yes, most mudflows do move in one large mass but they usually only occur on gentle slopes.
Slump
A lot of different things move in one large mass. One common example is a glacier, a large mass of ice that moves as one unit.
slump
Glacier
mudflows were one of them
A large land mass that protrudes out from a continent is called a Subcontinent. One example of subcontinent is India.
The answer will depend on the shape of the 3.63 pound object. For example, a light breeze would be more than sufficient to move a sail-boat with a hundred times as much mass.
Slump
One way to move a large stereo into your house is by paying professional movers to help you move it in to insure that it all gets in your house safe and unharmed.
What two continente are joined together in one large land mass
The volcanic mudflows that occur at stratovolcanoes are known as Lahars. These flows can travel up to sixty miles per hour and have a consistency of wet cement. These flows destroy everything in their path and can travel up to a hundred miles down the valleys from a voclano. These mudflows can occur for many reasons, and it is not required for a volcano to erupt to produce one of these flows. Flank collapse from hydrothermally altered rock in a large stratovolcano can generate these flows without any warning and without an eruption.
The density will not be as large as one with the same mass which is spread over a smaller volume.