Answer:
5 mm
Explanation:
Youngs's modulus (Y) is described by the following expression:

Where F is the force exerted on the tendon, L is its length, A is its area and ΔL is its change in length (stretching).
The force in this case is 8 times the weight of the runner:

Therefore, the change in length of the tendon is given by:

the runner's Achilles tendon will stretch by 0.004989 m, which is roughly 5 mm.
Answer:
White is every colour.
Explanation:
The filters make whatever they are colour stronger.
Newton thinks that object falls due to gravity whereas Einstein thinks gravity is not the reason behind it.
<h3>How did Einstein’s and Newton’s theories differ in terms of explaining the cause of gravity?</h3>
Newton concluded that objects fall because they are pulled by Earth's gravity. Einstein's thinks that these objects do not fall due to gravity. According to Einstein, these objects and Earth just freely move in a curved spacetime
So we can conclude that Newton thinks that object falls due to gravity whereas Einstein thinks gravity is not the reason behind it.
Learn more about gravity here: brainly.com/question/940770
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There are different kinds of conductors, most notably electrical and thermal conductors. But they are often inclusive of each other (electrical conductors are typically good thermal conductors).
A conductor transmits something through its body with high efficiency while an insulator does not transmit very well. In the case of electricity, a conductor transmits electrical energy between two points while an insulator blocks the flow of electricity.
Two examples of conductors are copper and silver. Two examples of insulators are wood and styrofoam.