Answer:
8,394 miles
Explanation:
Longitudes, also known as 'meridians', are the lines that go from north to south. They are measured from the Prime Meridian in a east-west direction.
Latitudes, also known as parallels, are the lines that go from east to west. They are measured from the equator in a north-south direction.
Assuming the radius of earth is 3.950 miles.
8,394 miles is calculated as (60 + 80) = 140° * 59.956 = 8,394. Thus, answer will be 8,394 miles.
Final answer:
To estimate the distance between two points at 30° south latitude and longitudes 60° west and 80° east, we note the significant difference in longitude but lack specific mathematical formulas here for precise calculation. The approximation would involve considering the convergence of longitudinal lines towards the poles, affecting the distance covered by one degree of longitude.
Explanation:
The question relates to calculating the distance between two points that share the same latitude but differ in longitude. Given the points are at 30° south latitude and their longitudes are 60° west and 80° east, we need to understand how longitudinal distances are measured. Since one degree of longitude equals 69 miles at the equator and decreases towards the poles, we calculate at 30° south, which is mid-latitude, where it's less. However, a precise calculation needs a more detailed approach, such as using the Haversine formula or spherical trigonometry, which isn't outlined here. Instead, to calculate distance simply, we acknowledge that the total longitude difference is 140° (considering 60°W to 0° and 0° to 80°E). This suggests a substantial span which at mid-latitude, would not be accurately represented by just multiplying 140 by a standard mile per degree of longitude due to the convergence of meridians towards the poles. Thus, without a specific formula, we estimate acknowledging that precise distance may differ.
7x - 1 + 6x - 1 = 180
Answer: X=14
Explanation:
Which statement describes absolute and apparent brightness?
O Absolute brightness and apparent brightness are identical ways to describe the brightness of a star.
O Absolute brightness and apparent brightness change with the distance from the star to the observer.
O Absolute brightness depends on the distance from the star to the observer, whereas apparent brightness is
always the same.
O
Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes
with distance from the observer.
Answer: Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer.
Explanation:
I hope this helps, have a good night :) <3
Absolute brightness is the actual amount of light produced by the star, whereas apparent brightness changes with distance from the observer the following statement describes absolute and apparent brightness. The correct option is D.
A star's real energy production is measured in terms of absolute brightness, although our perception of that energy depends on our viewing distance. In order to comprehend the nature of stars, their wide range of distances, and their observed brilliance in the night sky, it is essential to make this distinction.
The exact amount of light energy emitted from the surface of a star is referred to as its absolute brightness. It represents the amount of energy the star generates in a given amount of time because it is a measurement of the star's intrinsic brightness. Consider absolute brightness as the star's overall "brightness power," regardless of the observer's distance from it.
Thus, the ideal selection is option D.
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What do we call land that is hard to grow crops on?
Answer:
Arable land !!!!!!!::::::::::::::::::::::::::::
Land that is hard to grow crops on can be referred to as infertile land.
What is infertile land ?Infertile land is land that does not have the necessary nutrients or water for plants to grow. The soil may not have the necessary nutrients for plants to grow. This can be caused by a lack of organic matter, or by the presence of toxic substances.
The soil may not have a good structure for plants to grow. This can be caused by compaction, or by the presence of too much sand or clay. Infertile land can be improved by adding nutrients, water, and organic matter to the soil.
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