According to Newton’s third law of motion, which are equal?

momentum and velocity
collision time and stop time
mass and momentum
action force and reaction force

Which of the following correctly describes the early view of catastrophism?

What are the theoretical properties of a gas at a temperature of 0 kelvin?

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.)