One end of the jigsaw blade is clamped to the leg of a table with a G-clamp as per the diagram drawn.
The impurities are called dopants.
By putting the source away from the gauze or placing a sheet of paper between the two one can determine the range and penetration of the alpha particles.
When at 25 cmaway an object appears clearest and this is known as least distance of vision or near point.
The vertical trigger on trolley B is given a light tap to release the spring-loaded piston which then pushes the trolleys apart.
Its mass when filled with water is 40.
A beaker is weighed with the triple beam balance and its mass, m1 is recorded.
The vertical velocity at the time it strikes the ground.