Avehicle is only 15% efficient. what happened to the other 85%?

Which statement best describes how private industry decides where to spend the money on research and development

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

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