## Courtney.soden 3 years ago At sea level 3978(mi from center of earth) an astronaut weighs 117lbs. Find the weight when it is 284 mi above surface of the earth & the spacecraft is not in motion.

1. jaersyn

can you provide a relevant equation maybe?

2. jaersyn

formula*

3. Courtney.soden

W=k/d^2

4. Courtney.soden

117=k/3978^2

5. Courtney.soden

k=1851464628

6. jaersyn

what is k?

7. jaersyn

w = work i presume?

8. jaersyn

shouldn't you use the universal gravitational formula for this problem? (haven't taken physics for a little)

9. Courtney.soden

w=weight

10. jaersyn

no, weight is just mass times gravity w=mg

11. Courtney.soden

I am asking for help from my professor this is what she is giving me

12. jaersyn

what's k in the formula

13. jaersyn

not the number, what does it stand for?

14. Courtney.soden

k=just a variable i think

15. jaersyn

ohhhhhhh

16. jaersyn

k = 1851464628

17. jaersyn

w = 1851464628/284^2

18. jaersyn

booya there ya'go i think

19. Courtney.soden

yess

20. jaersyn

4262^2*

21. Courtney.soden

I got 101.9

22. Courtney.soden

which was correct