737-700

Hi,

Recently I was in a 737-700 during my trip. I noticed that the
landing speed was quite high. Anyone know what the normal landing
speed is for this aircraft?
Also, I noticed that there was another way to slow down the aircraft
after touching down. Was it reverse thrust of the engines? I am
confused because reverse thrust would cause engine overheating (that
is, there would be no air flowing through the engine but pushed out by
the reverse pitch of the blades).

Louis