The movement of crustal plates is best described as a: 1)Trend toward increased crust movement overtime
2)Series of events that happens quickly
3)continuing long-term process
4)process that has a predictable pattern

Lets say that an object of a certain volume has a certin mass. what happens to its mass when you double its volume?

An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)

Gunpowder residue is most likely to show up where on a shooters hands