carsondelane13
25.03.2021 •
Physics
A boat crosses a 60 meter river with a current of 0.9 m/s. The boat can travel 1.4 m/s in still water. The boat points it bow (front) 30o upstream into the current..
A. Determine the X &Y components of the boat’s velocity.
B. How long will it take the boat to cross the river?
C. Where will the boat reach the other side of the river relative to the boats point of origin?
D. What is the relative magnitude and direction of the velocity of the boat from its point of origin?
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Ответ:
Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it.