Consider the two vectors A= i + 2j - k and B=3i - 3j + K Vector A is 2.80cm long and is 60°above the x-axis in the first quadrant. Vector B is 1.90cm long and is 60° below the x-axis in the fourth quadrant. Use components to find the magnitude and direction of (a) A + B (b) A - B (c) B - A.​

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a.m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3

What distance does a car travel as its speed changes from 0 to 20 m/s in 17 s at constant acceleration?