Horse jockeys are typically shorter people. There is no average for their weight though it is doubtful they weigh much.
How much a 16.5 hand horse should weigh generally depends upon the size of the horse. As a general estimate, it should weigh about 650 KG.
They dose weigh a lot
every horse does not way the same
About 10 milligrams.
the horse head weigh as much as 11.5 or 26 in proportion its body weight..
10kg
It weigh's about 2 mg or 0.002 g
Ducks do not weigh anything, this is because they float and fly
As much as a normal lightweight horse, probably in between an Arabian and a Quarter Horse.
1,000 pounds
Depends on the breed