Recent content by wolf1728

This is a reply to ttess (posting #1) Weight is a force and as we know force = mass * acceleration, (where acceleration = 9.80665 meters / sec²). A mass of 1 kilogram on the Earth's surface has a force of 9.80665 Newtons. Basically, we know that objects don't need velocity to have weight (or...

Glad to help! That's why we're here.

Just out of curiosity I calculated the mass as 3.1696 x 10^32 kilograms. I trust you calculated the same thing? Anyway, I was glad to help out.

Maybe I'm joining the discussion a bit late here, but perhaps I can offer some help. The equation you need is: mass = (4 * PI² * r³) / (G * t²) where mass ('m') is in kilograms, radius ('r') is in meters) time ('t') is in seconds and G = 6.674 * 10^-11 m³/kg*s² time ('t') should be in seconds...

You said force=weight x acceleration No. force = MASS * acceleration

Thanks for the alert Mark44. I've had my own website for about 20 years and I guess I haven't kept up with the latest "fancy-schmancy" computer tricks. (Heck, my computer runs on coal! LOL)

Thanks for the quick reply! Just to help you out, the coding for superscripts is ² OR if you want to make the "squared" sign hold the "ALT" key and simultaneously type 0178 on the number key pad and you'll get ² to get the "cubed" sign it's the "ALT" key plus 0179 and you get ³

This is not a physics question. Each time a ball bounces it will bounce to, let's say 75% of its previous height. (I am not interested in the time, energy or velocity, of the ball.) So if we drop it from 100 cm it will bounce back up to 75 cm, and on the next bounce it goes up to 56.25 cm and...

If you need an STP calculator, I updated my own located here: http://www.1728.org/stp2.htm You can choose from four standards of STP.

Thanks for the quick replies. Still, you would think that after 35 years, there would be some kind of cooperation.

Okay, my topic doesn't really ask a question but it is surprising to me that the old criteria of 273.15K and 760 torr are still being reported as the standard and very few websites have the "new" criteria of 750.06 torr. Are scientists, webmasters, etc. usually this slow at adopting changes...

Simon Bridge Thank you for that answer.

When reading about radioactive decay, I see two types of decay constants: λ and "k". From what I have interpreted, k = ln (.5) / half-life whereas λ = ln (2) / half-life. Have I defined these correctly? If this is so, the difference between the two is slight. When putting these into equations...

I originally was writing a pendulum calculator and while researching the Internet, I came across this topic. Anyway, I finished the calculator and it is online: http://www.1728.org/pendulum.htm It can calculate pendulum periods up to theta 14 and uses the arithmetic mean to calculate exact...

StevenJacobs990 I don't know the equation for generating those numbers in the formula but here is the large amplitude formula carried out to theta 20: