Answered: A coin is dropped down to a wishing…

A coin is dropped down to a wishing well with a depth X and 5 sec later, the sounds of the splash is heard. Assume the velocity of sound is 440 m/s, what is the value of X

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter1: The Study Of Motion

Section: Chapter Questions

Problem 9C

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Concept explainers

Shock Waves

Shock waves are common in continuum mechanics, and their dominance is attributable to the fact that they are stronger (or even less) compressible. Substantial perturbations propagated as sudden dynamic changes of a compressible medium supersonically. Shock waves are all around us in our daily lives. Lightning, earthquakes, volcanic eruptions, and meteorite impact all produce them in nature. Even the earth, which is protected by its magnetic field, generates a shock wave as in solar wind that travels around 20 Earth radiuses. These shock waves might be either constant, linked to the body, or unsteady, i.e., moving around with time. All of the shocks mentioned above can be damaging, so precautions must be taken to reduce their impact.

Question

k. answer 2 and 3 in HANDWRITTEN pls

KINEMATICS
1. A particle decelerates uniformly at 3 m/s2 for 12 s and reached its destination at 24 m/s.
a. Calculate the initial Velocity.
b. Calculate the total distance it travels.
c. How long will the particle take to come to rest from its destination?
2. A coin is dropped down to a wishing well with a depth X and 5 sec later, the sounds of the
splash is heard. Assume the velocity of sound is 440 m/s, what is the value of X
3. A ball is thrown vertically upward with a velocity of 81m/s, after 5 seconds, another ball
is thrown vertically upward. Find the initial velocity of the second ball in order to meet the
first ball 150 meters from the ground.

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