Choice A is the right answer! Buy at high altitude and sell at low altitude
Hope this helps :)
Answer:
v = 0.33 [m/s]
Explanation:
We must remember that speed is defined as the relationship between the displacement in a given time. In this way, we can propose the following equation.
where:
v = velocity [m/s]
d = displacement = 40 [m]
t = 2 [min] = 120 [s]
Now replacing we have:
![v=40/120\\v=0.33[m/s]](https://tex.z-dn.net/?f=v%3D40%2F120%5C%5Cv%3D0.33%5Bm%2Fs%5D)
<h3>formula of speed is distance/time</h3><h3>so</h3><h2>140/2.5</h2><h2>= 56</h2><h2>the answer should be </h2><h2>56 km/h</h2>
<span>The Ptolemaic theory of the universe was
disproved by Nicolaus Copernicus (1473–1543), letter C and followed by Johannes
Kepler (1571–1630). <span>Geocentric
theory suggested that the Sun and moon orbited Earth, and the rest of the
planets orbited the Sun is Heliocentric theory. Heliocentric theory of Nicolaus
Copernicus during the Scientific Revolution on 17th and 18th
century while Geocentric theory was proposed by Ptolemy (AD 150) and Aristotle.
Today, we believe more on the Heliocentric theory and it has been proven as
well.</span></span>
<span> </span>
