A rocket of mass 1200kg is travelling at 2000m/s .It fires its engine for 1 min .The forwarded thrust provided by the rocket engines is 10KN (10000 N) . a)Use the equation of momentum x t to calculate the increase in the momentum of the rocket .
b)use your answer a to calculate the increase in velocity of the rocket and its new velocity after firing the engines .

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 type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic

Match each vocabulary term to its definition. 1. electrons neutral subatomic particles found in the nucleus of the atom 2. neutron lowest energy position of an electron in an atom 3. photon the path of an electron around the nucleus of an atom 4. ground state negatively charged, subatomic particles 5. protons packet of energy of specific size 6. element substance with only one type of atom 7. orbital positively charged, subatomic particles found in the nucleus of the atom