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7nadin3 [17]
3 years ago
14

you and a friend setup an umbrella and chairs at a beach. your friend goes into the surf zone while you relax on the sand. sever

al minutes later, your friend is surprised to find that they are no longer where the chairs and umbrella were setup. although still in the surf zone, they are 30 to 40 meters from where they started. how would explain to your friend why they moved along the shore
Physics
1 answer:
Dmitrij [34]3 years ago
8 0

Answer:

Backwash effect

Explanation:

Your friend moved along the shore due to ; The swash effect and the Backwash effect

Swash effect is caused by the upsurge of water up along the slopping front of the beach  and this same upsurge in water moves back into the beach in what is known as the backwash effect hence the movement of your friend form where they were in the surf zone to another position still within the surface zone is caused by the BACKWASH EFFECT

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3 years ago
You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ?
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Answer:

d. 50 C

Explanation:

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2 years ago
A 1150 kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 7.69 m before contacting the beam,
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Answer:

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Explanation:

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Let's start looking for the stack speeds, it has a free fall, from rest  (Vo=0)

             

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             t = 1.26 s

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                F t = pf-po

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                F = -11226 N

This is the average force exerted by the stack on the vean

7 0
3 years ago
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