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Free_Kalibri [48]
3 years ago
7

A small ball is attached to one end of a massless, rigid rod. The ball and the rod revolve in a horizontal circle with the other

end of the rod at the center. The path of the ball has a constant linear speed. The force exerted by the rod is 0.5 N. The mass of the ball is 3kg. What is the centripetal acceleration of the ball, in m/s2?
Physics
1 answer:
nikklg [1K]3 years ago
6 0

Explanation:

<em>i </em><em>don't </em><em>have </em><em>keyboard </em><em>of </em><em>mathametics </em><em>so </em><em>i </em><em>solve </em><em>this</em>

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Two long, parallel wires separated by 3.50 cm carry currents in opposite directions. The current in one wire is 1.55 A, and the
vaieri [72.5K]

Answer:

Therefore,

The magnitude of the force per unit length that one wire exerts on the other is

\dfrac{F}{l}=2.79\times 10^{-5}\ N/m

Explanation:

Given:

Two long, parallel wires separated by a distance,

d = 3.50 cm = 0.035 meter

Currents,

I_{1}=1.55\ A\\I_{2}=3.15\ A

To Find:

Magnitude of the force per unit length that one wire exerts on the other,

\dfrac{F}{l}=?

Solution:

Magnitude of the force per unit length on each of @ parallel wires seperated by the distance d and carrying currents I₁ and I₂ is given by,

\dfrac{F}{l}=\dfrac{\mu_{0}\times I_{1}\times I_{2}}{2\pi\times d}

where,

\mu_{0}=permeability\ of\ free\ space =4\pi\times 10^{-7}

Substituting the values we get

\dfrac{F}{l}=\dfrac{4\pi\times 10^{-7}\times 1.55\times 3.15}{2\pi\times 0.035}

\dfrac{F}{l}=2.79\times 10^{-5}\ N/m

Therefore,

The magnitude of the force per unit length that one wire exerts on the other is

\dfrac{F}{l}=2.79\times 10^{-5}\ N/m

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3 years ago
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Redox reactions involve the gain or loss of _____.A. neutronsB. phosphateC. electronsD. protons
vovangra [49]

Redox reactions involve the gain or loss of C. electrons

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3 years ago
Which of the following statements is true regarding electromagnetic waves traveling through a vacuum?
kap26 [50]

Answer:

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Explanation:

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                = (3,760 joule/sec) / (4,000 joule/sec)
 
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The correct answer is A and C

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