1. A large crate is placed on a ramp. The parallel force is 380N and the force of friction is 500N. a) How much force is required to push the crate up the ramp? B)
How much force is required to push the crate down the ramp?

i think they are all correct

explanation:

they seem good

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

wire in brush may conduct electricity from cell to drill and vice versa electrc shock possible