A lighter block (3 kg) and a heavier block (12 kg) sit on a frictionless surface. Both blocks are initially at rest. The same force of 6 N then pushes to the right on each block for a distance of 9 m. What are the initial kinetic energies of the blocks? K_1i = K_2i = What are the changes in kinetic energy of the blocks? Delta K_1i = Delta K_2i = What are the final kinetic energies of the blocks? K_1f = K_2f = What are the initial momenta of the blocks? p_1i = p_2i = What are the final momenta of the blocks? p_1f = p_2f = What are the changes in momenta of the blocks?

the word that best describes martin luther king jr.'s tone in the video is dignified

martin luther king, jr. was a social activist and baptist minister who played a key role in the american civil rights movement from the mid-1950s until his assassination in 1968. the video shows his manner and attitude having or showing a composed or serious manner that is worthy of respect so dignified is the correct answer

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.