A moose pushes a barrel with a mass of 6.8 kg over the frictionless surface of a frozen pond. He exerts a constant 50 N force as he does so. What is the barrel’s acceleration?

The use of piers and beams to build a strong foundation for a house.

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility