If a wave is traveling at 200 m/s and it’s wavelength is 0.5 meters , what is the frequency of the wave

Um vetor representa um deslocamento cujo módulo é 20 m. se v faz um ângulo de 60 graus com a horizontal, qual é o valor das componentes horizontal e vertical deste vetor?

How does the amount of energy required to hold each proton and neutron in the nucleus compare to the energy released when they are removed?

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell