A pumpkin was fired from a cannon that is 10 m from the ground. The initial velocity was
at 15m/s. · How long would the pumpkin be in
the air?
How far away from the cannon would the
pumpkin land?

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

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.