Um estudante anda 1 km para o leste, 1 km para o sul e em seguida, 2 km para o oeste . a intensidade do vetor deslocamento sofrido no percurso é , em km , aproximadamente igual a :

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision. give the answer in m/s. describe the work you did to get the answer.

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.