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bogdanovich [222]
3 years ago
6

A favorable entropy change occurs when δs is positive. what can be said about the order of the system when δs is positive?

Physics
1 answer:
iren2701 [21]3 years ago
7 0
<span>A favorable entropy change occurs when </span>δ<span>s is positive or when there is an increase in entropy. The concept of entropy tells us that isolated systems tend to go from order to disorder. That is, an increase in entropy means an increase in disorderliness. This is the natural tendency of things. </span>
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A 2.5 m -long wire carries a current of 8.0 A and is immersed within a uniform magnetic field B⃗ . When this wire lies along the
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Explanation:

Let the magnetic field be B = B₁i + B₂j + B₃k

Force = I ( L x B )  , I is current , L is length and B is magnetic field .

In the first case

force = - 2.3 j N

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puting the values in the equation above

- 2.3 j = 8 [ 2.5 i x ( B₁i + B₂j + B₃k )]

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In the second case

L = 2.5 j

Force = I ( L x B )

2.3i−5.6k = 8 ( 2.5 j x (B₁i + B₂j + B₃k )

=  - 20 B₁ k + 20B₃ i

2.3i−5.6k = - 20 B₁ k + 20B₃ i

B₃ = .115

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Part A

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y component of B = 0

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3 years ago
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tensa zangetsu [6.8K]

Answer:

Option C. 30 m

Explanation:

From the graph given in the question above,

At t = 1 s,

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The displacement of the car is 40 m

Thus, we can simply calculate the displacement of the car between t = 1 and t = 4 by calculating the difference in the displacement at the various time. This is illustrated below:

Displacement at t = 1 s (d1) = 10 m

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Displacement between t = 1 and t = 4 (ΔD) =?

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ΔD = 40 – 10

ΔD = 30 m.

Therefore, the displacement of the car between t = 1 and t = 4 is 30 m.

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