James took two pea plants placing one in a dark closet and the other on a sunny window sill both are located in air-conditioned rooms he then measured the growth of each plant after a week which of the following best describes the purposes of this experiment a. to determine the effect of sunlight on plant growth b. to determine the effect of air-conditioning on plant growth c. to determine the effect of enclosed spaces on plant growth d. to determine the effect of lack of water on plant growth

A) to determine the effect of sunlight on plant growth

atomic number of carbon is 6

electronic configuration of carbon is 1s²2s²2p²

orbital diagram of c is as shown here in the image.

(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