For a given wave if the frequency doubles the wave length?

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?

Which of the following is the result of the nuclear weak force? the instability of large nuclei the repelling force between positively charged protons the structure of the atom certain types of nuclear decay

If a tank filled with water contains a block and the height of the water above point a within the block is 0.8 meter, what is the pressure at point a?