When sending encrypted traffic from firewall to firewall, why does there need to be an extra IP header? Why cannot the firewall simply encrypt the packet, leaving the source and destination as the original source and destination?

Knowing that the central portion of link bd has a uniform cross sectional area of 800 mm2 , determine the magnitude of the load p for which the normal stress in link bd is 50 mpa. (hint: link bd is a two-force member.) ans: p = 62.7 kn

Match the sentence fragment in the first column with the appropriate ending in the second column. a little per favore?

Peter is thinking of a number which isless than 50. the number has 9 factors.when he adds 4 to the number, itbecomes a multiple of 5. what is thenumber he is thinking of ?