If you picture the hill and the flat ground under it as a right triangle,
you'll see that the 33.9 meters is the side opposite the angle, and the
100 meters of flat ground under it is the side adjacent to the angle.
(opposite) / (adjacent) is the tangent of the angle, so the angle is
whatever angle has a tangent of (33.9/100) = 0.339.
That angle is about 18.73 degrees. (according to our calculators, yours and mine)
Answer:
Completion between two organism is when they fight over resources inadvertently causing the use and destruction of recourses making it more scares. if they don't adapt they die out.
The answer is letter C. Periods
Explanation:
Given that,
Frequency of train horn, f = 218 Hz
Speed of train, 
The speed of sound, V = 344 m/s (say)
The speed of the observed person, 
(a) When the train approaches you, the Doppler's effect gives the frequency as follows :
(b) When the train moves away from you, the Doppler's effect gives the frequency as follows :
Hence, this is the required solution.
Answer:
Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. Renewable resources are replenished naturally and over relatively short periods of time. The five major renewable energy resources are solar, wind, water (hydro), biomass, and geothermal.
Explanation:
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