Parallel incident rays appear to bounce like they have all originated from the same point. What is this point called? A. cross point

B. midpoint

C. bounce point

D. focal point

Identify two factors that determine the rate of stream erosion

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.)

According to newton’s first law of motion, which force is expected to cause a body to accelerate?