When a bag of popcorn is opened in a room, the smell of the popcorn spreads throughout the room over time. Explain why this happens using ideas about particle motion. Be specific and detailed.

The aroma of the popcorn spreads throughout the room gradually due to the presence of air.

Explanation:

The popcorn bag releases an aroma when opened. This aroma then travels through the air due to which the aroma spreads throughout the room.

Note:

If the room was closed, the aroma will remain inside the room. If the room was open, the aroma will also spread beyond the room due to the presence of air.

answer; i believe that the correct answer is (a) potassium(k)

(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