A2.98 nf parallel-plate capacitor is charged to an initial potential difference of 49 v and then isolated. the dielectric material between the plates has a dielectric constant of 3.1. what is the potential difference of the capacitor after the dielectric is withdrawn? answer in units of v.

Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.

Which composition of water moves to begin a deepwater current?

Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.