What is 1e9?

What is a gigadollar?

In the USA, a giga-something is 1 billion of something, for example, a gigabyte is 1 billion bytes. Similarly, a gigadollar is 1 billion dollars. Most elsewhere, a US billion is called a miljard, and a billion is a US trillion. To avoid confusion, use the metrix prefixes like kilo-, mega-, giga-, tera-, etc. or scientific notation, e.g. 1 gigadollar is 1e9 USD.

How do I calculate these problems wavelengths in nm?

4 min/mile is about 6.7 m/s to convert to nm you times your answer by 1e9 (1x10^9) (6.626e-34) / (83)(6.7) = 1.19e-27 nm Frist convert 6.00e27 g to kg Second calculate and you'll get an answer in m (6.626e-34) / (6.00e24)(2.90e4) = 3.81e-54 nm

How much is 15 parts per trillion?

It's equal to 0.0000000015 percent. Think of this way: 15 parts per thousand is 15/1000 = 0.015 or 1.5 percent. 15 parts per million is 15/1E6 = 0.000015 or 0.0015 percent. 15 parts per billion is 15/1E9 = 0.000000015 or 0.0000015 percent. And 15 parts per trillion is 15/1E12 = 0.000000000015 or 0.0000000015 percent.

How a GB of data looks compared to a TB of data?

Check your metric system unit multiplier prefixes. Giga- (G) means 1E9 in scientific notation. Tera- (T) means 1E12 in scientific notation.A GB is thus 1/1000th of a TB.This is analogous to these examples:a meter is 1/1000th of a kilometerthe height of a person 5 feet 3.36 inches tall is 1/1000th of a milea penny is 1/1000th of $10two pounds is 1/1000th of a tonetc.

What is the formula for calculating astronomical units?

you cannot convert hours to miles, they are differnt units. If you know speed, you can compute miles from hours. DISTANCE = SPEED x TIME say yiu are going 60 mph for one hour DISTANCE = 60 x 1 = 60 miles

What is the exact mass of the sun?

The Wikipedia lists the mass as (1.98855±0.00025)E30 kilograms. The plus-minus, of course, refers to the probable error in the Sun's mass, as currently known. That means this mass is currently known with a probable error of about 0.01%.It is also necessary to realize that the mass of the sun is slowly but continuously decreasing. due mostly to the conversion of mass to energy in fusion (4.29E9 kilograms/second) but also the solar wind (~1E9 kilograms/second). Admittedly this mass loss is so small compared to the probable error in the total mass that it is usually ignored, but still it makes knowledge of "exact mass of the Sun" impossible.

How many Electrons in a Watt?

Unable to answer due to units mismatch.To show you the problem with your question, electrons are objects with an electric charge and spin (the spinning charge produces a magnetic field), watts are a unit of power typically defined as the product of voltage across an electronic component and current flowing through that component.A poor example of an analogous question having the same kind of units mismatch problem is: "How many baseballs in a horsepower?", baseballs are objects, horsepower is a unit of power.Some examples showing how your question has no answer:watts = volts * amperesamperes = coulombs / secondcoulomb = 6.24E18 electronsLet's find for 1 watt how many electrons move through a component every second with 1 volt across the component:1 watt = 1 volt * 1 ampere1 ampere = 1 coulomb / second1 coulomb = 6.24E18 electronsthe answer is 6.24E18 electrons / secondLet's find for 1 watt the voltage across a component with 1 electron moving through the component every second:1 electron = 1 / 6.24E18 coulombs = 1.60E-19 coulombs1.60E-19 amperes = 1.60E-19 coulombs / second1 watt = 6.24E18 volts * 1.60E-19 amperesthe answer is 6.24E18 voltsLet's find for 1 watt how many electrons move through a component every second with 1 gigavolt across the component:1 watt = 1E9 volts * 1E-9 amperes1E-9 amperes = 1E-9 coulombs / second1E-9 coulombs = 6.24E9 electronsthe answer is 6.24E9 electrons / secondLet's find for 1 watt how many electrons move through a component every second with 1 nanovolt across the component:1 watt = 1E-9 volts * 1E9 amperes1E9 amperes = 1E9 coulombs / second1E9 coulombs = 6.24E27 electronsthe answer is 6.24E27 electrons / secondNow is the number of electrons / second: 1, 6.24E9, 6.24E18, 6.24E27, or an entirely different number. Basically the problem is the voltage across the component making the electrons move and the number of seconds that the electrons are moving are both undefined. Without them being given no answer can be given for a specific number of electrons.But even more fundamentally is the units mismatch that objects and power are measured in different and incompatible units.

What are 1e18 1e15 1e12 1e9 etc?

That's just another way to write numbers in scientific notation. The other common way to express scientific notation is 1 X 1018, 1 X 1015, 1 X 1012, etc. All that means is that the number before the exponent is either followed by the number of zeroes in the exponent (if the exponent's positive), or proceeded by the number of zeroes in the exponent (if the exponent's negative). In the sciences, the first several exponents that are non-zero multiples of 3 (both positive and negative), are given special prefix names. For example, 103 is kilo-, 109 is giga-, and 10-9 is nano-. Below, I added a related link that gives many more examples of these special prefix names.

What is the Arceus code for Pokemon diamond?

us version (works in pearl to)tested arceus code: 94000130 fffb0000 d5000000 00000xxx 1ed b21c4d28 00000000 b0000004 00000000 c0000000 0000000b d7000000 00024620 dc000000 00000006 d2000000 00000000 You will have 493 master balls in you items case and say you want arceus (who doesn't) hold L in the grass and sooner or later arceus level sometimes depends on area route 224 lvl 100 appear for me no other cheat heres some more legendary Pokemon arceus down 1ed arceus 1ec shaymin 1eb darkrai 1ea manaphy 1e9 phonie the masterball limmit less http://www.wikihow.com/Get-Any-Pokemon-on-Diamond-or-Pearl for more get all legenary Pokemon and starters before turning your ds of or it stops working or atleast that what happened to me

How many electron volt in a hertz?

Hz is a unit of frequency and is equivalent to cycles per second. The election-volt, or eV, is a unit of energy and represents the increase in energy of an electron after accelerating through a potential difference of 1 Volt. The energy of a photon with frequency f is given by the Planck formula E = hf, where h is Planck's constant. In terms of eV and Hz, the units of h are eV/Hz, or more commonly eV-secs. The value of h in these units about 4.1357e-15. Hence, a photon with a frequency of 1 GHz will have an energy of 4.1357e-15*1e9, or about 4.1357e-6 eV. This energy is millions of times smaller than the energy needed to break covalent bonds.

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