How long is 0.9 m

So after the first second, it will be traveling at 9. If you dropped it from a high enough place the air friction force pushing up would equal 1G and the object would stop accelerating. In space, there is no air friction so a space ship could theoretically continue to accelerate at 1G until it reached the speed of light or the laws of relativity take over and time slows down and you never actually reach light speed So what if our units of acceleration and time were defined by some earth-specific quantities?

Acceleration and time themselves are not specific to earth. A metre might originally have been defined as one ten-millionth of the distance from the Earth's equator to the pole, but we can still use metres to describe the diameter of a crater on Mars. The math is fairly simple, but my question is Why? I assume Einsteins and Newtons equations are interrelated.

It can not be coincidence that accelerating at 1g for 1 year equals the speed of light. To reach the speed of light by accelerating at 1g won't take a year, it will take nearly a year. Not a coincidence, and not even related. It may be physics but that's the wrong formula. That formula would be for constant velocity. The question was about constant Acceleration which is meters per second squared or an increase of meters per second every second.

So after the first second you going 10 meters per second after the second you're going 20 meters per second the third you're going 30 meters per second. Not quite right. Thus, your example holds if t i.

There's the disconnect. Said differently, you need to account for the velocity the object is traveling each incremental second, and add that value to the formula you provided until you get to light speed. Alternatively, you can use the Summation Formula, which involves a simple quadratic equation, to calculate the time in seconds you'd need to achieve light speed.

Skip to main content. Earth Science. Articles Answers to Science Questions How long do you have to accelerate at G to reach the speed of light? How long do you have to accelerate at G to reach the speed of light? Part of the show The Milky Way's local black hole. Play Download. Question Dear Dr Chris. Previous Do other planets switch magnetic poles? Next How do space-travellers navigate in our solar system? SO - there appeared to be some confusion between what guess is, and what a theory is: From the Dictonary: Theory.

I did a bit of dictionary work myself Hmm, the cap seems to fit. How long It would take less than 12 parsecs. A parsec is an astronomical unit of length not a measure of time. No, you won't find this in your physics or spacetime-based relativity textbooks. Not full answer Permalink Submitted by A. If the universe has been accellerating for 14 billion years RE: If the universe has been accellerating for 14 billion years.

You forgot to square the. Dfc2, Yes, you understand correctly the concept. Exponential speed increase Permalink Submitted by Teddy P. Answer: 7, seconds or 2. The passenger's referential frame: Article on the Photon Rocket. How long would it take from the passenger's referential frame? This website will calculate the ship time and observer time. Theory is not a guess. That's not what a theory is. So what? Always show your working! I wrote that post, and I was wrong.

Dr Karen Meador made this chart for us and you to help us with these conversions. Feel free to use this chart on your site as long as you link to Karen and Magpie Gemstones. To Convert to Millimeters to Inches: Multiply millimeters x. Conversion Chart: Millimeters to Inches. Inches in Decimals. Every inch is 25mm so times the number of inches by 25mm and you have how long the strand is in millimeters.

Then divide by the width of the bead. The striker-fire, semi-automatic polymer pistol is available in matte black or FDE — Flat Dark Earth — finishes, and includes two magazines, a limited lifetime warranty and a lifetime service policy.

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