Which of the following is correct? Multiple Choice A. If demand is elastic, an increase in price will increase total revenue. B. If demand is elastic, a decrease in price will decrease total revenue. C. If demand is elastic, a decrease in price will increase total revenue. D. If demand is inelastic, an increase in price will decrease total revenue.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.

(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