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2008-10-04 Thermodynamics - physics: Hi Dayle This sounds like a homework question. You need to assume that there are no heat losses to the air from the cup, hot water and spoon. Then you need to know the start temperature of the brass...
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2008-10-03 Chemical Engineering - polypropylene: Hi, The polypropylene (PP) itself can not adsorb the wave energy in the range of kitchen microwaves! So it means that you can use PP container to warm your food in the microwave, but you can not heat...
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2008-10-02 Thermodynamics - chemical effects on wood: Hi Sally Good effects can be got from a cool bunsen flame on wood also with a hot bunsen flame on metals. Remember, with wood, that rubbing oil in (olive oil is good) brings out the grain after any...
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2008-10-02 Thermodynamics - Physic -- Heat: Hi Dee More heat will pass down the thicker rod, as the equation shows, but heat will travell faster down the thinner rod, which was your question! In other words the thin rod will be hotter at a point...
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2008-10-01 Thermodynamics - chemical effects on wood: Hi Sally An interesting question. First off PLEASE if you are going to use chemicals be very careful. You MUST wear gloves and eye protection. Also 'work clean' that is do not touch things with...
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