The sum of two vectors is the vector that begins at the origin of the first vector and goes to the end of the second vector. True or False

The midpoints? a, b, and c are marked on the histogram. match them to the indicated scores. which? scores, if? any, would be considered? unusual?

Diamond will scratch quartz. true or false

Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules