The first tennis balls were made of what material?

Explanation:

Leather stuffed with human or horse hair and wool.

The first tennis balls were made of rubber

Explanation:

In the 18th century, strips of wool were tightly wound round a nucleus made of cork. Tennis balls with a cork core and cloth covering are still used in the original game of tennis, known as Real Tennis. In 1870, vulcanized rubber was first used to manufacture tennis balls.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.

when comparing the cases, what similarities are there in the cases that suggest one person committed these murders?