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Q: Why was selenium not identified as an element until 1818?
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Continue Learning about Natural Sciences

When did the metric system originate?

1818


Who lived in the Red River Basin in 1818?

The Anglo-Americans


How was the conflict resolved when the US and Britain both claimed Oregon?

In 1818, the two countries agreed to joint occupancy of the area west of the Rocky Mountains, which lasted until 1846, when the Oregon Treaty divided the lands along the 49th parallel.


How Many elements were known in 1800?

In 1818 there were 49 known and accepted (by the scientific community) elements.


A bullet is shot horizontally from a gun at 275ms How much does the bullet drop in flight if the targey is 50m away?

The bullet dropped .1612 meters. To solve this type of problem, first determine how much time it took the bullet to travel to the target. Since Velocity = Distance / Time, Time = Distance / Velocity. In this problem Time = (50 m) / (275 m/s) = .1818 seconds. Now use this time to figure out how far the bullet would have fallen due to gravity. You've probably seen this equation (or something like it) before: Δy = vo*t - 1/2 * g * t2. This equation means that to find how far the bullet fell you need to know how long it was falling, how fast it was falling at the very beginning, and what the acceleration due to gravity is. We already figured out how long the bullet was falling, we know that it wasn't falling at all at the very beginning, and gravity = 9.8 m/s2. This means that: t = .1818 vo = 0 g = 9.8 So plug that in to the previous equation: Δy = (0) * (.1818) - (1/2) * (9.8) * (.1818)2. Δy = - .1612, with the - sign meaning the bullet went down and not up into the air.

Related questions

Savage 22 rifle octagon barrel dated April 1818?

Not a good description. The .22 rimfire was not invented until 1856, so a rifle made in 1818 could not be.


How long was Chile a colony of Spain?

It was a colony of Spain until Feb 12, 1818 (277 years)


How many valves did the first trumpet have?

Trumpets date back to 1500 BCE, but trumpets did not have valves until 1793 AD and did not take off until 1818.


What is 1818 in percent form?

1818 = 181,800%


What is 1818-1895?

1818 - 1895 = -77


Was Illinois one of the original colonies?

No, Illinois wasn't an original thirteen colony. It wasn't even a state until 1818.


How much was gas in 1818?

Gasoline did not exist in 1818.


What is the smallest common multiple of 1818 and 606?

1818 is.


How many nines in 1818?

1818 ÷ 9 = 202


What was the treaty of 1818?

When a tready happened in 1818 :P


What is the value of a 1818 dime?

There were no U.S. dimes minted in 1818.


How did Chile gain it's independence?

Chile's Independence Day is September 18, 1810. However, full independence was not granted by Spain until 1818. It was formally recognized by Spain in 1844.