Yep it's another oddly specific question, but kinda simple. What happens to the line as you got closer to the center of the balloon? This is the Coriolis effect anyone know what?

An engineer designs a roller coaster so that a car travels horizontally for 162 ft, then climbs 127 ft at an angle of 31.0° above the horizontal. it then moves 127 ft at an angle of 46.0° 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.)

This is the substance(s) formed in a chemical reaction.

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain