Should two years old be subjected math worksheet

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?

The human body stores chemical energy from digested food. some of the chemical energy is converted into mechanical energy when the body moves. which statement best supported by this information

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2