A cow skull weighs about 8-12 pounds (with the lower jaws attached), and a head with flesh weighs about 20-30 pounds
Average weight is around 1600 lbs.
Mature cows will weigh an average of 1,250 lbs and mature bulls will weigh approximately 2,000 lbs.
Gelbvieh cows typically weigh between 1300 and 1800 lbs; bulls weigh around 2200 and 2700 lbs.
Males called bulls weigh 850 and 1580 pounds and females called cows weigh 600-800 pounds.
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Not all broccoli heads weigh the same, as each will weigh according to their growth.
1 ton = 2000 pounds, so the truck and the cows together weigh 5000 pounds or 21/2 tons.
That all depends on what the weight of each of the cows are. Cows, being mature female bovines, can weigh anywhere from 500 lbs to over 3000 lbs, depending on their breed or breeding.
How_much_does_an_average_adult_African_elephant_weighThat page has the answer.
Cows can weigh from as little as 900 lbs to as large as 1800 lbs. Bulls weigh from as little as 1700 lbs to more than 2800 lbs.