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16 Jan 2024: Find the time-averaged energy flux vector 〈 I 〉 for (i) a plane harmonic S-wave with u =. B cos(k x ωt), (ii) a plane harmonic P-wave with u = Ak̂ ... An SV-wave with displacement. u = B(cosθ,0, sinθ)eik(x sin θz cos θ)iωt.

9 Jan 2024: given boundary conditions (λ a constant):. (i) r < R with ψ(R,θ) = λ cos θ,. ... ii) r > R with ψ(R,θ) = λ cos θ and ψ(r,θ) 0 as r ,. (iii) a < r < b with n ψ(a,θ) = 0 and ψ(b,θ) =

2 Feb 2024: Let there be a magnetic field B, sothat each molecule has a potential energy mB cos θ (θ being the angle between theaxis of the molecule and the magnetic field). ... N where. zrot =. [. 2I. 2mBβ2. ]. sinh(mβB). Evaluate the total magnetisation, M =

15 Jan 2024: What. motivated your choice? [Suggestions: You could try ψ = cos(πx/2α) or ψ = (α2 x2) for |x| < α and vanishing. ... b. A defect is introduced into the crystal. As a result, the amplitude for jumping.

8 Mar 2024: dt=. 1. Ra, where R2 = k1. Derive the. equationsa(η) = B(1 cos η) , t(η) = BR(η sin η) ,. where B is a constant, and hence show that the universe ... ds2 = sin θ (dφ2 dθ2) 2 cos θ dθ dφ ,. where 0 θ 2π and 0 φ 2π. Show that, for a null

26 Jan 2024: Show that the resulting state is. |ψαβ⟩ = 12 (cos(α β) |00⟩ sin(α β) |01⟩ sin(α β) |10⟩ cos(α β) |11⟩). ... B) to be independent of the choiceof angle chosen and used remotely at B (resp.

3 Jul 2024: This too can be. resolved as. T = T cos r̂ T sin ̂. ... ei!t sin A cos. rg. lt B sin. rg. lt.

12 Jun 2024: x(, ) = ( cos , sin , ) (4.18). with a   b and 0  < 2. ... equation tells us that. µ0I =. Z. C. B dx =. Z 2. 0. d b() =) B(x) =µ0I. 2( sin , cos , 0).

3 Jul 2024: We then define the usual. polar coordinates. x = r cos , y = r sin. – ... l2(4.13). with A and 0 integration constants. (You might be tempted instead to write u =. A cos B sin k/l2 with A and B as integration constants.

2 Jul 2024: 45 –. by a sign, since this can be compensated by the cos function. ... Insisting that the two. cos functions agree, up to sign, gives us the condition.