The answer of this question is at the end of the next paragraph if you don't want to know how I got it.
There are 60 seconds per minute, 60 minutes per hour, 24 hours per day, and 365 days per year. The speed of light is 186,000 miles per second. I'll show you the math that I did. 60 times 60 is 3,600. 3,600 is how many seconds are in an hour so multiply it by 24 to get how many seconds in a day which is 86,400 seconds. Then you would need to find out how many seconds are in a year so you multiply 86,400 by 365 and get, 31,536,000 seconds. Now that you know how many seconds are in a year all that has to be done is multiplying the speed of light by that number. 5,865,696,000,000 miles, or 5 trillion 865 billion 696 million miles are in 1 light-year. Since you want how many miles are in 8 light years you have to multiply 5,865,696,000,000 by 8. You get 46,925,568,000,000 miles.
The size of Pangaea, the supercontinent that existed about 335 million years ago, was approximately 143 million square kilometers.
The time it takes for half of the rubidium atoms in a sample to change into strontium is determined by the half-life of rubidium-87, which is approximately 48.8 billion years. This means that it would take about 48.8 billion years for half of the rubidium-87 atoms to decay into strontium-87.
There are 87 electrons is Francium. There are also 87 protons, 87 neutrons and, by extension, the atomic number is also 87.
In my reference RB87 is stable, or has a half life of at least 4.9x1010 years.
87 cm is equal to approximately 34.25 inches when converted.
Answer: 87 mi. = 140.012 km
87 km
87 kilometers according to our fiends at google maps
There are 52 weeks in a year, so in 87 years, there are 4,524 weeks.
There are 1000 metres in one kilometre. Therefore, 87 metres is equal to 87/1000 = 0.087 kilometres.
140 kilometers is about 87 miles.
There are 1000 metres in one kilometre. Therefore, 87 kilometres is equal to 87 x 1000 = 87000 metres.
87 months / 12 months/year = 7.25 years
To calculate the number of years from 15 B.C. to 87 A.D., you add the years before Christ to the years after Christ. There are 15 years from 15 B.C. to 1 B.C., and then 87 years from 1 A.D. to 87 A.D. This totals 15 + 87 = 102 years.
87 / 12 = 7 with a remainder of 3 7 years, 3 months.
1 year = 12 months therefore 87 years = 1044 months
87 years