A100 kg roller coaster car is located at the top of a hill where the height is 20 m. what is the velocity when it reaches the bottom of the hill?

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.)

The two required components for a generator

The pressure proportional to the area a- inversely b- directly c- increase d-decrease