Two small spheres with mass m = 14.1 g are hung by silk threads of length L = 1.18 m from a common point (Figure 1). When the spheres are given equal charges, so that q1=q2=q, each thread hangs at an angle θ = 24.0 ∘ from the vertical. Find the magnitude of q. Express your answer in coulombs.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?