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Question by science teacher: Any ideas? They are drilling holes in our power poles and digging at the bases?
The drill bit is about 1/2 inch.The holes are about 3 feet from the ground, some poles have more than one hole. They seem to be doing this all over town. Now the holes are filled. They dug all around the poles, but not very deep.The poles are telephone, power poles and are creosoted.. What are they doing this for?
Best answer:
Answer by fill Yerboots
they could have been checking for rot, sometimes the outer skin of the pole looks fine but the centre goes soft, then next thing someone gets a pole on their swede
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Question by poodle mom: belt sanding in the “rain”?
pressure washed our porch…the pressure was a bit much, blew chunks out of the porch. people tell me to use a belt sander, its been raining…gotta get this porch done. can i sand the wood while its damp? or does it have to be bone dry? thanks…im desperate
ok…first, its not raining NOW, it has all night. the porch is covered, so the wood isnt soaked…maybe a bit damp.
Best answer:
Answer by Brewboy62
Do it dry if possable don’t think using a power tool in the rain is too smart 
What do you think? Answer below!
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Question by Amber J: What is the age of the ancient sample?
Suppose you measure the intensity of radiation from Carbon-14 in an ancient piece of wood and find that it has 6.25% the activity of a freshly cut piece. What is the age of the ancient sample? (Carbon-14 has a half-life of 5730 years.)
HELP: A fresh cut piece of wood has 100% activity of Carbon-14.
HELP: How many times do you have to cut the initial activity in half to get your final activity? This is how many half-lives occur from the time that piece of wood was alive.
Best answer:
Answer by reaper
go here
http://www.1728.com/halflife.htm
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Question by WIL: My girlfriend as a face like a bulldog chewing a wasp should i buy her a make-over or power tools?
Best answer:
Answer by George C
LOL. A make over.
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Question by Emmy J.: calculating the heat absorbed and heat released?
A 12.0 gram block of wood is burned under a container of 30.0 grams of water. Make the assumption that all the heat given off by the burning wood is transferred directly to the water via conduction and convection. The initial temperature of the water is 25.0 °C and the final temperature of the water is 30.0 °C.
Calculate the heat absorbed by the water. Show all calculations including formulas and units of measure.
Calculate the heat released per gram of wood. Show all calculations including formulas and units of measure.
Best answer:
Answer by SciMann
_____Calorimetry
heat released = heat gained
heat gained = 4.18 J/gC * 30.0 g * (30.0- 25.0)C = ??
heat released per gram = heat gained by water / 12.0 g wood = ??
Plug and SOLVE
Basic mathematics is a prerequisite to chemistry – I just try to help you with the methodology of solving the problem.
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