Question

In 200920092009, Usain Bolt set the world record for sprinting 100 \text{ m}100 m100, start text, space, m, end text in approximately 9\dfrac359
5
3
​
9, start fraction, 3, divided by, 5, end fraction seconds.
Find his average speed in meters per second.

Answer 1

Answer:

From their earliest days, the hunter-gatherer diet included various grasses, tubers, fruits, seeds and nuts. Lacking the means to kill larger animals, they procured meat from smaller game or through scavenging. As their brains evolved, hominids developed more intricate knowledge of edible plant life and growth cycles.

Step-by-step explanation:

Hope this helps you mate xD

Answer 2

Answer:

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During a single cycle blood goes twice in the heart which is known as double circulation. It is necessary in human being to separate oxygenated and de-oxygenated blood because this makes their circulatory system is more efficient and helps in maintaining constant body temperature.

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