1. How do models help engineers effectively improve their designs?

Models help engineers effectively improve their designs by showing them the flaws and areas that they need to improve on.

Explanation:

Instead of having to look through different drawings to see the interior and exterior of projects, trying to picture what the project will look like in real life, 3D models allow you to see a built-to-scale representation of your projects.

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8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >