Answer:
contraction and relaxation of the heart
Explanation:
Edwin Hubble's observation of galaxies revealed that the light received from them were red-shifted, indicating that they are moving away from us. And the seemingly farther away a galaxy was, the greater its red-shift. This can only be explained if a all the galaxies were expanding outward. Determining the exact distances to the other galaxies was a problem, however, until the Hubble space telescope. It had high enough resolution to identify Cepheid variable stars in other galaxies, and accurately determine their distance, and therefore the expansion rate of the universe.eelfins <span>·
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Answer:
The correct answer is: supraspinatus.
Explanation:
Many muscles insert in the humerus - in its greater tubercle, where the fracture took place, is where three of the four rotator cuff muscles insert: <u>supraspinatus, infraspinatus, and teres minor</u>. Avulsion of the greater tubercle could result in detachment of any of these 3 muscles but if we take into account that the 15-year-old boy had <u>difficulty initiating abduction of the upper limb, we can infer that the damaged muscle is the supraspinatus because its main action is to start the abduction the upper limb</u>.
The answer is ; measurement and direction
This means that displacement is a vector quantity because it has magnitude (the measure o displacement) and bearing. Displacement is determined by comparing the initial and final positional vectors of the displaced object. When this displacement is placed against the rate in time at which it is happening, we get velocity.
Answer:
Answer
Explanation:
<em> Understanding planetary habitability is partly an extrapolation of the conditions on Earth, as this is the only planet known to support life.</em>
