how many lifting machines are there in laboratory? name them
name the lifting machine in which load goes back after removing effort
name a lifting machine with two sets of gears
how many machines are there in laboratory? name them
name any two lifting machines with gears
name the lifting machines which can be used to lift a heavy load
what is maximum load carrying capacity of beam apparatus on dial
which principle is applied to remove hardness of water explain
what is soft water? What is hard water?
which principle is applied to remove hardness of water
name the filters used for filtration on large scale
y = 3x^2 + 2x - 7 find slope of tangent and normal at point (3,2)