4. determine a) the content (%) of the element ofinterest contained in the following minerals and b) the total value of a 100,000 short ton ore reserve for each mineral (requires looking up market prices; provide a reference for your market price) assuming a mineral content of 1% for each source: example: a.) research which element is of economic interest and reference slides to calculate content as a percentage b) assume 1% of your tonnage is the mineral listed. look up market price. may need to convert market price units (tons to oz) a. ores: chalcocite (c2s) and cassiterite (sno2)

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied

i belive it is water