Saturday
December 20, 2014

Homework Help: physics

Posted by Pauline on Thursday, May 3, 2007 at 6:31am.

swimmers often notice that when they start to swim in a still body of water after a hot sunny day the surface water is warm but the deeper water is cold.
why this happens?explain.
(is it that the heat of the sun can only heat up the surface of the water?)

swimmers often feel colder when they get out of the water even if the temperature of the air and the water is the same.
why is this?and why is the effect more noticeable if there is a breeze?

please help!

OK, I have 2 examples that might help you to understand... about the warm surface/ cold under, think about the ocean... the first few inches or so is warm, but the deeper you get, the colder it gets. It's the same with a pool; It's because there is so much water that it's hard for the sun to heat it up quickly.
As for the other example: You know how when you're playing a sport, you sweat? Then that cool breeze comes in and you feel better? That's how it is with when you are wet. Because of the water being so cold under the surface, your body gets used to that temperature... so when you get out, you still feel cold... Does that make any sense?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics - On a hot summer day in the state of Washington while kayaking, I saw ...
physics - A water slide is constructed so that swimmers, starting from rest at ...
Physics - a) Family Smith has already installed PV in their house. Now, they ...
Physics - You decide to take a nice hot bath but discover that your thoughtless ...
Physics - A river has a steady speed of 0.500 m/s.A student swims upstream a ...
college - In warm climates, drinking water is often cooled by evaporating water ...
physics - an electric hot water heater takes in cold water at 13.0 degrees ...
Physics - A solar still is used to make fresh water from salt water by ...
math help!! - A cart carries 100 pounds of cucumbers. The cucumbers are 95% ...
math for elementry school teacher - A cart carries 100 pounds of cucumbers. The ...

Search
Members