An object is released from rest on a planet that has no atmosphere. The object falls
freely for 3.63 m in the first second.
What is the magnitude of the acceleration
due to gravity on the planet?
Answer in units of m/s^2

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s

the answer is 100. i just did this lesson and got a 100% on it. : )

-fishtank

in most common fires, oxygen is needed for an oxidation reaction to takes place. the combination of oxygen with any element as fuel can create fire and combustion will occur especially if wood, light materials and other combustible things are combine with oxygen.