A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.
<span> Use the Law of Cosines, where you have a triangle with included angle of 145 degrees and sides of 16 and 18. You are then solving the equation: </span>
<span>d^2 = 16^2 + 18^2 - 2(16)(18)cos(145) </span>
Answer:
16
Explanation:
Mechanical advantage = force out / force in
MA = 2000 N / 125 N
MA = 16
Answer:
The time required for one cycle, a complete motion that returns to its starting point,it is called periodic motion
Explanation:
I hope this will help you:)
Natural resources are found in abundance in the US.
Explanation:
The United States boasts of rich renewable and non-renewable natural sources.
Land: Large landmass is a huge advantage and being under one nation or government leads to great industrial, agricultural and economic development
- Farmland: America boasts huge farmlands where mechanized agriculture is done on a large scale
- Minerals: A number of minerals like copper, gold, iron ore, coal etc are found in abundance
- Forests: The rich and different types of forests found in North America provides huge resources of timber
Water: The large coastline, huge lakes, and rivers all form a great resource for fishing, water recreational activities, oil drilling and other industries.
Energy sources: The U.S. is rich with energy sources like coal, oil, petroleum, and natural gas. Mining, especially of coal, is one of the chief industries in the U.S. The U.S. is a key oil producer in the World.
