Clasificar las siguientes sustancias consideradas como residuo, justificando su respuesta: a. Sulfato de sodio. b. Hidróxido de calcio. c. Acido benzoico. d. Cloruro de sodio. e. Yodoformo. f. Propano nitrilo. g. Nitrato de plata. h. Acetaldehído. i. Cianuro. j. Aceite mineral. k. Sulfato de mercurio. l. Cloro amina.

the dependant variable is spilled water

the independent is the heat

(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