Um atirador dispara um revólver formando um ângulo de 37º com a horizontal, em uma região plana, a uma altura de 2 m do solo. o projétil atinge o solo a 88,8 m do ponto de lançamento. qual é a velocidade com que o projétil deixou o revólver? dados: cos 37º = 0,8 sen 37º = 0,6

Which of the following are not typically included in the periodic table? a. atomic mass b. element symbol c. isotopes d. number of electrons

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c. the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Ascientific blank must be testable and capable of being proven false?