22= 1/2 9.8 t^2 22 is the distance the ruler fell and I am trying to find out the calculation reaction time thanks if you find out

What can you increase the strength of an electromagnet by

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?