By how many Newtons does the weight of a 100. kg person change ...

[j.rubin]

By how many Newtons does the weight of a 100. kg person change when he goes from sea level to an altitude of 5.00 km?
 
  What will be an ideal response?

Question 2

Consider a submarine at a depth of 67. meters in sea water (density 1.03 grams/cc) and the interior of the sub is at 1.0 atmosphere.
 
  (a) What is the outside pressure at that depth?
  (b) Find the total force that must be withstood by a square hatch (0.90 m square) which leads to the sub interior.

[dreamfighter72]

Answer to Question 1

1.54 N

Answer to Question 2

(a) 6.8  105 Pa = 6.7 atm
(b) 0.47 MN

[j.rubin]

Gracias!

[tandmlomax84]

Thanks for the timely response, appreciate it