# combination

1. ### Waves and wave combination

I am finding wave equation questions quite difficult and was hoping for some help with these particular questions. Q1: The figure on the left below shows the displacements of the particles in a string as a function of the position x along the string at t = 0. The figure on the right shows...
2. ### Combination circuit problem

I have been trying to simplify a combined circuit diagram. The thing is, it has a parallel connection followed by a series connection. I know that in a parallel connection the voltage across the two nodes is equal to the voltage across the terminals of the battery, so net voltage is zero... and...
3. ### parallel combination of springs

Let, two springs are connected with a mass in parallel combination. But this mass is situated in the middle of this two springs. When mass applies force to compress one end of one spring, other end of another spring will expand. I searched a lot in net for mathematical problems with solutions...
4. ### combination of lens

1. How will focal length of these two lenses change? i) combining two plano convex lenses attaching plane faces ii) combining two half parts of a convex lens which cut horizontally
5. ### Calculate the net charge on a substance consisting of a combination of 7.8 1013 prot

Calculate the net charge on a substance consisting of a combination of 7.8 1013 protons and 3.0 1013 electrons.