A group of hikers hear an echo 2.50 s after they shout. if, Ask an Expert

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Q. A group of hikers hear an echo 2.50 s after they shout. If the temperature is 28.0°C, how far away is the mountain that reflected the sound wave?

Q. A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 826 N.

As the elevator moves up, the scale reading increases to 941 N. Find the acceleration of the elevator.

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Category:- Physics
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