Which statements about earth’s core explain earth’s magnetic field? check all that apply.

earth’s core is composed of magnets.
the inner core is solid.
the outer core is solid.
the inner core is liquid and moving.
the outer core is liquid and moving.
earth’s core is composed of iron and nickel.

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.)

Which diagram correctly demonstrates the various forces acting on a ball moving horizontally with some speed?

Why do different substances have diffrent properties