram- ..----------.---------- propeller ..............| ..............| shaft ..|-------------------| ..|-------------------| motor ..|-------------------| ..|-------------------| ...........\/ batteries (slashes are motor wires, vertical are batteries)