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2008-07-24 Physics - newtons 3rd law: It is applying the same force. The third law is not violated. The reason it accelerates forward far less than your bat that hits it accelerates backwards is that the ball's mass is far lower. So a bat...
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2008-07-24 Physics - air as an insulator: Short answer: density. Air has about a thousand times less molecules/volume to conduct heat. Caveat: it's not always a great insulator. It's good if there's no convective flow (such as tiny air...
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2008-07-24 Careers: Physics - newtons 3rd law: Hi Jeff, Newtons' 3rd law makes no difference between soft and hard objects. A difference occurs in the question, how much energy is recuperated in the mechanical (kinetic) energy and how much will be...
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2008-07-24 Thermodynamics - Thermodynamics: Hi Rick Kinda tough this one. Hot tubs generally run on a thermostat to control the tub temperature (that is an electronic switch which cuts the power when the water is at temperature) . If you put...
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2008-07-24 Physics - Broken window: I think the logical conclusion is that you're correct. A blunt or sharp object breaking the window from the inside would've resulted in scratches to the screen on the inside from the shards of glass being...
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