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ololo11 [35]
2 years ago
13

Circumference of a circle given the radius or diameter? explain why or why not

Physics
1 answer:
djyliett [7]2 years ago
3 0

Circumference of a circle can be calculated if the radius or the diameter is given.

<u>Explanation</u>:

  • Circumference or the perimeter of a circle can be calculated if the radius or the diameter of the circle is given.
  • This is calculated by the formula -  2 * pi * r (if radius is given) and  pi * d (if diameter is given) where pi = 3.14, r = radius and d = diameter
  • This calculation is based on the fact that the circumference is three and a little more times that of the radius. Since the diameter is double that of the radius, when the diameter is given formula becomes pi*d.
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Answer:

  t = 0.319 s

Explanation:

With the sudden movement of the athlete a pulse is formed that takes time to move along the rope, the speed of the rope is given by

             v = √T/λ

Linear density is

           λ = m / L

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The tension in the rope is equal to the athlete's weight, suppose it has a mass of m = 80 kg

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The pulse rate is

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          v = 62.6 m / s

The time it takes to reach the hook can be searched with kinematics

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7 0
3 years ago
12. Which of the following statements about
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A seems to be correct
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2 years ago
What is the approximate size of the Earth's magnetic field? (dont ask me to specify thats what the question is and im as confuse
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Answer:

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Explanation:

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