That depends on th its size and style doesn't it?
I have a Karrimor rucsack - I'm not sure of the model and capacity- that weighs about 5lb empty and with its additional zip-on sac removed.
On the other hand a small day-sack may weigh only a few ounces.
A school backpack should weigh less then 15 % of your body weight.
it weighs .2
2 to 4 because any heavier to much pain
depends whats in it. put rocks in it the weigh it... tell me the answer
The A 380's empty operating weight is 600,000 pounds.
1600 lbs
Empty around 35,000 lbs
1lb
About 500 TONS (empty)
500 pounds
an empty bow depending on its size can weigh between 2 oz. to 100 oz. it can though weigh less or more depending like i said on the size of the box
The A 320 weighs 94,000 pounds empty. Other Airbus aircraft are different.