Answer: Virtual addresses are NOT the same as physical addresses.

Each of the logical units (program text, stack, heap, etc) are are grouped by address ranges (call virtual pages) of fixed size (such as 4K bytes).

Physical memory is also grouped into the same fixed size ranges (called physical pages).

Then when a virtual page is loaded into physical memory, it can be loaded into any physical page.

Note that the physical address where a virtual page is loaded is typically NOT the same as the virtual address.

Physical Address	Physical Pages
0x06000000___	proc 1: 0x08048000
0x06001000___	proc 1: 0x08049000
0x06002000___	proc 2: 0x08049000
0x06003000___	free
0x06004000___	proc 2: 0x08048000
0x06005000___	free
0x06006000___	proc 1: 0x0804a000
0x06007000___	proc 2: 0x0804a000
...   ___	...