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zimovet [89]
1 year ago
13

Find the magnitude of this vector:

Physics
1 answer:
xeze [42]1 year ago
3 0

Answer: = 25. 5 m

Explanation:

  • 2-D vectors can be solved using the Pythagorean theorem:  
  • a^{2} +b^{2} =c^{2}
  • The hypotenuse, or longest side is not given and that is what must be solved for
  • Direction can be omitted as the question only asks for magnitude
  • Magnitude: is the distance or quantity in which an object moves during motion

Solve for C using Pythagorean theorem:

1. \sqrt{a^{2}+b^{2}  }=c

2.  \sqrt{22.2 m ^{2} +12.6m^{2} } =c

3. 25.52646 m= c

  • round to lowest number of significant digits  when dividing and multiplying
  • rounded to 3 significant digits

∴ Magnitude of the vector is 25.5 m

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wariber [46]

Answer:

Part a)

v = 12.45 m/s

Part B)

F_n = 0.05 N

Explanation:

Part A)

As we know that the point A lies on the top of the loop

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mgH = \frac{1}{2}mv^2 + mg(2R)

so the speed at point A is given as

mg(H - 2R) = \frac{1}{2}mv^2

v = \sqrt{2g(H - 2R)}

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v = 12.45 m/s

Part B)

Now the force equation at point A is given as

F_n + mg = \frac{mv^2}{R}

F_n = \frac{mv^2}{R} - mg[/tex]

F_n = 0.004(\frac{12.45^2}{7} - 9.81)

F_n = 0.05 N

6 0
3 years ago
A pneumatic system consists of several identical 1.5 inch diameter cylinders to lift 450-pound pallets in a warehouse. the gauge
DerKrebs [107]
The applicable equation:

P = F/A

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Pressure on each cylinder = (W/n)/A
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Therefore,
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60.3*1.7671 = 450/n
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The number of cylinders is 5.
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Answer:

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Anna Litical is practicing a centripetal force demonstration at home. She fills a bucket with water, ties it to a strong rope, a
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Answer:

Explanation:

Suppose when bucket is half full it has a mass of 2 m rotating in a circle of  radius r

When Bucket is quarter full then it has a mass of m rotating in a circle of radius r.

When an object moves in a circular path then it experiences an inward force which is given by

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