I lost my calculaor Please calculate this for me

[rocomath]

I lost my calculaor :( Plz calculate this for me!

\alpha=53.0^{o}

g=9.81\frac{m}{s^{2}}

x=40.0m

y=- 15.0m

v_{0}=\frac{x}{cos{\alpha}}\sqrt{\frac{g}{x\tan{\alpha}-y}}

thanks!

 

[learningphysics]

I get 25.217

 

[rocomath]

I get 25.217

thanks appreciate it!

 

[TMM]

I got the same thing.

For the record, if you just enter your math into google, it will calculate an answer. It knows various constants as well, such as c, G, h, etc.

 

[rocomath]

I got the same thing.

For the record, if you just enter your math into google, it will calculate an answer. It knows various constants as well, such as c, G, h, etc.

example?

i just typed in, 90 times g and got 90 grams

 

[J77]

No calculator -- what are you posting on?

 

[Doc Al]

Google has a built in calculator that you can use in a pinch. Not to mention your PC, as J77 implies. (Look into the spreadsheets.)

(I guess I just repeated what TMM already told you. D'oh!)

 

[stewartcs]

Google has a built in calculator that you can use in a pinch. Not to mention your PC, as J77 implies. (Look into the spreadsheets.)

If you use Excel make sure the angle is in radians and not degrees. VBA expects radians.

Example: =Cos(Radians(53))

 

[TMM]

example?

i just typed in, 90 times g and got 90 grams

You need to capitalize constants that are normally capitalized, especially when they share letters with units. I don't think it knows g for this reason, since G is the gravitational constant and g is grams.

 

[faoltaem]

if you have a pc go through the start menu -> programs -> accessories -> calculator
select view -> scientific for more options
if you have a mac there should just be a pic of a calculator on the desktop

 

[learningphysics]

if you have a pc go through the start menu -> programs -> accessories -> calculator
select view -> scientific for more options

I had no idea about the scientific view! Thanks!

 

[Doc Al]

I had no idea about the scientific view!

Me neither. Cool!

 

[stewartcs]

Here is a link for calculating integrals in case you have the need...

http://integrals.wolfram.com/index.jsp

 

[rocomath]

good news! i got my calc back today, lol. someone took it by accident, but i spent like 165 on the TI-89 today so ima have to return it and buy it later for cheaper. that calculator is freakn awesome tho ... i was like putting the craziest and longest integrals and seeing if it could solve it, lol. amazing.

anyways, thanks for all the input. if i find myself w/o a calculator again i'll use google and my windows-calc.