Answer:
a. 
b. 
Explanation:
a)
F= 120,000N
Kinetic energy @ impact = 120,000*depth


b)
The momentum is equal to the impulse on him from the snow so:



Its simple use formuila ,
PV=nRT
n,R is constant as the both have same moles.
so,
(p1v1)/T1 = (p2v2)/T2
so, 128.53338kpa
Answer:
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A, b and d
Competition for fix resources of course increases the
energy expenditure needed to gather those resources and leaves less for a
given population. A lower amount of sunlight or water also contributes
to decreased energy which lowers growth. Finally, small borders limit
growth in that population density can only go so high before the death
rate increases beyond the birth rate.