Asume a body is traveling in a strait line with an original velocity of 10 m/s. the body accelerates uniformly and reaches its destination at a final velocity of 29.2 m/s. what is the average velocity of the body?

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?

An architect plans to use solar energy to heat the next house he designs. what principle of absorption and infrared energy can be applied to the design of the new house? how could she apply to those principals?

How does an observation about an object differ from an inference about that object