Suppose an Oklahoman comes to Texas to go turkey hunting. He takes up camp 150 meters from the base of a cliff. When he sees a turkey he raises his shotgun, shoots, but misses (being a poor shot). He notices that he hears the echo of his gun off the cliff. How much time (in seconds) passes after the shot before the hunter hears the echo?

0.44s

Explanation:

Given parameters:

Distance from the turkey  = 150m

Unknown:

Time taken to hear the sound  = ?

Solution:

The speed of sound is the distance traveled per unit of time for a sound wave.

It is given as a constant which is 343m/s

As with this parameter:

         Speed  =  

         Time  =   =    = 0.44s

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

confused

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