7. an elevator descends at a constant velocity. which of the following is true? a. the total energy of the elevator is conserved because energy is always conserved. b. the total energy of the elevator is not conserved because a non-conservative force does work on the elevator. c. the total energy of the elevator is conserved because no net external force acts on the elevator. d. the total energy of the elevator is not conserved because a net external force acts on the elevator.

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

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.