You have just finished building a prototype of a race car that is powered by a hydrogen fuel cell. what is the next step in the design process? a) you should test the prototype to see how it performs. b) you should ask for money to build more copies of the prototype. c) you should make modifications to the prototype that will improve it. d) you should build a second prototype that is different from the first and explore how it makes it perform differently.

Explanation:

The first step is running tests. In order to receive money to your project, you need to demonstrate that you have something that works, and to get it, you need to run tests. After tests, you will see if modifications are needed, if that's so, you build a second one, and reproduce tests again, until you get the functional prototype to show to financial institutions.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

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