Question

(3) When two inclined planes are joined back to back, it forms a (4)A is actually a inclined plane wound around a rod (5 When salt is dissolved in water. we geta salutations ​

Answer 1

1 When two inclined planes are joined back to back, it forms a

2 A is actually a inclined plane wound around a rod

3  When salt is dissolved in water. we geta salutations ​

Explanation:

1 A wedge is like two inclined planes placed back to back.

2 A screw is another form of an inclined plane; it is simply an inclined plane wrapped around a rod, like a spiral.

3 When salt is dissolved in water, the particles of salt get into the spaces between particles of water and start dissolving and disappear.