10 feet
it sways about 9 feet back and forth and side to side
move your body back and forth and keep your feet on the ground
slide your feet on a board back and forth
Because you are generally sitting down with your feet off the floor or ground when you are swinging your legs, and your legs just naturally bend at the knees when you are sitting down. It is impossible to swing your legs back and forth standing on your feet.
No,one of the towers is taller than the other by two feet
no because the twin towers are 1,776 feet and the sears tower is 1,730 feet 527m
50000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 feet
100 feet into the ground
777 feet tall
90 feet
108
The longest span of the Brooklyn Bridge, between the two towers, is 1595 feet 6 inches (486.3 m).