Se sueltan una hoja y un bollo de papel, al mismo tiempo y desde una misma altura, ¿Por qué el bollo tarda menos tiempo en caer?

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

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?

Infrared radiation has wavelengths that are shorter than visible light is part of the visible light spectrum has wavelengths that are longer than visible light has the same wavelengths as ultraviolet radiation