A stainless-steel-bottomed kettle, its bottom 27 cm in diameter and 2.4 mm thick, sits on a burner. The kettle holds boiling water, and energy flows into the water from the kettle bottom at 900 W .What is the temperature of the bottom surface of the kettle? Thermal conductivity of stainless steel is 14 W/(m⋅K).

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?