Question

Joemath314159/any other programmer/mathematician, I need a little help...

Answer 1

Hey anyone so I have this assignment..

Answer 2

Write a program whose input will be your weight (in lbs) and age (inyears)
and whose output will be a table containing your weight and age on the
other planets in our solar system and our moon. You can figure out the
appropriate conversions using the example below. Your answers shouldbe
correct to 2 decimal places. Your output should look very similar to the
example below, but you can decide on the exact wording. You can decide
how you want the user to input these values, but it should be clear and
properly explained.

Answer 3

Well I started off with this..

Answer 4

#include<iostream>
#include<cmath>
#include<iomanip>

using namespace std;

int main()
{
double w, m, a_yrs, a;
cout << "Please enter your weight (lbs):\n";
cin >> w;
double m=w/9.8;
cout << "Please enter your age (years):\n";
cin >> a_yrs;
double a=a_yrs*8760;
double g_Me=,
g_Ve=,
g_Mo=,
g_Ma=,
g_Ju=,
g_Sa=,
g_Ur=,
g_Ne=;

Answer 5

Now see that's what I'm doing like first the person will enter their weight, it will be converted to mass, and then reconverted to mass on another planet.

Answer 6

Now I can't find the gravity on the other planets.. anyone knows where I can find those?

Answer 7

It sounds like the problem refers to another example?

Answer 8

Thats a question for google! i'll see what i can find lol

Answer 9

I tried it gives me examples like gravity on mercury is 62% something gravity of earth.. anyway hold on ima post the assignment

Answer 10

http://www.teachervision.fen.com/planets/lesson-plan/353.html

Answer 11

yeah there are websites that give you age and mass (amongst other things)... that you can find on google - as joemath says, lol

Answer 12

Still want your owl? I have it...

Answer 13

#3 there.

Answer 14

that chart shows the ratio of the planets gravity to the earths.

Answer 15

lol estudier I have a nicer owl..oh god.. no easier ways?

Answer 16

Ok well if gravity on mars is 63% of earth and they give you weight on earth your weight on mars will be 63% of that.

Answer 17

just multiply each one by 9.81 m/s^2 to get gravity

Answer 18

I thought the shades were critical:-)

Answer 19

yay lol

Answer 20

Anyway so am I on the right track?
I'm going to attach what the professor wants from me basically

Answer 21

i will just be a cheerleader for this one because i'm dumb in this area.
go computer science!

Answer 22

here

Answer 23

\[mg_{earth} = w\]\[mg_{mars} = m(.63g_{earth}) = .63mg_{earth} = .63w\]

Answer 24

run it and see what happens, i basically need to write my own version of that.

Answer 25

polpaks way is the best way. Unless you need the gravity of each planet for some reason.

Answer 26

scroll down a little on this web page and i think you might find something that helps you :)
http://www.aerospaceweb.org/question/astronomy/q0227.shtml

Answer 27

This formula find you gravity anywhere
\[6.67 10^{-11}\frac{\text{Mass}_{\text{planet}}}{\text{radius}_{\text{planet}}{}^2}\]

Answer 28

what joe just said is what i've given to you - the gravity on each planet and stuff

Answer 29

lol thanks for all the help guys. I thought I wouldn't have to solve for each of the gravities.. but seems I'll have to.

Answer 30

If they give you the gravity on each planet as a % of earth's gravity, then the weight on that planet will be that same percentage of your weight on earth.

Answer 31

dont solve for them, just use the ratios (or percentages)

Answer 32

OK, so I want know how much a kilo is on Jupiter

Answer 33

no guys I'm trying to split the program into small pieces

Answer 34

by defining extra variables.. those variables are my gravities

Answer 35

oh, nvm then, gogo solve for gravity!

Answer 36

double g_Me=,
g_Ve=,
g_Mo=,
g_Ma=,
g_Ju=,
g_Sa=,
g_Ur=,
g_Ne=;

Answer 37

lol yea.. i just have to find those, so then at the end it's not a mess

Answer 38

ill just solve for gravities.. thanks for all the help!

Answer 39

I still don't see why you need those

Answer 40

http://www.aerospaceweb.org/question/astronomy/q0227.shtml - has all the figures for gravity on all planets!!

Answer 41

you would just multiply 9.81 m/s^2 by those ratios right?

Answer 42

YESS I LOVE YA NAADIRAH!

Answer 43

LOL i posted it like 5 minutes ago!!

Answer 44

...or just look at Naadirahs link lol, awesome :)

Answer 45

google is a genius :)

Answer 46

That chart is flawed! Pluto isnt a planet! lolol jk jk

Answer 47

Is my age different on Jupiter?

Answer 48

you got me scared then. i thought i had it completely wrong:p

Answer 49

i dunno now i have to find the lengths of years on different planets.

Answer 50

Oh, I see, Jupiter years..

Answer 51

in hours.

Answer 52

a "year" is the time it takes for the planet to revolve once

Answer 53

http://wiki.answers.com/Q/What_is_a_year_on_the_planets

Answer 54

yeah, figure out its orbit

Answer 55

My link should tell you

Answer 56

oh nice I can just do in days..

Answer 57

so if you create ratios of revolutions, that should do the trick. Something like, Jupiter spins .67 times when the earth spins once. Then my age on jupiter would be 25(.67) (im 25yrs old)

Answer 58

i just made up those numbers (not my age)

Answer 59

good luck!!

Answer 60

You will have to use function for each planet

Answer 61

ty all. Ima post my first weight/year converter here once I'm done. I already have a basic quadratic solver and a y=mx+b equation finder written up

Answer 62

btw tnx for the pic estudier

Answer 63

u can only see my shades, not the owl haha