Consider the trial in which the ramp is at a 20 angle with the horizontal. the surface of the ramp has been replaced with a surface in which frictional forces

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?

Why is metal often used for cooking pan?

Amira pulls a 3 pound wagon 4 feet. how much work has she done?