A net force of 430 N acts to stretch an extension spring. How far will the spring stretch if its spring
constant is 700 N/m?

Aregular polygon has angkes of size 150° each. how many side has the polygon

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.)

Avoltaic cell converts chemical energy to