Large Round Air What does Vaseline do for cuts, scrapes, etc.?
I had a skin biopsy done a few weeks ago and my doctor told me to change the band aid on the wound every day and clean with hydrogen peroxide and vaseline. What is the vaseline really doing? I know that the doctor said the less air that hits the open cut the better, since I will have a fairly large round scar and we want to keep it as small as possible. Is the vaseline protecting it from the air? Or something else? Just curious...
The vaseline acts as a barrier for infection from bacteria and also prevents the wound from drying out and forming a scab. The less scabbing you have on a large wound, the smaller the scar will be, if any. I learned this from my podiatrist when I had a toenail removed. With a surface wound, doctors will actually want a scab to form and act as a seal while the skin heals. With a deeper wound, such as a biopsy, the body has to fill in much more than just skin. It needs to replace the blood vessels and any other healthy structures that were removed. If a scab were to form on a deeper wound, there is a chance that those new vessels may die and cause the wound to heal much slower.
A catapult on a cliff launches a large round rock towards a ship on the ocean below.?
A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 35.0 m above sea level, directed at an angle theta = 45.7° above the horizontal, and with a speed v = 29.9 m/s. Assuming that air friction can be neglected, calculate the horizontal distance D traveled by the projectile.
This is one of those questions where you have to consider vertical and horizontal motion separately and use the equations of motion.
Use vertical motion to find the time for the rock to hit the sea - then horizontal motion to find horizontal distance.
For horizontal motion (using s = ut)
s=(29.9)(Cos45.7)(5.635)
s=117.67m (horizontal distance travelled)
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I cant scream anymore , I am tired from protesting the Mosque at Ground Zero..
BUT I CAN STILL TYPE LOUD! THAT IS SO MUCH B.S I think we could fertilize Death Valley with it. And you know all those in prison, we are paying for them to just sit on there butt and plan more ways to cause trouble when they get out. Going to prison does not cure anything, it only sends the criminals to Criminal School. Not only that it is way to comfy for them. How about No T.V , NO radio, No weights to lift, No A.C.. And they should be growing there own food and working on the chain gangs. Prison is to easy for these hardend criminals.
This country is so messed up. But the good news is AMERICA is starting to Wake up.. Finally.
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