Plz first one to answer gets | |＿      ＿    |    ＿⚡ |      |    |＿|  |    |＿|⚡ |      |    |＿    |    |        ⚡ ❕~    ＿        ⚡ |ー|ー|      |＿|      ❕ |        |        |      |＿  which of these statements does not refer to radiation? a. some of. this energy is reflected off of earths atmosphere b. warm air rises and takes heat with it; eventually it cools and sinks c. sunlight travels through space without the aid of fluids or solids d. land and ocean absord and re-emit heat from the sun

B. warm air rises and takes heat with it; eventually it cools and sinks

This answer is not showing you that radiation is the source of electric energy. So the answer is B. Warm air rises and takes heat with it; eventually it cools and sinks

Hope this helped.

(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