Why do electromagnetic waves not require a medium for travel? a. because electromagnetic waves travel too fast for stationary particles to move with them b. because electromagnetic waves transmit energy without compressing the particles of the medium c. because electromagnetic waves generate their own particles for compression and use these for movement d. because electromagnetic waves move in two-dimensional space, the particles of mediums exist in 3-d space?

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

The movement of electrons between atoms is called an

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?