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Q. Three building materials, plasterboard [k = 0.30 J/(s m Co)], brick [k = 0.60 J/(s m Co)], and wood [k = 0.10 J/(s m Co)], are sandwiched together. The temperatures at the inside and outside surfaces are 29.3 oC and 0 ^oC, respectively. Each material has the same thickness and cross-sectional area. Find the temperature (a) at the plasterboard-brick interface and (b) at the brick-wood interface.

Q. Five equal-mass particles (A-E) enter a region of uniform magnetic field directed into the page. They follow the trajectories. Rank the particles on the basis of their speed.

Rank from largest to smallest. To rank items as equivalent, overlap them.

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