You replace a 200 w lamp with a more efficient 55 w led lamp. if you leave your lights on 24 hours a day, how much energy are you saving each day by replacing this bulb?
a.21,225,000 j
b.17,280,000 j
c.4,752,000 j
d.12,528,000 j

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.