A i think.................
Answer:
d) 625 grey wolves
Explanation:
Number of grey wolves in yellowstone;
1997 = 100 wolves
2002 = 275 wolves
Between 1997 and 2002 (a five year period), number of wolves increased by; 275 - 100 = 175 wolves
Population growth rate between 1997 and 2002 = 175 wolves per 5 years
Note that the population growth continued at the same rate from 2002 to 2012 (a ten year period).
Therefore;
if; 5 years = 175 wolves
10 years = (175 × 10) / 5 =350 wolves.
therefore, number of wolves between 2002 and 2012 = 350 wolves.
Number of wolves as at 2002 = 275 wolves
total number of wolves at 2012 = 350 + 275 = 625 wolves
A gas piston is a system that is used in the generators to produce energy. With the change in the volume of the piston at the constant pressure, the energy in joules is, 266.49 J.
<h3>What is energy?</h3>
The energy of the system is given by the negative product of the pressure and the change in the volume.
Given,
Pressure = 2.12 atm
Initial volume = 0.260 L
Final volume = 1.50 L
Energy = -PΔV
= - (2.12) (1.24)
= - 2.63 L. atm
Converting the units:
1 L atm = 101.325 J
-2.63 L atm = 266.49 J
Therefore, 266.49 J is the energy.
Learn more about energy here:
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Focus definition, a central point, as of attraction, attention, or activity: The need to ... The need to prevent a nuclear war became the focus of all diplomatic efforts. ... What do a.m. and p.m. stand for? .... the point beneath the earth's surface at which an earthquake or underground
Hot: drought
Cold; dead animals
rainy: flood
cloudy: thunderstorms
mostly natural disasters: everythings dead