Pls solve!!!!! Pls!!!

Dear Student,

B = 2 B_{0} sinθ B = 2 \times \frac{μ_{0}}{4 π} \frac{m}{r^{2}} \times \frac{7}{r} \frac{2 μ_{0}}{4 π} \frac{m}{r^{2}} \times \frac{7}{r} = 0.4 \times 10^{- 4} 2 \times 10^{- 7} \times \frac{7 m}{{(7^{2} + 18^{2})}^{\frac{3}{2}}} \times 10^{4} = 0.4 \times 10^{- 4} m = \frac{4 \times 10^{- 2} \times {(373)}^{\frac{3}{2}}}{14} M = m \times 14 cm = m \times \frac{14}{100} M = \frac{4 \times 10^{- 2} \times {(373)}^{\frac{3}{2}}}{14} \times \frac{14}{100} = 2.88 J / T

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