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erastovalidia [21]
3 years ago
12

How do scientists determine where an earthquake starts?

Physics
2 answers:
azamat3 years ago
5 0
Scientists use a method called triangulation to determine where the earthquake was. It is called triangulation because a triangle has three sides, and it takes three seismographs to locate an earthquake.
ra1l [238]3 years ago
4 0
<h2>Answer:</h2>

<u>They can find the starting point of earthquake </u><u>by seismometer</u>

<h2>Explanation:</h2>

The epicenter of earthquake can be found by calculating the distance of seismometer and the  time taken by it to reach the siensmometer. The meter is placed on a rock or somewhere where the surface is not shaky and a firm reading could be taken. They should be placed away from noise sources like traffic noise or any other noise. There are two types of waves that are taken into consideration. These waves are called P waves and S waves which are responsible for determining the location of the earthquake.

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It mimics the real world accurately

Explanation:

Experiments conducted in the field clearly presents the real world at it is to the scientist. Hardly can any part be controlled precisely and this gives a near to perfect scenario.

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4 years ago
During a tennis volley, a ball that arrives at a player at 40 m/s is struck by the racquet and returned at 40 m/s. The other pla
Butoxors [25]

Answer:Racquet force is twice of Player force

Explanation:

Given

ball arrives at a speed of u=-40\ m/s

ball returned with speed of v=40\ m/s

average Force imparted by racquet on the ball is given by

F_{racquet}=\frac{m(v-u)}{\Delta t}

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\Delta t=time of contact of ball with racquet

F_{racquet}=\frac{m(40-(-40))}{\Delta t}

F_{racquet}=\frac{80m}{\Delta t}-----1

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F_{player}=\frac{m(0-40)}{\Delta t}

F_{player}=\frac{-40m}{\Delta t}-----2

From 1 and 2 we get

F_{racquet}=-2F_{player}

Hence the magnitude of Force by racquet is twice the Force by player

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Answer

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